[TANKS] Air Supply Question ---
I am building the turret on my M1A1 Abrams tank. I have a 22 cubic inch, high pressure, air tank I would like to use. It will give about 80 shots. Refilling air is no problem, as I own a carbon fiber, 4500 PSI, 30 minute, SCBA tank. Will 80 shot air tank capacity be enough?? I know the Magazine is limited to 40 shots, but can you reload during a battle? There will be a micro line hose to connect the tank and marker. I think there is a way to vent the air using this hose? Would that work as the air supply shut off required by the rules? Does a quick disconnect count as the air shutoff ?? What are people using for an air shut off? Thanks Mark -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group at http://groups.google.com/group/rctankcombat To unsubscribe from this group, send email to rctankcombat+unsubscribegooglegroups.com or reply to this email with the words REMOVE ME as the subject.
[TANKS] Air Supply Questions ----
I am building the turret on my M1A1 Abrams tank. I have a 22 cubic inch, high pressure, air tank I would like to use. It will give about 80 shots. Refilling air is no problem, as I own a carbon fiber, 4500 PSI, 30 minute, SCBA tank. Will 80 shot air tank capacity be enough?? I know the Magazine is limited to 40 shots, but can you reload during a battle? There will be a micro line hose to connect the tank and marker. I think there is a way to vent the air using this hose? Would that work as the air supply shut off required by the rules? Does a quick disconnect count as the air shutoff ?? What are people using for an air shut off? Thanks Mark -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group at http://groups.google.com/group/rctankcombat To unsubscribe from this group, send email to rctankcombat+unsubscribegooglegroups.com or reply to this email with the words REMOVE ME as the subject.
[TANKS] How big an air tank do I need?
I am building the turret on my M1A1 Abrams tank. I have a 22 cubic inch, high pressure, air tank I would like to use. It will give about 80 shots. Refilling air is no problem, as I own a carbon fiber, 4500 PSI, 30 minute, SCBA tank. Will 80 shot air tank capacity be enough?? I know the Magazine is limited to 40 shots, but can you reload during a battle? There will be a micro line hose to connect the tank and marker. I think there is a way to vent the air using this hose? Would that work as the air supply shut off required by the rules? What are people using for an air shut off? Thanks Mark -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group at http://groups.google.com/group/rctankcombat To unsubscribe from this group, send email to rctankcombat+unsubscribegooglegroups.com or reply to this email with the words REMOVE ME as the subject.
[TANKS] How Much Air Do I Need??
I am building the turret on my M1A1 Abrams tank. I have a 22 cubic inch, high pressure, air tank I would like to use. It will give about 80 shots. Refilling air is no problem, as I own a carbon fiber, 4500 PSI, 30 minute, SCBA tank. Will 80 shot air tank capacity be enough?? I know the Magazine is limited to 40 shots, but can you reload during a battle? There will be a micro line hose to connect the tank and marker. I think there is a way to vent the air using this hose? Would that work as the air supply shut off required by the rules? What are people using for an air shut off? Thanks -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group at http://groups.google.com/group/rctankcombat To unsubscribe from this group, send email to rctankcombat+unsubscribegooglegroups.com or reply to this email with the words REMOVE ME as the subject.
[TANKS] How big should my Air supply be?
I am building the turret for my M1A1 Abrams tank. I can fit in a 22 cubic high pressure tank or a 47 cu inch tank. There is space for ether tank, but I prefer the small one. Its good for about 80 shots. I have a 4500 psi carbon fiber, bulk tank (30 minute, SCBA, firefighters tank), so refilling in the field is no problem. Heres my question: Is 80 shots out of the small tank enough for a battle? I know the magizine is limited 40 balls, but can you reload during a battle? Thanks! Mark -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group at http://groups.google.com/group/rctankcombat To unsubscribe from this group, send email to rctankcombat+unsubscribegooglegroups.com or reply to this email with the words REMOVE ME as the subject.
[TANKS] Air Supply Question ??????
I am building the turret on my M1A1 Abrams tank. I have a 22 cubic inch, high pressure, air tank I would like to use. It will give about 80 shots. Refilling air is no problem, as I own a carbon fiber, 4500 PSI, 30 minute, SCBA tank. Will 80 shot air tank capacity be enough?? I know the Magazine is limited to 40 shots, but can you reload during a battle? There will be a micro line hose to connect the tank and marker. I think there is a way to vent the air using this hose? Would that work as the air supply shut off required by the rules? Does a quick disconnect count as the air shutoff ?? What are people using for an air shut off? Thanks Mark -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group at http://groups.google.com/group/rctankcombat To unsubscribe from this group, send email to rctankcombat+unsubscribegooglegroups.com or reply to this email with the words REMOVE ME as the subject.
[TANKS] Paintball Air Supply Questions
I am building the turret on my M1A1 Abrams tank. I have a 22 cubic inch, high pressure, air tank I would like to use. It will give about 80 shots. Refilling air is no problem, as I own a carbon fiber, 4500 PSI, 30 minute, SCBA tank. Will 80 shot air tank capacity be enough?? I know the Magazine is limited to 40 shots, but can you reload during a battle? There will be a micro line hose to connect the tank and marker. I think there is a way to vent the air using this hose? Would that work as the air supply shut off required by the rules? What are people using for an air shut off? Thanks -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group at http://groups.google.com/group/rctankcombat To unsubscribe from this group, send email to rctankcombat+unsubscribegooglegroups.com or reply to this email with the words REMOVE ME as the subject.
[TANKS] Air Supply Question
I am building the turret on my M1A1 Abrams tank. I have a 22 cubic inch, high pressure, air tank I would like to use. It will give about 80 shots. Refilling air is no problem, as I own a carbon fiber, 4500 PSI, 30 minute, SCBA tank. Will 80 shot air tank capacity be enough?? I know the Magazine is limited to 40 shots, but can you reload during a battle? There will be a micro line hose to connect the tank and marker. I think there is a way to vent the air using this hose? Would that work as the air supply shut off required by the rules? What are people using for an air shut off? Thanks -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group at http://groups.google.com/group/rctankcombat To unsubscribe from this group, send email to rctankcombat+unsubscribegooglegroups.com or reply to this email with the words REMOVE ME as the subject.
[TANKS] Air Supply
I am building the turret on my M1A1 Abrams tank. I have a 22 cubic inch, high pressure, air tank I would like to use. It will give about 80 shots. Refilling air is no problem, as I own a carbon fiber, 4500 PSI, 30 minute, SCBA tank. Will 80 shot air tank capacity be enough?? I know the Magazine is limited to 40 shots, but can you reload during a battle? There will be a micro line hose to connect the tank and marker. I think there is a way to vent the air using this hose? Would that work as the air supply shut off required by the rules? Does a quick disconnect count as a shut off? What are people using for an air shut off? Thanks Mark -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group at http://groups.google.com/group/rctankcombat To unsubscribe from this group, send email to rctankcombat+unsubscribegooglegroups.com or reply to this email with the words REMOVE ME as the subject.
[TANKS] 900 MHZ radio link and robot controller $75 on ebay
on ebay: A robot controller and 900 MHZ controler http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemitem=320503790759 This is the second listing @ $75 Is this thing useful to anyone here?? Mark -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group at http://groups.google.com/group/rctankcombat To unsubscribe from this group, send email to rctankcombat+unsubscribegooglegroups.com or reply to this email with the words REMOVE ME as the subject.
[TANKS] Paintball Gun Mounting Question
Has anyone tried this? I am building one of those low profile modern tanks -- M1A1 Abrams. Theres not much head room in the turret to mount the marker and feed system. Why couldnt a guy mount the paintball marker in the lower hull and shoot the paintball through a hose? The hose would connect to a barrel in the turret and the gun would be mounted under the turret where theres plenty of room? The gun could rotate with the turret or the gun could be fixed mounted and the hose could have a rotary connection. The hose would allow flexability to elevate the gun. I have ordered a lazy Susan turntable with a 6 inch hole in it. This would allow some room to pass the hose through. I have machine tools in the basement and can build about anything to make the hose idea work. Could you shoot the paintball through a hose and not have it break up going through the curves?? Mark -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group at http://groups.google.com/group/rctankcombat To unsubscribe from this group, send email to rctankcombat+unsubscribegooglegroups.com or reply to this email with the words REMOVE ME as the subject.
[TANKS] Re: Paintball Gun Mounting Question
Derek: I thought Blackwater was out of business! What would you do over there, or cant you tell me without being required to kill me? Mark On Mar 18, 7:14 pm, Derek Engelhaupt tan...@gmail.com wrote: The other issue is that the tube would compress when it bends causing the internal space to compress. How do I know? I was trying to look for a way to feed the top of my gun using a large diameter rubber hose. There are types of hoses that wouldn't do that, but they also don't want to bend very well either. You would need some bend in the tube to compensate for the raising and lowering. I'm having issues fitting my magazine in since the gun of the KV-2 is mounted really high in the turret. My problem is reliably feeding the gun during elevation. 10 degrees isn't that much elevation, but I have a lot of depression on the gun. The difference between the two is causing the issues. I could limit the depression, but I want to be able to hit targets within a couple of feet of the tank. The feed angle that works for the depression of the gun doesn't always work for the raising of the gun and vise versa. At this point, I'm not sure if I'll solve the problem before I have to go off to work in the big sand box (just got a contract job for a year in Afghanistan). Derek T065 On Thu, Mar 18, 2010 at 6:45 PM, Mike Måne mike082...@gmail.com wrote: I'm no expert, but I think it would be very difficult to prevent the ball from bursting on the curve. Even if it happened to survive the journey, it probably will lose so much energy that it simply flings out of the barrel. The best way would be to load the balls into the straight, rigid barrel, rather than anywhere in or before the curved, flexible hose. Do you think you could build a loading mechanism and hopper in the turret? Keep in mind that Article III, Section 1, Line 'f.' of the Rules states that ...The maximum elevation of any paintball marker will be 10 degrees, which isn't much of an elevation, especially if the fulcrum is toward the front of the gun. -Mike M. On 18/03/2010, Mark_123521 gatlinggunm...@sbcglobal.net wrote: Has anyone tried this? I am building one of those low profile modern tanks -- M1A1 Abrams. Theres not much head room in the turret to mount the marker and feed system. Why couldnt a guy mount the paintball marker in the lower hull and shoot the paintball through a hose? The hose would connect to a barrel in the turret and the gun would be mounted under the turret where theres plenty of room? The gun could rotate with the turret or the gun could be fixed mounted and the hose could have a rotary connection. The hose would allow flexability to elevate the gun. I have ordered a lazy Susan turntable with a 6 inch hole in it. This would allow some room to pass the hose through. I have machine tools in the basement and can build about anything to make the hose idea work. Could you shoot the paintball through a hose and not have it break up going through the curves?? Mark -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group athttp://groups.google.com/group/rctankcombat To unsubscribe from this group, send email to rctankcombat+unsubscribegooglegroups.com or reply to this email with the words REMOVE ME as the subject. -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group athttp://groups.google.com/group/rctankcombat To unsubscribe from this group, send email to rctankcombat+ unsubscribegooglegroups.com or reply to this email with the words REMOVE ME as the subject.- Hide quoted text - - Show quoted text - -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group at http://groups.google.com/group/rctankcombat To unsubscribe from this group, send email to rctankcombat+unsubscribegooglegroups.com or reply to this email with the words REMOVE ME as the subject.
[TANKS] Re: Paintball Gun Mounting Question
Derek: WoW thats cool!! But theres no girls and no booze and theres the IED's. We know that your qualified to work on remote control, tracked vehicles -- like bomb defusing robots??!!! I'll bet the pay is fantastic!!! Mark On Mar 18, 7:32 pm, Derek Engelhaupt tan...@gmail.com wrote: Network and computer installations and maintenance on the forward operating bases. Not sure yet on my deployment date. Derek T065 On Thu, Mar 18, 2010 at 7:22 PM, Mark_123521 gatlinggunm...@sbcglobal.netwrote: Derek: I thought Blackwater was out of business! What would you do over there, or cant you tell me without being required to kill me? Mark On Mar 18, 7:14 pm, Derek Engelhaupt tan...@gmail.com wrote: The other issue is that the tube would compress when it bends causing the internal space to compress. How do I know? I was trying to look for a way to feed the top of my gun using a large diameter rubber hose. There are types of hoses that wouldn't do that, but they also don't want to bend very well either. You would need some bend in the tube to compensate for the raising and lowering. I'm having issues fitting my magazine in since the gun of the KV-2 is mounted really high in the turret. My problem is reliably feeding the gun during elevation. 10 degrees isn't that much elevation, but I have a lot of depression on the gun. The difference between the two is causing the issues. I could limit the depression, but I want to be able to hit targets within a couple of feet of the tank. The feed angle that works for the depression of the gun doesn't always work for the raising of the gun and vise versa. At this point, I'm not sure if I'll solve the problem before I have to go off to work in the big sand box (just got a contract job for a year in Afghanistan). Derek T065 On Thu, Mar 18, 2010 at 6:45 PM, Mike Måne mike082...@gmail.com wrote: I'm no expert, but I think it would be very difficult to prevent the ball from bursting on the curve. Even if it happened to survive the journey, it probably will lose so much energy that it simply flings out of the barrel. The best way would be to load the balls into the straight, rigid barrel, rather than anywhere in or before the curved, flexible hose. Do you think you could build a loading mechanism and hopper in the turret? Keep in mind that Article III, Section 1, Line 'f.' of the Rules states that ...The maximum elevation of any paintball marker will be 10 degrees, which isn't much of an elevation, especially if the fulcrum is toward the front of the gun. -Mike M. On 18/03/2010, Mark_123521 gatlinggunm...@sbcglobal.net wrote: Has anyone tried this? I am building one of those low profile modern tanks -- M1A1 Abrams. Theres not much head room in the turret to mount the marker and feed system. Why couldnt a guy mount the paintball marker in the lower hull and shoot the paintball through a hose? The hose would connect to a barrel in the turret and the gun would be mounted under the turret where theres plenty of room? The gun could rotate with the turret or the gun could be fixed mounted and the hose could have a rotary connection. The hose would allow flexability to elevate the gun. I have ordered a lazy Susan turntable with a 6 inch hole in it. This would allow some room to pass the hose through. I have machine tools in the basement and can build about anything to make the hose idea work. Could you shoot the paintball through a hose and not have it break up going through the curves?? Mark -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group athttp://groups.google.com/group/rctankcombat To unsubscribe from this group, send email to rctankcombat+unsubscribegooglegroups.com or reply to this email with the words REMOVE ME as the subject. -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group athttp://groups.google.com/group/rctankcombat To unsubscribe from this group, send email to rctankcombat+ unsubscribegooglegroups.com or reply to this email with the words REMOVE ME as the subject.- Hide quoted text - - Show quoted text - -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group athttp://groups.google.com/group/rctankcombat To unsubscribe from
[TANKS] Re: Paintball Gun Mounting Question
Derek: Sounds like an adventure of a lifetime! Go for it! Mark On Mar 18, 8:59 pm, Derek Engelhaupt tan...@gmail.com wrote: Well, I'm married so that rules out the girl thingand I really don't drink much so that's really not an issue either...;) Robotic work would be out of scope of the contract so I doubt that would happen. Yeah, the pay is good. My wife said that I would never make more than her now that she has her PharmD degree (PhD in pharmacy). I guess she was wrong. :) Derek T065 On Thu, Mar 18, 2010 at 7:46 PM, Mark_123521 gatlinggunm...@sbcglobal.netwrote: Derek: WoW thats cool!! But theres no girls and no booze and theres the IED's. We know that your qualified to work on remote control, tracked vehicles -- like bomb defusing robots??!!! I'll bet the pay is fantastic!!! Mark On Mar 18, 7:32 pm, Derek Engelhaupt tan...@gmail.com wrote: Network and computer installations and maintenance on the forward operating bases. Not sure yet on my deployment date. Derek T065 On Thu, Mar 18, 2010 at 7:22 PM, Mark_123521 gatlinggunm...@sbcglobal.netwrote: Derek: I thought Blackwater was out of business! What would you do over there, or cant you tell me without being required to kill me? Mark On Mar 18, 7:14 pm, Derek Engelhaupt tan...@gmail.com wrote: The other issue is that the tube would compress when it bends causing the internal space to compress. How do I know? I was trying to look for a way to feed the top of my gun using a large diameter rubber hose. There are types of hoses that wouldn't do that, but they also don't want to bend very well either. You would need some bend in the tube to compensate for the raising and lowering. I'm having issues fitting my magazine in since the gun of the KV-2 is mounted really high in the turret. My problem is reliably feeding the gun during elevation. 10 degrees isn't that much elevation, but I have a lot of depression on the gun. The difference between the two is causing the issues. I could limit the depression, but I want to be able to hit targets within a couple of feet of the tank. The feed angle that works for the depression of the gun doesn't always work for the raising of the gun and vise versa. At this point, I'm not sure if I'll solve the problem before I have to go off to work in the big sand box (just got a contract job for a year in Afghanistan). Derek T065 On Thu, Mar 18, 2010 at 6:45 PM, Mike Måne mike082...@gmail.com wrote: I'm no expert, but I think it would be very difficult to prevent the ball from bursting on the curve. Even if it happened to survive the journey, it probably will lose so much energy that it simply flings out of the barrel. The best way would be to load the balls into the straight, rigid barrel, rather than anywhere in or before the curved, flexible hose. Do you think you could build a loading mechanism and hopper in the turret? Keep in mind that Article III, Section 1, Line 'f.' of the Rules states that ...The maximum elevation of any paintball marker will be 10 degrees, which isn't much of an elevation, especially if the fulcrum is toward the front of the gun. -Mike M. On 18/03/2010, Mark_123521 gatlinggunm...@sbcglobal.net wrote: Has anyone tried this? I am building one of those low profile modern tanks -- M1A1 Abrams. Theres not much head room in the turret to mount the marker and feed system. Why couldnt a guy mount the paintball marker in the lower hull and shoot the paintball through a hose? The hose would connect to a barrel in the turret and the gun would be mounted under the turret where theres plenty of room? The gun could rotate with the turret or the gun could be fixed mounted and the hose could have a rotary connection. The hose would allow flexability to elevate the gun. I have ordered a lazy Susan turntable with a 6 inch hole in it. This would allow some room to pass the hose through. I have machine tools in the basement and can build about anything to make the hose idea work. Could you shoot the paintball through a hose and not have it break up going through the curves?? Mark -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group athttp://groups.google.com/group/rctankcombat To unsubscribe from this group, send email to rctankcombat+unsubscribegooglegroups.com or reply to this email
[TANKS] Re: M1A1 ABRAMS -- MORE PROGRESS, MORE PICTURES
Jason: Motors are 450 watt, 24 volt, geared about 7 to 1, maximum RPM = 550 #35 chain drive from the motor to the track drive sprocket is 1 to 1 ratio. The track drive sprocket is 3 inch diameter, with 8 flats. Theres 2 12 volt , 12AH batteries, but I have another set if need them. For another 16 pounds weight, I could have 24 AH capacity. I think final weight will be about 135 pounds with 2 batteries, 150 with 4 batteries. Mark On Mar 14, 11:39 pm, Jason R Schafer jasonrscha...@gmail.com wrote: what are you using for motors? what voltage? what is the reduction from motor to final drive? only one 12 amp hour battery? What do you think the final weight will be? Thanks, Jason On Sun, Mar 14, 2010 at 5:54 PM, Mark_123521 gatlinggunm...@sbcglobal.netwrote: Got some of the sheet metal done this week. Tank hull weighs about 100 pounds, as shown. This thing moves, it can easily spin the tracks on a fast start It tears the heck out of the lawn when you do a full skid turn. It has 12 amp hour batteries in it right now and I ran it hard for 45 minutes - no sign of run down batteries. Installed a 30 amp circuit breaker for on/off control and circuit protection - works good - no trips. You can run it up the trunk of a tree until its higher than 45 degrees!!! I'll start on the turret this week. ME SITTING ON TANK, I ACTUALY TOOK A RIDE The little dog belongs to my daughter. http://i192.photobucket.com/albums/z65/mm123521/Meontank.jpg GOING OVER PARKING LOT BARRIERS: http://www.youtube.com/watch?v=yzLvXVVajUQ http://www.youtube.com/watch?v=BtSAa4eJvgs TANK GOING DOWN A 30 FOOT HILL @ 30 DEGREES ANGLE: http://www.youtube.com/watch?v=2QTgBzeI440 Mark -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group athttp://groups.google.com/group/rctankcombat- Hide quoted text - - Show quoted text - -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group at http://groups.google.com/group/rctankcombat
[TANKS] Re: M1A1 ABRAMS -- MORE PROGRESS, MORE PICTURES
No, not the Interlox plastic track. Home built, from scratch. Started with treadmill belt. Glued (super glue) on 76, 1 inch X 3.75 inch X .187 inch thick, PVC plastic treads. On the inside are 76 aluminum, T shaped track guides, pop rivited on. I built this alignment fixture: http://i192.photobucket.com/albums/z65/mm123521/HPIM0711.jpg http://i192.photobucket.com/albums/z65/mm123521/HPIM0707.jpg http://i192.photobucket.com/albums/z65/mm123521/HPIM0749.jpg 76 + 76 = 152 treads 76 + 76 = 152 machined aluminum track guides 152 + 152 = 304 pop rivits about 60 or 70 hours to build. Mark On Mar 14, 7:00 pm, Saxondog blakebobb...@ymail.com wrote: Hello Mark.are you running the Intralox belting for tracks? It seems they do not grip very well on paved surfaces.Please advise Blake On Mar 14, 5:54 pm, Mark_123521 gatlinggunm...@sbcglobal.net wrote: Got some of the sheet metal done this week. Tank hull weighs about 100 pounds, as shown. This thing moves, it can easily spin the tracks on a fast start It tears the heck out of the lawn when you do a full skid turn. It has 12 amp hour batteries in it right now and I ran it hard for 45 minutes - no sign of run down batteries. Installed a 30 amp circuit breaker for on/off control and circuit protection - works good - no trips. You can run it up the trunk of a tree until its higher than 45 degrees!!! I'll start on the turret this week. ME SITTING ON TANK, I ACTUALY TOOK A RIDE The little dog belongs to my daughter.http://i192.photobucket.com/albums/z65/mm123521/Meontank.jpg GOING OVER PARKING LOT BARRIERS:http://www.youtube.com/watch?v=yzLvXVVajUQhttp://www.youtube.com/watc... TANK GOING DOWN A 30 FOOT HILL @ 30 DEGREES ANGLE:http://www.youtube.com/watch?v=2QTgBzeI440 Mark- Hide quoted text - - Show quoted text - -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group at http://groups.google.com/group/rctankcombat
[TANKS] Re: M1A1 ABRAMS -- MORE PROGRESS, MORE PICTURES
Saxondog: The PVC plastic, when new, is very slippery. After the tracks get run for a while, they get roughed up and the surface has a little better grip. GOING UP A TREE: http://i192.photobucket.com/albums/z65/mm123521/photo.jpg IT HAS GONE A LOT HIGHER THAN IN THE PHOTO. Mark On Mar 14, 7:00 pm, Saxondog blakebobb...@ymail.com wrote: Hello Mark.are you running the Intralox belting for tracks? It seems they do not grip very well on paved surfaces.Please advise Blake On Mar 14, 5:54 pm, Mark_123521 gatlinggunm...@sbcglobal.net wrote: Got some of the sheet metal done this week. Tank hull weighs about 100 pounds, as shown. This thing moves, it can easily spin the tracks on a fast start It tears the heck out of the lawn when you do a full skid turn. It has 12 amp hour batteries in it right now and I ran it hard for 45 minutes - no sign of run down batteries. Installed a 30 amp circuit breaker for on/off control and circuit protection - works good - no trips. You can run it up the trunk of a tree until its higher than 45 degrees!!! I'll start on the turret this week. ME SITTING ON TANK, I ACTUALY TOOK A RIDE The little dog belongs to my daughter.http://i192.photobucket.com/albums/z65/mm123521/Meontank.jpg GOING OVER PARKING LOT BARRIERS:http://www.youtube.com/watch?v=yzLvXVVajUQhttp://www.youtube.com/watc... TANK GOING DOWN A 30 FOOT HILL @ 30 DEGREES ANGLE:http://www.youtube.com/watch?v=2QTgBzeI440 Mark- Hide quoted text - - Show quoted text - -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group at http://groups.google.com/group/rctankcombat
[TANKS] Re: cv9040 progress
Leif: Your work is absolutly amazing You chose a GREAT tank: http://axiomsun.com/home/video/cv9040_tank_with_l70_40mm_cannon.html Mark On Mar 13, 6:07 am, Leif Westermark leif.westerm...@telia.com wrote: the turret is under construction. wide but wery low, only 100mm (4 inch) height inside. its going to be a challange to fit everything inside and make it work. http://i916.photobucket.com/albums/ad6/leffew63/S5002806.jpghttp://i916.photobucket.com/albums/ad6/leffew63/S5002807.jpghttp://i916.photobucket.com/albums/ad6/leffew63/S5002808.jpghttp://i916.photobucket.com/albums/ad6/leffew63/S5002809.jpg Leif. -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group at http://groups.google.com/group/rctankcombat
[TANKS] Re: M1A1 Abrams -- Progress
Ran the heck out of the tank hull. The motors/ controler/ wireing dint even get warm! Did a range test on radio, 100 yards and no problem. Goes over the street curb with ease. Tank running around in front yard: http://www.youtube.com/watch?v=7w2CrUYRtnk http://www.youtube.com/watch?v=aRlCCT8tGsE Mark -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group at http://groups.google.com/group/rctankcombat
[TANKS] Re: M1A1 Abrams -- Progress
Leif: Thanks! Now I have a rolling chassis. Theres tank tracks all over the snow in the back yard. http://www.youtube.com/watch?v=Lze3rpkIMXg Mark -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group at http://groups.google.com/group/rctankcombat
[TANKS] Re: M1A1 Abrams -- Progress
Greg: I posted the next video on U-tube. Is it any better? http://www.youtube.com/watch?v=Lze3rpkIMXg Mark On Mar 4, 9:52 pm, Gregory Kampjes sockles...@gmail.com wrote: Looking good. Just a suggestion, I've generally had a better experience with watching YouTube videos, as they load a lot faster. Also consider having the camera fixed, the video was a bit shaky at times. Regardless, the progress looks good. -Gregory On Fri, Mar 5, 2010 at 3:45 PM, Mark_123521 gatlinggunm...@sbcglobal.netwrote: Another video: It is 16 MB -- may take a while to load The drive gear ratio should produce 5.5 MPH http://s192.photobucket.com/albums/z65/mm123521/?action=view¤t=... Mark -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group athttp://groups.google.com/group/rctankcombat- Hide quoted text - - Show quoted text - -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group at http://groups.google.com/group/rctankcombat
[TANKS] Re: M1A1 Abrams -- Progress
Patron: Yah, its geared to go 5.5 MPH fully loaded. Actual calculations are using the motors no load speed of 550RPM and gives 5.8 MPH, but I know the motors going to slow down when running loaded, and I hope to get 5.5 ?? Mark On Mar 4, 9:55 pm, Patron saintofswitchbla...@tmail.com wrote: Looking good! Is the 5.5 fully built? On Thu, 4 Mar 2010 21:38, Mark_123521 wrote: Got a track on one side! http://i192.photobucket.com/albums/z65/mm123521/HPIM0778.jpg http://i192.photobucket.com/albums/z65/mm123521/HPIM0773.jpg Video of track moving: Its running directly off a 6 volt battery. Hull is blocked from moving forward and track is skidding on the concrete. It is drawing 10 amps. The track running free (lifted off the ground) draws 3.5 amps. Hull as shown weighs 50 pounds + 7 pounds for the single track. http://s192.photobucket.com/albums/z65/mm123521/?action=view¤t=... Mark -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group athttp://groups.google.com/group/rctankcombat We have a little saying in Massachusetts. Maybe one day you'll get horribly sick and die.- Hide quoted text - - Show quoted text - -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group at http://groups.google.com/group/rctankcombat
[TANKS] Re: M1A1 Abrams -- Progress
Derek: I tapped that dryer on the previous run, because both RC channels were backwards. I was surprised it moved. Blew the budget today - bought 4 12 volt 12 AH batteries. That will make 24 volts @ 24 Amp Hours. Next, I need one of those spread spectrum 2.4 ghz , 6 channel radios. Hows your plastic tank going? I dont know how you do it in a cold garage!! Mark On Mar 6, 8:57 pm, Derek Engelhaupt tan...@gmail.com wrote: What did the dryer do to you that you had to beat on it like that? :) Nice work. Seems like a nice quiet runner. Derek T065 On Sat, Mar 6, 2010 at 8:49 PM, Mark_123521 gatlinggunm...@sbcglobal.netwrote: Patron: Yah, its geared to go 5.5 MPH fully loaded. Actual calculations are using the motors no load speed of 550RPM and gives 5.8 MPH, but I know the motors going to slow down when running loaded, and I hope to get 5.5 ?? Mark On Mar 4, 9:55 pm, Patron saintofswitchbla...@tmail.com wrote: Looking good! Is the 5.5 fully built? On Thu, 4 Mar 2010 21:38, Mark_123521 wrote: Got a track on one side! http://i192.photobucket.com/albums/z65/mm123521/HPIM0778.jpg http://i192.photobucket.com/albums/z65/mm123521/HPIM0773.jpg Video of track moving: Its running directly off a 6 volt battery. Hull is blocked from moving forward and track is skidding on the concrete. It is drawing 10 amps. The track running free (lifted off the ground) draws 3.5 amps. Hull as shown weighs 50 pounds + 7 pounds for the single track. http://s192.photobucket.com/albums/z65/mm123521/?action=view¤t=... Mark -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group athttp://groups.google.com/group/rctankcombat We have a little saying in Massachusetts. Maybe one day you'll get horribly sick and die.- Hide quoted text - - Show quoted text - -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group athttp://groups.google.com/group/rctankcombat- Hide quoted text - - Show quoted text - -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group at http://groups.google.com/group/rctankcombat
[TANKS] M1A1 Abrams -- Progress
Got a track on one side! http://i192.photobucket.com/albums/z65/mm123521/HPIM0778.jpg http://i192.photobucket.com/albums/z65/mm123521/HPIM0773.jpg Video of track moving: Its running directly off a 6 volt battery. Hull is blocked from moving forward and track is skidding on the concrete. It is drawing 10 amps. The track running free (lifted off the ground) draws 3.5 amps. Hull as shown weighs 50 pounds + 7 pounds for the single track. http://s192.photobucket.com/albums/z65/mm123521/?action=viewcurrent=HPIM0775.flv Mark -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group at http://groups.google.com/group/rctankcombat
[TANKS] Re: M1A1 Abrams -- Progress
Another video: It is 16 MB -- may take a while to load The drive gear ratio should produce 5.5 MPH http://s192.photobucket.com/albums/z65/mm123521/?action=viewcurrent=HPIM0774.flv Mark -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group at http://groups.google.com/group/rctankcombat
[TANKS] Re: #50 Attachment Chain?
I have priced the Japanise chain @ about $40 per foot. I have priced the import chain (from Peer Chain) @ $20 / foot in 100 foot lots. There is no such thing as $2 chain? Mark On Mar 1, 10:24 pm, Ben Holko b...@holnet.net wrote: One of you guys in the US needs to buy a bunch from China at $2 a foot and on-sell it. Ben From: rctankcombat@googlegroups.com [rctankcom...@googlegroups.com] on behalf of Derek Engelhaupt [tan...@gmail.com] Sent: Tuesday, March 02, 2010 3:02 PM To: rctankcombat@googlegroups.com Subject: Re: [TANKS] #50 Attachment Chain? Right now that's the million dollar question. I'm having no luck finding attachment chain for a decent price too. Derek T065 On Mon, Mar 1, 2010 at 10:00 PM, Jeremy Caylor nighthawk...@gmail.commailto:nighthawk...@gmail.com wrote: Hello everyone! I'm close to getting out of the Marine Corps, and I'm really anxious to get to work on my Tiger again, but I've been thinking a lot about the tracks. Looking at a few tanks on the site that use #50 attachment chain (attachments every other link), I've decided this would be the best for my tank. My only problem is: where do I find the chain? I've searched everywhere but can't find a good source of it without spending a fortune. Does anyone know where I can get some of the chain for a relatively decent price? Thanks! -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.commailto:rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.commailto:rctankcombat-unsubscr...@googlegroups.com Visit the group athttp://groups.google.com/group/rctankcombat -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group athttp://groups.google.com/group/rctankcombat -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group at http://groups.google.com/group/rctankcombat
[TANKS] Re: #50 Attachment Chain?
Ben: Didnt someone here price chain there and they wanted a $2000 minimum order?? Mark On Mar 2, 5:11 pm, Ben Holko b...@holnet.net wrote: There is no such thing as $2 chain? yes there is:www.mccchain.com.tw I bought from there at about USD$2.30 per foot. I dealt with them wholly via email, and a SWIFT transfer for payment. You will need to buy a fair bit though to meet a minimum order, I purchased 40 feet and had to pay an additional $100 minimum order fee. Even with that, and shipping (40 feet of #50 chain is not light!) it was still over $150 cheaper than getting something locally. Ben From: rctankcombat@googlegroups.com [rctankcom...@googlegroups.com] on behalf of Mark_123521 [gatlinggunm...@sbcglobal.net] Sent: Wednesday, March 03, 2010 10:07 AM To: R/C Tank Combat Subject: [TANKS] Re: #50 Attachment Chain? I have priced the Japanise chain @ about $40 per foot. I have priced the import chain (from Peer Chain) @ $20 / foot in 100 foot lots. There is no such thing as $2 chain? Mark On Mar 1, 10:24 pm, Ben Holko b...@holnet.net wrote: One of you guys in the US needs to buy a bunch from China at $2 a foot and on-sell it. Ben From: rctankcombat@googlegroups.com [rctankcom...@googlegroups.com] on behalf of Derek Engelhaupt [tan...@gmail.com] Sent: Tuesday, March 02, 2010 3:02 PM To: rctankcombat@googlegroups.com Subject: Re: [TANKS] #50 Attachment Chain? Right now that's the million dollar question. I'm having no luck finding attachment chain for a decent price too. Derek T065 On Mon, Mar 1, 2010 at 10:00 PM, Jeremy Caylor nighthawk...@gmail.commailto:nighthawk...@gmail.com wrote: Hello everyone! I'm close to getting out of the Marine Corps, and I'm really anxious to get to work on my Tiger again, but I've been thinking a lot about the tracks. Looking at a few tanks on the site that use #50 attachment chain (attachments every other link), I've decided this would be the best for my tank. My only problem is: where do I find the chain? I've searched everywhere but can't find a good source of it without spending a fortune. Does anyone know where I can get some of the chain for a relatively decent price? Thanks! -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.commailto:rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.commailto:rctankcombat-unsubscr...@googlegroups.com Visit the group athttp://groups.google.com/group/rctankcombat -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group athttp://groups.google.com/group/rctankcombat -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group athttp://groups.google.com/group/rctankcombat- Hide quoted text - - Show quoted text - -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group at http://groups.google.com/group/rctankcombat
[TANKS] Re: M1A1 Abrams -- Wide Open Spaces
More progress on the M1A1 ABRAMS: Track drive sprocket with brass bearing: http://i192.photobucket.com/albums/z65/mm123521/HPIM0771.jpg http://i192.photobucket.com/albums/z65/mm123521/HPIM0770.jpg Hull (a nautical term) with induvidaly adjustable front axles http://i192.photobucket.com/albums/z65/mm123521/HPIM0761.jpg http://i192.photobucket.com/albums/z65/mm123521/HPIM0767.jpg http://i192.photobucket.com/albums/z65/mm123521/HPIM0768.jpg http://i192.photobucket.com/albums/z65/mm123521/HPIM0766.jpg http://i192.photobucket.com/albums/z65/mm123521/HPIM0765.jpg I doubled up on suspension springs on one side and need to buy more springs for the remaining side. Now I can stand in the hull (a marine term) and the suspension retracts but does not bottom out. IN A FEW WEEKS I'LL HAVE THE TRACKS TURNING!! Mark K.M.S.M.A. (KISS MY SHINEY METAL POSTERIOR) The crews gave naval terms to the parts of the tank: hatches, hull, bows, bulkheads, fore, and aft. Tod (ex-Navy) ;-) Doesn't surprise me, Clark. Although, I've never accused any of my Marine friends of being smart... :) Sorry, couldn't resist. Derek (ex-Army) T065 -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group at http://groups.google.com/group/rctankcombat
[TANKS] Re: Where to..
I'll never pick up another Wii!!! The last one I used cost me a $3000 check, to cover the 52 TV I through it through!! OOPS! (You gotta remember to use the wrist strap - damn it!) Mark -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group at http://groups.google.com/group/rctankcombat
[TANKS] Re: M1A1 Abrams -- Wide Open Spaces
Phyl: It just looked easier to mount the motors to the hull sidewall. Also, that allows the drive axle to be mounted closer to the hull end (looks more like the real tank) I hope the chain doesnt get fouled with twigs and debris The track drive axle is dead -- it does not rotate. The drive sproket is made of UHMW polyethelene and rotates on the dead axle - no bearings. UHMW polyetheline is a good bearing material itself. Mark On Feb 25, 7:05 am, Phil sasquevane...@aol.com wrote: Looks good Mark. Why did you have an external drive chain as opposed to internal? Phil On Feb 22, 1:53 am, Mark_123521 gatlinggunm...@sbcglobal.net wrote: Made some good progress this week. Built the hull sides, mounted the motors, and installed the drive wheels axle. Built adjustable motor mounts, they have a chain adjustment of about 1/2 inch. Got lots of space in the hull!! http://i192.photobucket.com/albums/z65/mm123521/HPIM0753.jpg http://i192.photobucket.com/albums/z65/mm123521/HPIM0755.jpg http://i192.photobucket.com/albums/z65/mm123521/HPIM0756.jpg http://i192.photobucket.com/albums/z65/mm123521/HPIM0757.jpg Mark- Hide quoted text - - Show quoted text - -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group at http://groups.google.com/group/rctankcombat
[TANKS] Re: M1A1 Abrams -- Wide Open Spaces
Steve: When we get into battle, I'am gonna paint a sign on the rear of my aluminum tank, just for you. Bite My Shiney Metal Ass :-) :-) I'am about 2 weeks away from a rolling Chassis Got the front axles and track tensioning built (it has individual tensioning for the port and starboard tracks). By the end of the weekend, I'll have the drive axle and drive sprockets installed. Whens the first battle of the season Mark B.M.S.M.A Mark On Feb 25, 11:22 am, Steve Tyng steve...@gmail.com wrote: Mark, I want to thank you for considering my worsening eyesight in the construction of your overly large target I mean tank. A paint scheme in neon orange would be appreciated! ;-) Steve Tyng On Feb 21, 8:53 pm, Mark_123521 gatlinggunm...@sbcglobal.net wrote: Made some good progress this week. Built the hull sides, mounted the motors, and installed the drive wheels axle. Built adjustable motor mounts, they have a chain adjustment of about 1/2 inch. Got lots of space in the hull!! http://i192.photobucket.com/albums/z65/mm123521/HPIM0753.jpg http://i192.photobucket.com/albums/z65/mm123521/HPIM0755.jpg http://i192.photobucket.com/albums/z65/mm123521/HPIM0756.jpg http://i192.photobucket.com/albums/z65/mm123521/HPIM0757.jpg Mark- Hide quoted text - - Show quoted text - -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group at http://groups.google.com/group/rctankcombat
[TANKS] Re: M1A1 Abrams -- Wide Open Spaces
Chris: Old habit, I used to be an officer on a ship in the Pacific Ocean. Mark On Feb 27, 9:22 pm, odysseyslipw...@aol.com wrote: In a message dated 2/27/2010 10:05:34 P.M. Eastern Standard Time, gatlinggunm...@sbcglobal.net writes: Got the front axles and track tensioning built (it has individual tensioning for the port and starboard tracks). your building a tank, not a ship... Chris, _Odyssey Slipways_ (http://hometown.aol.com/odysseyslipways/index.html) -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group at http://groups.google.com/group/rctankcombat
[TANKS] M1A1 Abrams -- Wide Open Spaces
Made some good progress this week. Built the hull sides, mounted the motors, and installed the drive wheels axle. Built adjustable motor mounts, they have a chain adjustment of about 1/2 inch. Got lots of space in the hull!! http://i192.photobucket.com/albums/z65/mm123521/HPIM0753.jpg http://i192.photobucket.com/albums/z65/mm123521/HPIM0755.jpg http://i192.photobucket.com/albums/z65/mm123521/HPIM0756.jpg http://i192.photobucket.com/albums/z65/mm123521/HPIM0757.jpg Mark -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group at http://groups.google.com/group/rctankcombat
[TANKS] Re: KV-2 update
Derek: Nice work!! That PVC plastic is cool stuff, strong, glues easly, cuts nice, impact resistant, and I see it bends well. It looks like a good choice for building a tank. Your plastic tank is looking good! How hard was it to get good bends for your turret? How did you heat it for the bends? Mark On Feb 20, 11:34 am, Derek Engelhaupt tan...@gmail.com wrote: whoops...sage=sag Derek On Sat, Feb 20, 2010 at 11:33 AM, Derek Engelhaupt tan...@gmail.com wrote: Phil the tracks weren't connnected, so they don't sage quite so much when they are. The attachment chain tracks can sage since they do not come off the sprockets. Yes, it is an ugly tank, but it does have tons of room. I'll easily get a 20oz. CO2 bottle in there to feed the gun. Chris, yes that is frost. We are renting a place on a lake since we had to move for my wife to find work. Still haven't sold our house way up north. This place has a detached 3 stall garage with no heat. My garage in my house was attached and heated. Boy I miss it. It was about 10 degrees outside last night when I was working. I only have a dual head sunflower type portable LP heater that I use. It can bring the temp up in the garage to about 40 degrees after a couple of hours. I work wearing my Carhart pants, jacket, insulated hunting boots, ski hat, and gloves. Not sure why anyone in their right mind would install new garage doors in MN that aren't insulated. I put up plastic sheeting between the stalls so I'm only heating the one stall. As far as the velcro is concerned, I put a strip all the way across both the front and rear edge of the top. The top is very snug since I rough cut the shape and hand fitted it to the top by sanding the edges on a belt sander. It was a lot of work, but I wanted the seal tight to keep paint out. Derek T065 On Sat, Feb 20, 2010 at 9:34 AM, odysseyslipw...@aol.com wrote: is that a bad case of frost on the garage door? looks good in plastic as to the lid, how much velco did you use? Chris, Odyssey Slipways http://hometown.aol.com/odysseyslipways/index.html -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group athttp://groups.google.com/group/rctankcombat- Hide quoted text - - Show quoted text - -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group at http://groups.google.com/group/rctankcombat
[TANKS] Re: Motor Controllers
Fred: After you brought up wheelchair controllers, I did some looking around. Check out curtis controller on EBAY or curtis instruments on the web. They make controllers for mobility scooters all the way up to electric fork truck controllers (400 amps!!!). I go to a local scrapyard to get materials for my projects. I know they have at least 3 or 4 of the big fork truck controlers (on fork trucks)in there. They are too big for our tanks, but I can buy them for $10 each and sell on EBAY for over $100. Just a way to finance this expensive hobby! Mark On Feb 10, 4:33 pm, Fred Thomson f...@thomson-online.org wrote: Mark, I was pretty disappointed with the initial performance and started digging around with the settings. It was a big suprise at the amount of speed you can get. What is really neat is that you can program your turns. :-) Honestly, I don't know which one would be good or bad. I've got three now, though. :-) On Feb 8, 6:57 pm, Mark_123521 gatlinggunm...@sbcglobal.net wrote: Fred: Sounds like your on to something! I would have never guessed they were programmable. It's ideal, a two channel, 24 volt, high current, programable, motor controler! What brand is good? Mark On Feb 8, 10:19 am, Fred Thomson f...@thomson-online.org wrote: Hi Mark, The interesting thing about wheelchair controllers is they are programmable. Most are setup ultra conservative form the factory or dealer. The joystick is programmed with a delay so that accidental activation does not launch the chair like a race car, this can be reset. The motors are typically set to 50 to 70% of max rpm as well as 50 to 60% torque for forward speed and less for reverse. The are also set to reach max rpm very gradually. Braking can be setup to either coast to a stop or slam to a stop. Turning is also setup conservatively. In the test I did, I rest all the values for top speed (both in High and Low range), turning, and acceleration to their respective max values. I then set the braking to 10%. This worked wonders as the motors now have no delay once the joystick is pushed forward and hit max rpm in about 2 seconds. Fully proportional speed control. :-) I have thought about controlling the POTS directly but I am unsure how to do this (still searching the internet, tho) and I am leery about ripping apart the joystick as I don't have a spare in case (when?) I screw it up. I thought that for proof-of-concept using a mechanical joystick control will do. The real trick to all this is either getting a programming unit with the controller or sweet-talking the nearest dealer into it. The dealer may refuse due to liability issues as he only has your word it won't go into a chair and injure the occupant or someone else. I imagine if you show up with it INSTALLED in a tank they *might* accommodate you. Otherwise, your choices are limited to finding someone with the programming unit for your controller or biting the bullet and buying one, which can be as much as the cost of a speed controller. Fortunately, one of the speed controllers came with the programming unit. I bought two de-commissioned power wheelchairs, for less than the fuel to go 40km to pick them up, with the understanding that they would not be repaired and sold. Both were fully functional, even the batteries are good. Cheers, Fred- Hide quoted text - - Show quoted text - -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group at http://groups.google.com/group/rctankcombat
[TANKS] Re: Road Wheels and Suspension
Steve: Those are electric bicicle motors, 450 watts, 24 volts. http://www.electricscooterparts.com/motors.html#top They have a 7 or 8 to 1 gearing built in. 550 RPM and 4.5 inch pounds of torque per amp. Mark On Feb 17, 12:11 pm, steveh ste...@avdesigners.com wrote: Mark, what kind of motors are those in the pictures? Thank You On Feb 11, 10:08 pm, Mark_123521 gatlinggunm...@sbcglobal.net wrote: Check out the progress. I have just completed a bar with my suspension and road wheels. The suspension has a travel of 1.25 inches. Each wheel has an initial force of 10 pounds and a fully retracted force of 14 pounds. See how the road wheels engage the track guide tabs. http://i192.photobucket.com/albums/z65/mm123521/HPIM0726.jpg http://i192.photobucket.com/albums/z65/mm123521/HPIM0725.jpg http://i192.photobucket.com/albums/z65/mm123521/HPIM0724.jpghttp://i1... Mark- Hide quoted text - - Show quoted text - -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group at http://groups.google.com/group/rctankcombat
[TANKS] Re: Road Wheels and Suspension
Steve: This is my first tank,so I am not an expert. For goning in a straight line it should not take a big motor, but a pivot-in-place type turn is another situation. A Pivot-in-place turn is going to take a LOT of torque. My setup will produce about 80 pounds of force at the track (without overloading the motor too much). My tank will weigh about 150 pounds. Hopefully, 80 pounds will be enough to pivot-in-place. The force you get on the track is the inch pounds torque of the motor times the final drive ratio and divided by the radus (in inches) of the track drive sprocket. My tank: track drive sprocket = 1.5 inch radius full load motor torque = 84 inch pounds Final drive ratio = 1 force on the track = 84 inch pounds X 1 divided by 1.5 = 56 pounds If I overload the motor by 40% then I end up with about 80 pounds force on the track. I am hoping that will be enough to skid turn (pivot-in-place). A 175 pound tank will be harder to skid turn than a 150 pound tank. A lighter tank will turn easier. The way I fiuure it, my 150 pound tank has 75 pounds sitting on each track. With 75 pounds on the track, can 80 pounds force on the track make it skid? If I change the final drive gear ratio to 2 to 1 then I could get 2 X 80 pounds = 160 pounds force on the track. The trade off is it also cuts the top speed in half. Anyway, all of this is just mathamatical guess (bull s---t). I have my fingers crossed that these motors (and the final drive ratio track sprocket size) will work OK. The other guys here could answer your question better than me. Mark On Feb 17, 4:32 pm, steveh ste...@avdesigners.com wrote: Mark, thanks for the response. Since I am not sure about the torque, let me see if you can answer my question. The unit I am building Is projected to weigh in at around 175lbs. I only need to be able to achieve a speed a little faster then walking. Do you think that motor would be sufficient? Thanks Steve On Feb 17, 5:11 pm, Mark_123521 gatlinggunm...@sbcglobal.net wrote: Steve: Those are electric bicicle motors, 450 watts, 24 volts. http://www.electricscooterparts.com/motors.html#top They have a 7 or 8 to 1 gearing built in. 550 RPM and 4.5 inch pounds of torque per amp. Mark On Feb 17, 12:11 pm, steveh ste...@avdesigners.com wrote: Mark, what kind of motors are those in the pictures? Thank You On Feb 11, 10:08 pm, Mark_123521 gatlinggunm...@sbcglobal.net wrote: Check out the progress. I have just completed a bar with my suspension and road wheels. The suspension has a travel of 1.25 inches. Each wheel has an initial force of 10 pounds and a fully retracted force of 14 pounds. See how the road wheels engage the track guide tabs. http://i192.photobucket.com/albums/z65/mm123521/HPIM0726.jpg http://i192.photobucket.com/albums/z65/mm123521/HPIM0725.jpg http://i192.photobucket.com/albums/z65/mm123521/HPIM0724.jpghttp://i1... Mark- Hide quoted text - - Show quoted text -- Hide quoted text - - Show quoted text -- Hide quoted text - - Show quoted text - -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group at http://groups.google.com/group/rctankcombat
[TANKS] Re: Road Wheels and Suspension
Steve: To figure out how fast your tank will go: take the diameter of your track drive sprocket and multiply by 3.14 and that gives you the distance the tank will move for each revolution of the drive sprocket. Track sprocket diameter(in inches) X 3.14 = inches the tank will travel for each revolution of the sprocket. For my tank: track sprocket diameter = 3 inches 3 x 3.14 = 9.42 inches per revolution of the sprocket. my motor goes 550 RPM, so the tank will go 9.42 inches 550 times each minute 9.42 X 550 = 5181 inches in a minute 5181 inches X 60 minutes per hour = 310860 inches per hour 310860 inches per hour divided by 12 inches per foot = 25905 feet per hour 25905 feet per hour divided by 5280 feet per mile = 4.9 miles per hour So my tank should go about 4.9 miles per hour. Just more mathamatical B.S. Mark On Feb 17, 4:32 pm, steveh ste...@avdesigners.com wrote: Mark, thanks for the response. Since I am not sure about the torque, let me see if you can answer my question. The unit I am building Is projected to weigh in at around 175lbs. I only need to be able to achieve a speed a little faster then walking. Do you think that motor would be sufficient? Thanks Steve On Feb 17, 5:11 pm, Mark_123521 gatlinggunm...@sbcglobal.net wrote: Steve: Those are electric bicicle motors, 450 watts, 24 volts. http://www.electricscooterparts.com/motors.html#top They have a 7 or 8 to 1 gearing built in. 550 RPM and 4.5 inch pounds of torque per amp. Mark On Feb 17, 12:11 pm, steveh ste...@avdesigners.com wrote: Mark, what kind of motors are those in the pictures? Thank You On Feb 11, 10:08 pm, Mark_123521 gatlinggunm...@sbcglobal.net wrote: Check out the progress. I have just completed a bar with my suspension and road wheels. The suspension has a travel of 1.25 inches. Each wheel has an initial force of 10 pounds and a fully retracted force of 14 pounds. See how the road wheels engage the track guide tabs. http://i192.photobucket.com/albums/z65/mm123521/HPIM0726.jpg http://i192.photobucket.com/albums/z65/mm123521/HPIM0725.jpg http://i192.photobucket.com/albums/z65/mm123521/HPIM0724.jpghttp://i1... Mark- Hide quoted text - - Show quoted text -- Hide quoted text - - Show quoted text -- Hide quoted text - - Show quoted text - -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group at http://groups.google.com/group/rctankcombat
[TANKS] Re: Road Wheels and Suspension
Derek Clark: Ok, I get it. Thanks for the advice!. I allready have $30 into springs. May have to invest more. The lever arms are drilled for 2 springs, but I would need to add another anchor screw to hold the other end of the spring. I better do that now while it is easy to work on the suspension bar. What about ground clearence? Any thoughts?? Mark On Feb 16, 4:56 am, Clark Ward Jr ki4...@gmail.com wrote: Also, when you hit a bump, the front springs take a bunch of load. -- Clark in Georgia -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group at http://groups.google.com/group/rctankcombat
[TANKS] Re: Road Wheels and Suspension
Thanks Clark! On Feb 16, 9:52 am, Clark Ward Jr ki4...@gmail.com wrote: My sherman (not yet rolling) has 2 inches maybe 2.5 of ground clearance when loaded. -- Clark in Georgia -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group at http://groups.google.com/group/rctankcombat
[TANKS] Re: Road Wheels and Suspension
The bottom hull plate is .093 inch thick aluminum. The ends need to be bent up. A buddy of mine is loaning a sheet metal brake tomorrow. The motors are 450 watt, geared. 550 RPM. The white drive sprockets will run on fixed axle shafts. So far I have: motors motor controler Radio Track drive and Idler sprockets Motor sprockets and chain Suspension system with road wheels. Tracks (but not spliced into a loop) Aluminum hull bottom .093 thick (needs to be bent) Aluminum plate for the hull sides - .125 thick (but not cut yet) Aluminum plate for the hull top - .093 thick (but not cut and bent) I still gotta buy batteries,- waiting to see how uch room I have in the hull. Four 9AH batteries will fit 2 wide and 2 deep. Looks like two 18AH batteries will not fit 2 wide, so they will take up too much space. I WILL make battles this summer! Mark On Feb 15, 8:32 pm, Mark_123521 gatlinggunm...@sbcglobal.net wrote: Derek: I have 16 road wheels, each with an initial force of 10 pounds. That should support 160 pounds tank weight. I hope it doesnt get over that!!?? There are extra holes in the lever arms so I can double up on the springs, if needed. Cut the hull bottom yesterday. Check out the pictures, the suspension bars temporarly clamped to the hull bottom. I'll have the rolling chassis in about 3 weeks or so. What is a good ground clearance Scale is 2.7 inches ground clearance. The width of the hull is 12 inches, measured from inside of track to inside of track. Overall width is 20.5 inches. Overall length is 42 inches. http://i192.photobucket.com/albums/z65/mm123521/HPIM0737.jpg http://i192.photobucket.com/albums/z65/mm123521/HPIM0735.jpg http://i192.photobucket.com/albums/z65/mm123521/HPIM0734.jpg http://i192.photobucket.com/albums/z65/mm123521/HPIM0737.jpg http://i192.photobucket.com/albums/z65/mm123521/HPIM0733.jpg http://i192.photobucket.com/albums/z65/mm123521/HPIM0749.jpg http://i192.photobucket.com/albums/z65/mm123521/HPIM0746.jpg http://i192.photobucket.com/albums/z65/mm123521/HPIM0738-1.jpg http://i192.photobucket.com/albums/z65/mm123521/HPIM0729.jpg Mark On Feb 12, 1:16 am, Derek Engelhaupt tan...@gmail.com wrote: Looks good Mark, but I think you will find that those springs might be a tad bit weak by the time you get the hull and batteries loaded on them. Getting the spring tension correct on a suspended tank is a bit of a PITA. I have found that I always need springs that are stronger than the ones I have :) Derek T065 On Thu, Feb 11, 2010 at 9:08 PM, Mark_123521 gatlinggunm...@sbcglobal.netwrote: Check out the progress. I have just completed a bar with my suspension and road wheels. The suspension has a travel of 1.25 inches. Each wheel has an initial force of 10 pounds and a fully retracted force of 14 pounds. See how the road wheels engage the track guide tabs. http://i192.photobucket.com/albums/z65/mm123521/HPIM0726.jpg http://i192.photobucket.com/albums/z65/mm123521/HPIM0725.jpg http://i192.photobucket.com/albums/z65/mm123521/HPIM0724.jpg http://i192.photobucket.com/albums/z65/mm123521/HPIM0706.jpg Mark -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group athttp://groups.google.com/group/rctankcombat-Hide quoted text - - Show quoted text -- Hide quoted text - - Show quoted text - -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group at http://groups.google.com/group/rctankcombat
[TANKS] Road Wheels and Suspension
Check out the progress. I have just completed a bar with my suspension and road wheels. The suspension has a travel of 1.25 inches. Each wheel has an initial force of 10 pounds and a fully retracted force of 14 pounds. See how the road wheels engage the track guide tabs. http://i192.photobucket.com/albums/z65/mm123521/HPIM0726.jpg http://i192.photobucket.com/albums/z65/mm123521/HPIM0725.jpg http://i192.photobucket.com/albums/z65/mm123521/HPIM0724.jpg http://i192.photobucket.com/albums/z65/mm123521/HPIM0706.jpg Mark -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group at http://groups.google.com/group/rctankcombat
[TANKS] Re: Motor Controllers
Fred: Sounds like your on to something! I would have never guessed they were programmable. It's ideal, a two channel, 24 volt, high current, programable, motor controler! What brand is good? Mark On Feb 8, 10:19 am, Fred Thomson f...@thomson-online.org wrote: Hi Mark, The interesting thing about wheelchair controllers is they are programmable. Most are setup ultra conservative form the factory or dealer. The joystick is programmed with a delay so that accidental activation does not launch the chair like a race car, this can be reset. The motors are typically set to 50 to 70% of max rpm as well as 50 to 60% torque for forward speed and less for reverse. The are also set to reach max rpm very gradually. Braking can be setup to either coast to a stop or slam to a stop. Turning is also setup conservatively. In the test I did, I rest all the values for top speed (both in High and Low range), turning, and acceleration to their respective max values. I then set the braking to 10%. This worked wonders as the motors now have no delay once the joystick is pushed forward and hit max rpm in about 2 seconds. Fully proportional speed control. :-) I have thought about controlling the POTS directly but I am unsure how to do this (still searching the internet, tho) and I am leery about ripping apart the joystick as I don't have a spare in case (when?) I screw it up. I thought that for proof-of-concept using a mechanical joystick control will do. The real trick to all this is either getting a programming unit with the controller or sweet-talking the nearest dealer into it. The dealer may refuse due to liability issues as he only has your word it won't go into a chair and injure the occupant or someone else. I imagine if you show up with it INSTALLED in a tank they *might* accommodate you. Otherwise, your choices are limited to finding someone with the programming unit for your controller or biting the bullet and buying one, which can be as much as the cost of a speed controller. Fortunately, one of the speed controllers came with the programming unit. I bought two de-commissioned power wheelchairs, for less than the fuel to go 40km to pick them up, with the understanding that they would not be repaired and sold. Both were fully functional, even the batteries are good. Cheers, Fred -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group at http://groups.google.com/group/rctankcombat
[TANKS] Re: Motor Controllers
Fred: Dont those wheelchair motors turn too slow? Most of the ones I see are 120 RPM -- a little slow for a tank? The controler should be plenty big enough for a tank. Could you remove the pots from the joystick control and drive the pot directly (rotational) by the servo? It might give better control than operating the joystick from levers. I see wheelchair controlers on Ebay all the time, and much cheeper than buying a dual channel proportional controller. Figure it out for all of us! Mark On Feb 7, 11:31 am, Fred Thomson f...@thomson-online.org wrote: The progress on this is going ok. The first thing to do was to make sure all these used electronics were working. Having done that I set about doing a rough design of the joystick control. I know I can remove th joystick and control the POTS directly with the servos but that will have to wait till Version Two Point Oh. Even managed to get some batteries. :-) http://groups.google.com/group/rctankcombat/web/Ariete_Joystick.jpg?h... Although I have scads of room in the hull of the Ariete, I wanted to use a smaller controller. One of the ones we had fit this requirement. The Pilot+ motor controller is a mere 180mm (7) L x 95mm (3.7) W x 46mm (1.8) H and has no special mounting requirements. The joystick (is the approx shape in the jpeg) is 158mm (6.2) L x 77mm (3.0) W x 151 (5.9) H but this can be reduced by quite a lot by merely relocating the electronics to a custom made box. The biggest surprise was the motors. Right angle gear head with a beautiful 3/4 diameter keyed shaft. This means I can mount the drive hubs directly to the shafts. I will post the motor specs later. Even managed to get some batteries. Cheers, Fred -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group at http://groups.google.com/group/rctankcombat
[TANKS] Re: Possible source for new electric motors
Those bums are only doing it for the $105,000,000 government grant! We are still waiting for the volt - the most hyped up car in the history of automaking. I am sure it will be a disapointment -- The main limitation on electric cars is not the motor, its the battery. No battery exists today that will go far enough or last longenough for the automotive application. I am waiting for someone to develop the Electric motor in the wheel hub concept. You get true 4 wheel drive, regenerative breaking, anti-lock breaking, and stability control in one package. Mark On Jan 26, 3:04 pm, copperhead martin.hels...@earthlink.net wrote: This looks promising but the cost and/or scale may be an issue ... http://money.cnn.com/2010/01/26/autos/gm_electric_motors/index.htm?hp... :D -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group at http://groups.google.com/group/rctankcombat
[TANKS] Building Tracks is a Lot of Work
Building tracks for y M1A1 Abrams. Using treadmill belt. Cut the track guides out of an aluminum extrusion. The treads are cut from .187 PVC sheet and are 1 inch X 3.75 inches. The treads and track guides are super glued and pop rivited to the treadmill belt. Sure wish I could find some attachment chain - This takes a lot of time! See the tread spacing jig I built from 1/2 inch thick clear lexan. http://i192.photobucket.com/albums/z65/mm123521/HPIM0703.jpg http://i192.photobucket.com/albums/z65/mm123521/HPIM0700.jpg http://i192.photobucket.com/albums/z65/mm123521/HPIM0702.jpg http://i192.photobucket.com/albums/z65/mm123521/HPIM0690.jpg -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group at http://groups.google.com/group/rctankcombat
[TANKS] Building Tracks is a Lot of Work and Money
Alluminum extrusion = $ 28 (from the scrap yard) Tread mill belt = $ 16 (off EBAY) PVC sheet (treads) = $ 60 (from Grangers Industrial supply) Super glue = $ 20 Pop rivits = $ 20 TOTAL=$144.00 I have 50 hours of construction time so far, and another 30 or so to complete. Yesterday, I bought a used, RoboteQ, AX2550 dual channel, 120 amp, motor controler. Got the suspension system figured out and prototyped, but not built. http://i192.photobucket.com/albums/z65/mm123521/HPIM0705.jpg http://i192.photobucket.com/albums/z65/mm123521/HPIM0706.jpg I got 2, 450 watt, geared scooter motors. http://i192.photobucket.com/albums/z65/mm123521/yhst-92821211804676_2083_16903969.jpg MARK -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group at http://groups.google.com/group/rctankcombat
[TANKS] Building track - pictures
Watching Kelley's Heros (you know Shermans vs. Tigers) on TV and assembling track. http://i192.photobucket.com/albums/z65/mm123521/HPIM0711.jpg http://i192.photobucket.com/albums/z65/mm123521/HPIM0707.jpg http://i192.photobucket.com/albums/z65/mm123521/HPIM0710.jpg I got 70 inches of track built. I need 90 inches times two sides. Mark -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group at http://groups.google.com/group/rctankcombat
[TANKS] Re: newbie alert!
Dave: I bought these motors: http://www.monsterscooterparts.com/24-volt-450-watt-brushless-electric-motor-9-tooth-chain-sprocket.html I did some testing and they produce 4.5 inch pounds torque per amp. They are rated at 19 amps, so they will produce about 80 inch pounds at full 450 watt rating. I am changing the sprockets to a heavier #35 chain. Mark On Jan 20, 1:53 pm, thenephili...@hotmail.com thenephili...@hotmail.com wrote: Hi All Well my Tamiya completely failed to arrive =( So I have been studying the archives and the build pictures for ideas and to get some sort of reference on materials and how strength and lightness of build can be implemented. So my thoughts so far. Hull/Chassis = The base panel in 1/2ply. Front rear and sides in 1/4. 1/4 Doublers to beef up corners and where the suspension ends fit in the hull sides. Formers to partition the space and add torsional rigidity to the hull. The formers will be 'holed' to reduce weight. Top = 4mm ply with 6mm doubler 'ring' for the hole where the turret will sit. Turret = 6mm Base and the rest in 3mm ply unless I bite the bullet and have ago at a fibreglass molding (possibly) Wheels = Wood, laminated for simple detail with the possibility of doing an ABS detail molding (possibly) I am going for the friction drive method with the 'belt' type tracks. Overall I intend to build the 'whole' without detail. If it gets that far and works then detail pieces can be added. Now I have been trawling for motors ideas but could do with a bit of a steer as in what are you using, where did you get it, are they readily available and this is within the UK please. I am looking for 12V motors and I have found some 12V ones but have no idea as to their physical size but I do know they aren't geared so this is also something that needs considering as space for gearing may be needed and this will have a bearing on the scale of the build and or the internal layout of the hull structure to suit. carry on sanding! Dave On Jan 19, 8:18 pm, thenephili...@hotmail.com thenephili...@hotmail.com wrote: Now that is a smart idea =D Along similar lines I import PCB patterns into my circuit design software. Trace over it with the tracks and then adjust or 'redesign' the circuit layout to suit my needs/ preferences before getting 'my' version printed for toner transfer. I have a scanner up in the attic I may dig it out and see what I can do. regards Dave On Jan 19, 8:10 pm, Morgan, John jmor...@greeley-hansen.com wrote: I just scan in the sprues and then scale the scans up in CAD. I can then trace them (in CAD) to make a pattern and then adjust it as necessary due to materials, size etc. See my Sherman HVSS sprue attached. The higher the resolution, the easier it is to scale. Regards, John -Original Message- From: rctankcombat@googlegroups.com [mailto:rctankcom...@googlegroups.com] On Behalf Of thenephili...@hotmail.com Sent: Tuesday, January 19, 2010 3:04 PM To: R/C Tank Combat Subject: [TANKS] Re: newbie alert! Thanks for all the info Chaps! I spy 'inexpensive' markers =D An hours running and firing seems adequate. I presume that using PWM speed controllers would give a significant increase, subject to driving style, in duration? I don't think I can afford the PWM method anyway but out of interest.. With reference to 'tweaking' the scale of portions of the build to suit hardware needs this was used quite a bit with some of the builds (R/C Aircraft) to help with the 'moments' and fitting the glow motors. It's amazing what you can get away withunless the local 'rivet counter' happens to be in the area =D My Tamiya Challenger failed to arrive today and I had my digi calipers, steel rule and protractor ready =D =( regards Dave On Jan 19, 7:20 pm, neroc funkyne...@ntlworld.com wrote: Just popping my head up from the sweat and toil of working on phil`s Hetzer ;0) (To57 for those who dont know) . A general ballpark answer to your battery question Dave , in the battles I have been involved in where a 12v tank is used , in this case my Marder ( To68 ) .One 18 Amp hour will easly last one hour long battle , possibly longer ,much depends on the way you battle ,personaly I tend to speed to a safe place and then stay there till i see fit to move on. not everyone is the same . I use pairs of 7 or 12 Amp hour batteries at 24 v in my Leopard ( To51 ) but if I build another Tank it will be designed to hold 18amp hour batteries because they can be charged quicker ( High amp chargers dammage smaller AH batteries im told ). a rough price rule of thumb is £10 per 6 Amp hour at 12v Redarding fitting Paintball markers and gravity feed trays into the turrets of 3 feet tanks , I just made me Leopard turret a little taller than it should be when I
[TANKS] Re: #2060 attachment chain
It's on ebay, listed as: Rexnord Table Top Chain SS 1864AK3-1/2 ASSY w/SSTP NIB! I just bought 20 feet for $113.00 shipped. I'll see how it works! http://pt.rexnord.com/products/e-catalog/sproducts.aspx?srch=1864AK3-1/4 http://pt.rexnord.com/products/e-catalog/sproducts.aspx? srch=1864AK3-... chtype=2srchscope=Keyword srchtype=2srchscope=Keyword It is #60 carbon steel chain with a snap on stainless steel table top. It is 3.25 inch wide and weighs 2.5 pounds per foot - TOO HEAVY Over 100 feet of this stuff is available for about $65 / 10 foot box - shipped. Mark On Jan 6, 8:22 pm, Mike Mangus mikem5...@yahoo.com wrote: 2.5 pounds per foot. A single track for the Merkava would weigh somewhere around 22.5 pounds. Both tracks together would be 45 pounds! From: Clark Ward Jr ki4...@gmail.com To: rctankcombat@googlegroups.com Sent: Wed, January 6, 2010 9:09:28 PM Subject: Re: [TANKS] Re: #2060 attachment chain Is it too heavy? Will the “snap-on” table top pop off in use? Will it dig in and not slip sideways on a turn? 1) Heavy? Meh. More POWER, Igor!! 2) If the table snaps off too easily, I'm betting a quick afternoon of the wire-feed welder's gentle caress will fix that. 3) Good question. If someone coordinates, I can send a check or USPS money order for 20 feet worth, today. :) -- Clark in Georgia -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group athttp://groups.google.com/group/rctankcombat -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group at http://groups.google.com/group/rctankcombat
[TANKS] Re: #2060 attachment chain
Additional information: Specifications on table top chain on ebay: http://pt.rexnord.com/products/e-catalog/sproducts.aspx?srch=1864AK3-1/4srchtype=2srchscope=Keyword It's on ebay, listed as: Rexnord Table Top Chain SS 1864AK3-1/2 ASSY w/SSTP NIB! Mark On Jan 6, 10:12 pm, Mark_123521 gatlinggunm...@sbcglobal.net wrote: It's on ebay, listed as: Rexnord Table Top Chain SS 1864AK3-1/2 ASSY w/SSTP NIB! I just bought 20 feet for $113.00 shipped. I'll see how it works! http://pt.rexnord.com/products/e-catalog/sproducts.aspx?srch=1864AK3-1/4 http://pt.rexnord.com/products/e-catalog/sproducts.aspx? srch=1864AK3-... chtype=2srchscope=Keyword srchtype=2srchscope=Keyword It is #60 carbon steel chain with a snap on stainless steel table top. It is 3.25 inch wide and weighs 2.5 pounds per foot - TOO HEAVY Over 100 feet of this stuff is available for about $65 / 10 foot box - shipped. Mark On Jan 6, 8:22 pm, Mike Mangus mikem5...@yahoo.com wrote: 2.5 pounds per foot. A single track for the Merkava would weigh somewhere around 22.5 pounds. Both tracks together would be 45 pounds! From: Clark Ward Jr ki4...@gmail.com To: rctankcombat@googlegroups.com Sent: Wed, January 6, 2010 9:09:28 PM Subject: Re: [TANKS] Re: #2060 attachment chain Is it too heavy? Will the “snap-on” table top pop off in use? Will it dig in and not slip sideways on a turn? 1) Heavy? Meh. More POWER, Igor!! 2) If the table snaps off too easily, I'm betting a quick afternoon of the wire-feed welder's gentle caress will fix that. 3) Good question. If someone coordinates, I can send a check or USPS money order for 20 feet worth, today. :) -- Clark in Georgia -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group athttp://groups.google.com/group/rctankcombat- Hide quoted text - - Show quoted text - -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group at http://groups.google.com/group/rctankcombat
[TANKS] Re: #2060 attachment chain
I need about 18 feet also. I called tsubaki (http://www.ustsubaki.com/) a week ago. They make chain. Their list price was $47 per foot !! WHAT??? Too expensive for me!! -- gotta find some used chain. Mark On Jan 4, 12:44 pm, amigaman andyman61...@yahoo.com wrote: Looking to get some of this type of chain Can anyone point me in the right direction with a reasonable cost. Need enough for 66 tracks total. Andy -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group at http://groups.google.com/group/rctankcombat
[TANKS] Re: Rubber for Wheels
heres some gum rubber tubing from McMaster Carr Supply: http://www.mcmaster.com/#gum-rubber-tubing/=58f32j Mark On Jan 4, 10:30 am, Morgan, John jmor...@greeley-hansen.com wrote: Hi all, I nearly have the suspension done for the Sherman. I need to get rubber for the wheels. The wheels are 2.75 in diameter and 1.25 in width. I would love to get an elastic band so the rubber would be seamless, but have had no luck finding such. If any of you have ideas, let me know. Thank you, John Morgan Richmond, VA -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group at http://groups.google.com/group/rctankcombat
[TANKS] Re: ProtoType Suspension System
you guys are right, A thin plastic washer is what it needs. or bushings in the pivot hole. Mark On Jan 4, 11:16 am, SteveH n1xnx...@gmail.com wrote: Two words, there: Nylon Washers. Won't be very visible even in the pix, but should eliminate any such wear issues. That's a stunningly simple and elegant suspension system, I must say. Of course, you'll want much stiffer springs on the first and last bogies. Regards, Steve On Jan 4, 3:26 am, Ben Holko b...@holnet.net wrote: That's a nice looking system, all aluminum always looks the goods :) I'd be a bit worried about the surface where the two pieces slide, it will wear quickly wont it? Ben -Original Message- From: rctankcombat@googlegroups.com [mailto:rctankcom...@googlegroups.com] On Behalf Of Mark_123521 Sent: Monday, January 04, 2010 11:23 AM To: R/C Tank Combat Subject: [TANKS] ProtoType Suspension System Prototyped a suspension system today. It has a 1 inch thick aluminum bar that all boggies will be built on. The drive sprocket, rear sprocket, and track tensioning system will also mount on this bar. It will be a complete track system that will bolt to the outside of the hull. http://i192.photobucket.com/albums/z65/mm123521/HPIM0698.jpghttp://i1... The boggie has 1.3 inch travel and a compressed wheel pressure of 14 pounds. There are positive travel stops (up and down) built into the 1 inch bar. The lever bar is pivoted on a shoulder bolt, and a 3/8 inch shoulder bolt is the wheel axle. The lever bar is 3/4 X 5/8 X 5 inch aluminum. The springs are captive in pockets on both sides. Mark -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group athttp://groups.google.com/group/rctankcombat- Hide quoted text - - Show quoted text - -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group at http://groups.google.com/group/rctankcombat
[TANKS] ProtoType Suspension System
Prototyped a suspension system today. It has a 1 inch thick aluminum bar that all boggies will be built on. The drive sprocket, rear sprocket, and track tensioning system will also mount on this bar. It will be a complete track system that will bolt to the outside of the hull. http://i192.photobucket.com/albums/z65/mm123521/HPIM0698.jpg http://i192.photobucket.com/albums/z65/mm123521/HPIM0699.jpg The boggie has 1.3 inch travel and a compressed wheel pressure of 14 pounds. There are positive travel stops (up and down) built into the 1 inch bar. The lever bar is pivoted on a shoulder bolt, and a 3/8 inch shoulder bolt is the wheel axle. The lever bar is 3/4 X 5/8 X 5 inch aluminum. The springs are captive in pockets on both sides. Mark -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group at http://groups.google.com/group/rctankcombat
[TANKS] Re: Building Track
Chris: Thanks for the reply. I spent half of the day going through old posts on suspension systems -- theres a lot of good stuff here, if you dig it out. Suspension does look cool! I need to make a decision soon - suspension or not- so I dont get stalled out on actually building a tank. Thanks! Mark On Jan 2, 8:35 pm, Chris. b barthelso...@hotmail.com wrote: I like suspension simply for the fact it looks cool! people seemed to be impressed with complex moving parts... I have built a few tanks, my first had no suspension, it performed great, and trust me I beat that thing up all the time, it wasnt uncommon to see me out in the scrub trying to flip it over! I have also built a couple of suspended tanks, much more work and alot of moving parts that could potentially fail... The biggest advantage I have seen is the amount of extra traction you gain, it just hugs the ground better. All this in mind I do tend to pick suspended over rigidly mounted wheels. Chris. b On Jan 3, 4:23 am, Mark_123521 gatlinggunm...@sbcglobal.net wrote: Trying to get started on my tank. Found an aluminum extrusion at the scrap yard that I can cut a T section out of. Its .090 thick and 2.4 inches wide. I cut up a bunch of track sections with a .625 tall tracking guide. They will get pop rivited to the 3.5 inch wide X .25 thick X 1 inch, PVC treads. Still looking for a treadmill belt. http://i192.photobucket.com/albums/z65/mm123521/HPIM0690.jpghttp://i1... I have two of these motors coming in the mail:http://i192.photobucket.com/albums/z65/mm123521/yhst-92821211804676_2... I have drawn up the sprockets in AutoCad. Still trying to design a suspension system. I see a lot of tanks on this site with No suspension. How valuable is suspension??? You guys have a GREAT site here, a lot of good pictures info!! Thanks! Mark (near Chicago and its 5 degrees outside!)- Hide quoted text - - Show quoted text - -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group at http://groups.google.com/group/rctankcombat
[TANKS] Re: 2060 Attachment Chain Search
Derek, Thanks for taking a run at getting chain! I a also trying to get off the ground building a tank. Need advice: 1. Thinking about an M1 Abrams tank, but is it OK to model a non WW2 tank? 2. M1 Abrams is a BIG tank -- 1/7 th scale makes it 44 inches long (plus the gun barrel). Tub width = 13 inches wide @ 1/7 scale. Is 1/7th scale and 44 inches long gonna be OK? (I know the rules allow variations from 1/6 scale, but is 44 inches too big?) 3. I have some nice motors: 24 volt, 1100 RPM, 4 diameter, 7.5 inch long(+ 1.25 inches for the shaft), full ball bearings, but they weigh 11.5 pounds each. Should only need 2 to 1 sprocket ratio. The motors could be spaced fore and aft, rather than side by side as I see in most designs. 4. I will go to the scrap yard tomorrow and purchase some 1/4 inch aluminum plate for the Tub sidewalls and 3/16 plate for the tub bottom. 5. On a previous trip to the scrapyard, I found an aluminum T shaped extrusion that is 2.5 inches wide and .09 inch thick (purchased 16 feet of it). I think I can cut it into segments and use it for the center guide on a TTS track. I have a sheet of 1/4 inch, gray, PVC that I can cut into 3.5 inch wide by .75 long treads. I can liminate the PVC treads with the treadmill track and aluminum T segments to make track. Have a Lathe and Milling machine in the basement, so working with aluminum is no problem. Could use all the advice I can get! Thanks! Mark On Dec 29, 11:54 am, Derek Engelhaupt tan...@gmail.com wrote: Well, they responded and I doubt I will do this since their minimum order to ship the the US is $3000. Dear Derek, Thank you very much for your email and we are glad to learn your interesting in our products of double pitch attachment chain. However, there is a min order q'ty as 200~300ft per size and US$3000 per shipment to make an oversea shipment. Could you let us know if there is any other chain items you need, we would like to make an offer at the same time. Here is our website,www.mccchain.com.tw, wish you can find more items you are interesting in. Taking this chance, we would like to learn more about your company. Please advise your company name, contact number, fax number and what brand of chain you are current using. Look forward to hear from you soon. With best regards, Erina Ou / Sales Dept Ming Chang Traffic Parts Mfg Web :www.mccchain.com.tw Fax + 886-8-7229920 I have one more option to check into today. I'll see what they say. Derek T065 On Tue, Dec 29, 2009 at 10:59 AM, Steve Tyng steve...@gmail.com wrote: I'll BUILD TTS track at those prices! ;-) Steve TTS is BEST Tyng On Dec 28, 4:10 pm, wsmon...@aim.com wrote: I might have some more for sale at those prices. Will -Original Message- From: Mark_123521 gatlinggunm...@sbcglobal.net To: R/C Tank Combat rctankcombat@googlegroups.com Sent: Mon, Dec 28, 2009 3:34 pm Subject: [TANKS] Re: 2060 Attachment Chain Search I just called tsubaki (http://www.ustsubaki.com/). They make chain. The sales person set me up with a part number C2060h k1 2l rb. It is 2060, double pitch, with an attachment every other link. Is that the right stuff? His list price was $47 per foot !! WHAT??? Mark On Dec 22, 5:51 pm, Ben Holko b...@holnet.net wrote: the stuff I bought from there was perfect, same quality as any local chain I have ever seen. From: rctankcombat@googlegroups.com [rctankcom...@googlegroups.com] on behalf of odysseyslipw...@aol.com [odysseyslipw...@aol.com] Sent: Wednesday, December 23, 2009 10:32 AM To: rctankcombat@googlegroups.com Subject: Re: [TANKS] 2060 Attachment Chain Search In a message dated 12/22/2009 4:40:07 P.M. Eastern Standard Time, b...@holnet.net writes:http://www.mccchain.com.tw/english/1.htm shipping will cost a bit, but depending on how much you buy you can save a lot, the chain is cheap. From memory I paid about USD$2 per foot for #50 attachment chain. Ben at this point even if it was a unbeatable price, with the stuff that's been coming from China, i'd be a bit leery to buy from them Chris, Odyssey Slipwayshttp://hometown.aol.com/odysseyslipways/index.html -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group athttp://groups.google.com/group/rctankcombat -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group athttp://groups.google.com/group/rctankcombat -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat
[TANKS] Re: 2060 Attachment Chain Search
I just called tsubaki (http://www.ustsubaki.com/). They make chain. The sales person set me up with a part number C2060h k1 2l rb. It is 2060, double pitch, with an attachment every other link. Is that the right stuff? His list price was $47 per foot !! WHAT??? Mark On Dec 22, 5:51 pm, Ben Holko b...@holnet.net wrote: the stuff I bought from there was perfect, same quality as any local chain I have ever seen. From: rctankcombat@googlegroups.com [rctankcom...@googlegroups.com] on behalf of odysseyslipw...@aol.com [odysseyslipw...@aol.com] Sent: Wednesday, December 23, 2009 10:32 AM To: rctankcombat@googlegroups.com Subject: Re: [TANKS] 2060 Attachment Chain Search In a message dated 12/22/2009 4:40:07 P.M. Eastern Standard Time, b...@holnet.net writes:http://www.mccchain.com.tw/english/1.htm shipping will cost a bit, but depending on how much you buy you can save a lot, the chain is cheap. From memory I paid about USD$2 per foot for #50 attachment chain. Ben at this point even if it was a unbeatable price, with the stuff that's been coming from China, i'd be a bit leery to buy from them Chris, Odyssey Slipwayshttp://hometown.aol.com/odysseyslipways/index.html -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group athttp://groups.google.com/group/rctankcombat -- You are currently subscribed to the R/C Tank Combat group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group at http://groups.google.com/group/rctankcombat
