[TANKS] Re: new to the hobby, need motors
How many amp hours are most tanks running with thier batteries? Will 12 or 18 be enough, or do i need more. If so how much more. I would think running just 2 smaller batts would do until they run dry and then replace them with another fresh set some time durring the battle. Aaron T0?? -- 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, reply using "remove me" as the subject.
[TANKS] Re: new to the hobby, need motors
Hi Chris, Myself and Garnet picked up 4 powered wheelchairs for dirt cheap, like $25CDN each so I am adapting the motor controller & joystick to run the M01 24v motors. Cheapest, most robust ESC I've ever seen. I'll post pictures when complete. 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 To unsubscribe, reply using "remove me" as the subject.
Re: [TANKS] Re: new to the hobby, need motors
In a message dated 4/2/2010 11:50:27 A.M. Eastern Daylight Time, f...@thomson-online.org writes: I'm busy converting it to a proportional speed controller. how so? 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 To unsubscribe, reply using "remove me" as the subject.
Re: [TANKS] Re: new to the hobby, need motors
Yes, but that's A LOT of weight if you are using sealed lead acid batteries. Derek T065 SV016 On Fri, Apr 2, 2010 at 11:05 AM, Cobra9431 wrote: > So, if 2 12v 18ah bats wired in series doubles volts but not amps, and > wired parallel doubles amps but not volts, would 2 sets of parallel > bats producing 12v and 36ah wired in series produce 24v and 36ah? > > > Aaron > T0?? > > -- > 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, reply using "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 at http://groups.google.com/group/rctankcombat
[TANKS] Re: new to the hobby, need motors
So, if 2 12v 18ah bats wired in series doubles volts but not amps, and wired parallel doubles amps but not volts, would 2 sets of parallel bats producing 12v and 36ah wired in series produce 24v and 36ah? Aaron T0?? -- 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, reply using "remove me" as the subject.
[TANKS] Re: new to the hobby, need motors
Hi Aaron, I'm using two SBS60 12v 51ah SLA deep cycle batteries. Which accounts for almost half (2 x 40lbs) of the Bulldog's weight. 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 To unsubscribe, reply using "remove me" as the subject.
[TANKS] Re: new to the hobby, need motors
Hi Chris, I was using a TriPac speed controller (basic on/off). I'm busy converting it to a proportional speed controller. Cheers, Fred > > where running it at full speed - are you using a basic off on controller > or a variable speed controller? > > looks like a fairly large tank you have there > > 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 To unsubscribe, reply using "remove me" as the subject.
RE: [TANKS] Re: new to the hobby, need motors
I went with a 24v 20ah LifePo4 lithium battery from ebay (China). Expensive, but small and light considering the capacity. Ben -Original Message- From: rctankcombat@googlegroups.com [mailto:rctankcom...@googlegroups.com] On Behalf Of Cobra9431 Sent: Friday, 2 April 2010 1:34 PM To: R/C Tank Combat Subject: [TANKS] Re: new to the hobby, need motors What kind of battery set up would/do you use to power a pair of 24v 450w 24amp 3000rpm motors? I notice most use a pair of batteries. Is that pretty much an unavoidable thing or does it just work better that way? Aaron T0?? -- 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, reply using "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 at http://groups.google.com/group/rctankcombat
Re: [TANKS] Re: new to the hobby, need motors
They do make 24V cells, but they are usually quite expensive. That's the primary reason most of us use two 12V batteries wired in series. Two 12V 18Ah batteries wired in series produces 24V at 18Ah. If those same cells were wired in parallel, you would get 12V at 36Ah Derek T065 SV016 On Thu, Apr 1, 2010 at 10:04 PM, Mike Mane wrote: > I haven't seen 24v cells before.. You probably need a pair of 12v cells > connected together, or at least that would be the most common battery. > > —Mike M > > Message sent by way of mobile device > > > On Apr 1, 2010, at 9:34 PM, Cobra9431 wrote: > > What kind of battery set up would/do you use to power a pair of 24v >> 450w 24amp 3000rpm motors? >> I notice most use a pair of batteries. Is that pretty much an >> unavoidable thing or does it just work better that way? >> >> Aaron >> T0?? >> >> -- >> 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, reply using "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 at http://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
Re: [TANKS] Re: new to the hobby, need motors
I haven't seen 24v cells before.. You probably need a pair of 12v cells connected together, or at least that would be the most common battery. —Mike M Message sent by way of mobile device On Apr 1, 2010, at 9:34 PM, Cobra9431 wrote: What kind of battery set up would/do you use to power a pair of 24v 450w 24amp 3000rpm motors? I notice most use a pair of batteries. Is that pretty much an unavoidable thing or does it just work better that way? Aaron T0?? -- 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, reply using "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 at http://groups.google.com/group/rctankcombat
[TANKS] Re: new to the hobby, need motors
What kind of battery set up would/do you use to power a pair of 24v 450w 24amp 3000rpm motors? I notice most use a pair of batteries. Is that pretty much an unavoidable thing or does it just work better that way? Aaron T0?? -- 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, reply using "remove me" as the subject.
Re: [TANKS] Re: new to the hobby, need motors
In a message dated 4/1/2010 10:57:39 A.M. Eastern Daylight Time, f...@thomson-online.org writes: It keep going till it ran out of traction then spun the tracks and dug itself in. As I said, no shortage of torque in the MY1 motors. Cheers, Fred where running it at full speed - are you using a basic off on controller or a variable speed controller? looks like a fairly large tank you have there 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 To unsubscribe, reply using "remove me" as the subject.
[TANKS] Re: new to the hobby, need motors
Hi Greg, I might* have a pair laying around (can't remember if I threw them out), they are yours for the price of the postage if you want. I sometimes get wheelchair motors, want me to keep an eye open for a pair for you? Remember, you have to supply 24v to the brake to unlock it. 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: new to the hobby, need motors
Hi Aaron, Here's a link to a photo of my Bulldog climbing up a gravel pile: http://www.rctankcombat.com/tanks/T064/060-large.jpg It keep going till it ran out of traction then spun the tracks and dug itself in. As I said, no shortage of torque in the MY1 motors. 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 To unsubscribe, reply using "remove me" as the subject.
RE: [TANKS] Re: new to the hobby, need motors
With these motors and 4-5mph, you will not have a problem with climbing. I have 350w 24v in T067 with about 5mph, and there is heaps of torque, and it weighs about 200lbs. Ben -Original Message- From: rctankcombat@googlegroups.com [mailto:rctankcom...@googlegroups.com] On Behalf Of Cobra9431 Sent: Thursday, 1 April 2010 10:52 AM To: R/C Tank Combat Subject: [TANKS] Re: new to the hobby, need motors Thanks, this all helps. I dont have much room inside to have an elabrate system of sprockets and wheels to gear everything down. I do want a high speed tank to compliment one of the few truely superb points of the WWII Sherman, it was generaly faster than any Gerry or Ivan unit. But I dont want to give up climbing power for hills or tall brush. Anyways, like I said, Thanks. Aaron T0?? On Mar 31, 4:32 pm, Derek Engelhaupt wrote: > Joe's rule of 4's > > I recommend the *Rule* of *Fours* > > > 4 inch DIA drive sprockets > > 400 rpm no load speed at each drive sprocket > > 400 in.lbf stall torque at each drive sprocket > > 4 mph with sufficient torque for full-skid steer > > I use Victor ESC's and have the brake function disabled. It's not > needed as Ben pointed out. My tanks stop on their own due to rolling > resistance. I have never built a tank and actually calculated the > final speed. All of the motors I've used have been in the 400RPM > range so whatever speed comes out in the end, so be it. > > Derek > T065 > > > > On Wed, Mar 31, 2010 at 5:08 PM, Ben Holko wrote: > > Victor ESC's have an electronic brake feature, switchable on/off by > > a small jumper. I think most people (including me) have left it > > turned off as it seems to be rather a violent stop from 5+mph, and > > these tanks typically have enough weight and rolling resistance to stop > > themselves. > > > 300-400 should be fine for your final motor drive. If by final drive > > you are referring to track sprocket rpm, then it might be a bit high > > depending on how big your track sprocket is. > > > If you have a 4" track sprocket, that is a circumference of > > (rounded) 12", with a an RPM of 400 on this sprocket that is about > > 4.7mph > > > The way I build is to sort out my track sprocket and the speed I > > want to achieve, and work back from there with motor/drive sprockets > > to suit. So geared motor output speed of 300-400 is in the ball > > park, and you can fine tune with the sprocket on your driveshaft if > > necessary. > > > Ben > > > -Original Message- > > From: rctankcombat@googlegroups.com > > [mailto:rctankcom...@googlegroups.com] > > On Behalf Of Cobra9431 > > Sent: Thursday, 1 April 2010 8:19 AM > > To: R/C Tank Combat > > Subject: [TANKS] Re: new to the hobby, need motors > > > So, is 400 about the ballpark that should be aiming at for a final > > dive rpm ? > > > Aaron > > T0?? > > > On Mar 30, 8:13 pm, Derek Engelhaupt wrote: > > > Most definitely running at 24V I'm using the same ones Mark is > > > using in my KV-2 also which will be in the 110-130lbs. range. If > > > you wanted to gear them down a little, use a larger than 9 tooth > > > sprocket on > > the final drives. > > > You can see the basic speed of the motors > > > here:http://www.youtube.com/watch?v=d7dfrddGMOIBear in mind that > > > it > > will be somewhat slower since my M113 only weighs in at about 50lbs. > > in that vid. > > > > Derek > > > 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 athttp://groups.google.com/group/rctankcombat > > > To unsubscribe, reply using "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- 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 -- 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
Re: [TANKS] Re: new to the hobby, need motors
You would have no issues with climbing with those motors and no further reduction. Derek T065 On Wed, Mar 31, 2010 at 6:51 PM, Cobra9431 wrote: > Thanks, this all helps. I dont have much room inside to have an > elabrate system of sprockets and wheels to gear everything down. I do > want a high speed tank to compliment one of the few truely superb > points of the WWII Sherman, it was generaly faster than any Gerry or > Ivan unit. But I dont want to give up climbing power for hills or tall > brush. Anyways, like I said, Thanks. > > Aaron > T0?? > > > On Mar 31, 4:32 pm, Derek Engelhaupt wrote: > > Joe's rule of 4's > > > > I recommend the *Rule* of *Fours* > > > > >4 inch DIA drive sprockets > > >400 rpm no load speed at each drive sprocket > > >400 in.lbf stall torque at each drive sprocket > > >4 mph with sufficient torque for full-skid steer > > > > I use Victor ESC's and have the brake function disabled. It's not needed > as > > Ben > > pointed out. My tanks stop on their own due to rolling resistance. I > have > > never > > built a tank and actually calculated the final speed. All of the motors > > I've used > > have been in the 400RPM range so whatever speed comes out in the end, so > be > > it. > > > > Derek > > T065 > > > > > > > > On Wed, Mar 31, 2010 at 5:08 PM, Ben Holko wrote: > > > Victor ESC's have an electronic brake feature, switchable on/off by a > small > > > jumper. I think most people (including me) have left it turned off as > it > > > seems to be rather a violent stop from 5+mph, and these tanks typically > have > > > enough weight and rolling resistance to stop themselves. > > > > > 300-400 should be fine for your final motor drive. If by final drive > you > > > are referring to track sprocket rpm, then it might be a bit high > depending > > > on how big your track sprocket is. > > > > > If you have a 4" track sprocket, that is a circumference of (rounded) > 12", > > > with a an RPM of 400 on this sprocket that is about 4.7mph > > > > > The way I build is to sort out my track sprocket and the speed I want > to > > > achieve, and work back from there with motor/drive sprockets to suit. > So > > > geared motor output speed of 300-400 is in the ball park, and you can > fine > > > tune with the sprocket on your driveshaft if necessary. > > > > > Ben > > > > > -Original Message- > > > From: rctankcombat@googlegroups.com [mailto: > rctankcom...@googlegroups.com] > > > On Behalf Of Cobra9431 > > > Sent: Thursday, 1 April 2010 8:19 AM > > > To: R/C Tank Combat > > > Subject: [TANKS] Re: new to the hobby, need motors > > > > > So, is 400 about the ballpark that should be aiming at for a final dive > rpm > > > ? > > > > > Aaron > > > T0?? > > > > > On Mar 30, 8:13 pm, Derek Engelhaupt wrote: > > > > Most definitely running at 24V I'm using the same ones Mark is > > > > using in my KV-2 also which will be in the 110-130lbs. range. If you > > > > wanted to gear them down a little, use a larger than 9 tooth sprocket > on > > > the final drives. > > > > You can see the basic speed of the motors > > > > here:http://www.youtube.com/watch?v=d7dfrddGMOIBear in mind that it > > > will be somewhat slower since my M113 only weighs in at about 50lbs. in > that > > > vid. > > > > > > Derek > > > > 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 athttp://groups.google.com/group/rctankcombat > > > > > To unsubscribe, reply using "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- 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 > -- 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: new to the hobby, need motors
Thanks, this all helps. I dont have much room inside to have an elabrate system of sprockets and wheels to gear everything down. I do want a high speed tank to compliment one of the few truely superb points of the WWII Sherman, it was generaly faster than any Gerry or Ivan unit. But I dont want to give up climbing power for hills or tall brush. Anyways, like I said, Thanks. Aaron T0?? On Mar 31, 4:32 pm, Derek Engelhaupt wrote: > Joe's rule of 4's > > I recommend the *Rule* of *Fours* > > > 4 inch DIA drive sprockets > > 400 rpm no load speed at each drive sprocket > > 400 in.lbf stall torque at each drive sprocket > > 4 mph with sufficient torque for full-skid steer > > I use Victor ESC's and have the brake function disabled. It's not needed as > Ben > pointed out. My tanks stop on their own due to rolling resistance. I have > never > built a tank and actually calculated the final speed. All of the motors > I've used > have been in the 400RPM range so whatever speed comes out in the end, so be > it. > > Derek > T065 > > > > On Wed, Mar 31, 2010 at 5:08 PM, Ben Holko wrote: > > Victor ESC's have an electronic brake feature, switchable on/off by a small > > jumper. I think most people (including me) have left it turned off as it > > seems to be rather a violent stop from 5+mph, and these tanks typically have > > enough weight and rolling resistance to stop themselves. > > > 300-400 should be fine for your final motor drive. If by final drive you > > are referring to track sprocket rpm, then it might be a bit high depending > > on how big your track sprocket is. > > > If you have a 4" track sprocket, that is a circumference of (rounded) 12", > > with a an RPM of 400 on this sprocket that is about 4.7mph > > > The way I build is to sort out my track sprocket and the speed I want to > > achieve, and work back from there with motor/drive sprockets to suit. So > > geared motor output speed of 300-400 is in the ball park, and you can fine > > tune with the sprocket on your driveshaft if necessary. > > > Ben > > > -----Original Message----- > > From: rctankcombat@googlegroups.com [mailto:rctankcom...@googlegroups.com] > > On Behalf Of Cobra9431 > > Sent: Thursday, 1 April 2010 8:19 AM > > To: R/C Tank Combat > > Subject: [TANKS] Re: new to the hobby, need motors > > > So, is 400 about the ballpark that should be aiming at for a final dive rpm > > ? > > > Aaron > > T0?? > > > On Mar 30, 8:13 pm, Derek Engelhaupt wrote: > > > Most definitely running at 24V I'm using the same ones Mark is > > > using in my KV-2 also which will be in the 110-130lbs. range. If you > > > wanted to gear them down a little, use a larger than 9 tooth sprocket on > > the final drives. > > > You can see the basic speed of the motors > > > here:http://www.youtube.com/watch?v=d7dfrddGMOIBear in mind that it > > will be somewhat slower since my M113 only weighs in at about 50lbs. in that > > vid. > > > > Derek > > > 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 athttp://groups.google.com/group/rctankcombat > > > To unsubscribe, reply using "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- 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
Re: [TANKS] Re: new to the hobby, need motors
Joe's rule of 4's I recommend the *Rule* of *Fours* >4 inch DIA drive sprockets >400 rpm no load speed at each drive sprocket >400 in.lbf stall torque at each drive sprocket >4 mph with sufficient torque for full-skid steer I use Victor ESC's and have the brake function disabled. It's not needed as Ben pointed out. My tanks stop on their own due to rolling resistance. I have never built a tank and actually calculated the final speed. All of the motors I've used have been in the 400RPM range so whatever speed comes out in the end, so be it. Derek T065 On Wed, Mar 31, 2010 at 5:08 PM, Ben Holko wrote: > Victor ESC's have an electronic brake feature, switchable on/off by a small > jumper. I think most people (including me) have left it turned off as it > seems to be rather a violent stop from 5+mph, and these tanks typically have > enough weight and rolling resistance to stop themselves. > > 300-400 should be fine for your final motor drive. If by final drive you > are referring to track sprocket rpm, then it might be a bit high depending > on how big your track sprocket is. > > If you have a 4" track sprocket, that is a circumference of (rounded) 12", > with a an RPM of 400 on this sprocket that is about 4.7mph > > The way I build is to sort out my track sprocket and the speed I want to > achieve, and work back from there with motor/drive sprockets to suit. So > geared motor output speed of 300-400 is in the ball park, and you can fine > tune with the sprocket on your driveshaft if necessary. > > Ben > > > -Original Message- > From: rctankcombat@googlegroups.com [mailto:rctankcom...@googlegroups.com] > On Behalf Of Cobra9431 > Sent: Thursday, 1 April 2010 8:19 AM > To: R/C Tank Combat > Subject: [TANKS] Re: new to the hobby, need motors > > So, is 400 about the ballpark that should be aiming at for a final dive rpm > ? > > Aaron > T0?? > > On Mar 30, 8:13 pm, Derek Engelhaupt wrote: > > Most definitely running at 24V I'm using the same ones Mark is > > using in my KV-2 also which will be in the 110-130lbs. range. If you > > wanted to gear them down a little, use a larger than 9 tooth sprocket on > the final drives. > > You can see the basic speed of the motors > > here:http://www.youtube.com/watch?v=d7dfrddGMOI Bear in mind that it > will be somewhat slower since my M113 only weighs in at about 50lbs. in that > vid. > > > > Derek > > 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 > > To unsubscribe, reply using "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 at http://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
RE: [TANKS] Re: new to the hobby, need motors
Victor ESC's have an electronic brake feature, switchable on/off by a small jumper. I think most people (including me) have left it turned off as it seems to be rather a violent stop from 5+mph, and these tanks typically have enough weight and rolling resistance to stop themselves. 300-400 should be fine for your final motor drive. If by final drive you are referring to track sprocket rpm, then it might be a bit high depending on how big your track sprocket is. If you have a 4" track sprocket, that is a circumference of (rounded) 12", with a an RPM of 400 on this sprocket that is about 4.7mph The way I build is to sort out my track sprocket and the speed I want to achieve, and work back from there with motor/drive sprockets to suit. So geared motor output speed of 300-400 is in the ball park, and you can fine tune with the sprocket on your driveshaft if necessary. Ben -Original Message- From: rctankcombat@googlegroups.com [mailto:rctankcom...@googlegroups.com] On Behalf Of Cobra9431 Sent: Thursday, 1 April 2010 8:19 AM To: R/C Tank Combat Subject: [TANKS] Re: new to the hobby, need motors So, is 400 about the ballpark that should be aiming at for a final dive rpm ? Aaron T0?? On Mar 30, 8:13 pm, Derek Engelhaupt wrote: > Most definitely running at 24V I'm using the same ones Mark is > using in my KV-2 also which will be in the 110-130lbs. range. If you > wanted to gear them down a little, use a larger than 9 tooth sprocket on the > final drives. > You can see the basic speed of the motors > here:http://www.youtube.com/watch?v=d7dfrddGMOI Bear in mind that it will be > somewhat slower since my M113 only weighs in at about 50lbs. in that vid. > > Derek > 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 To unsubscribe, reply using "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 at http://groups.google.com/group/rctankcombat
[TANKS] Re: new to the hobby, need motors
So, is 400 about the ballpark that should be aiming at for a final dive rpm ? Aaron T0?? On Mar 30, 8:13 pm, Derek Engelhaupt wrote: > Most definitely running at 24V I'm using the same ones Mark is using in > my KV-2 also which will be in the 110-130lbs. range. If you wanted to gear > them down a little, use a larger than 9 tooth sprocket on the final drives. > You can see the basic speed of the motors > here:http://www.youtube.com/watch?v=d7dfrddGMOI Bear in mind that it will be > somewhat slower since my M113 only weighs in at about 50lbs. in that vid. > > Derek > 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 To unsubscribe, reply using "remove me" as the subject.
[TANKS] Re: new to the hobby, need motors
Hi Fred, I never heard of anthing like that either , but thought it was worth asking. I think your right, wheel chair motors may be the only way. It's just that they are harder to get and usally expensive. Thanks Greg On Mar 31, 1:04 pm, Fred Thomson wrote: > Hi Aaron, > > I'm using the MY1016Z3 24v motors in my Bulldog (T064). It tips the > scales at a rather porky 200lbs and the motors have power to spare. > > Hi Greg, > > I've never seen an 'add-on' electric brake. That doesn't mean they > don't exist, just that I've never seen them. :-) > Best bet would be to scrounge a pair from a set of wheelchair motors > and adapt the accordingly. > > 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 To unsubscribe, reply using "remove me" as the subject.
[TANKS] Re: new to the hobby, need motors
Hi Aaron, I'm using the MY1016Z3 24v motors in my Bulldog (T064). It tips the scales at a rather porky 200lbs and the motors have power to spare. Hi Greg, I've never seen an 'add-on' electric brake. That doesn't mean they don't exist, just that I've never seen them. :-) Best bet would be to scrounge a pair from a set of wheelchair motors and adapt the accordingly. 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 To unsubscribe, reply using "remove me" as the subject.
[TANKS] Re: new to the hobby, need motors
Ok guys, since we're on the topic of motors, I have a couple of questions. - A geared motor of 3000 rpms with a ratio of 79:11 would give you a final drive rpm of 417, is that right? - Can you get a motor (other than wheel chair motor) that have an electric brake? Or is there a seperate product that can be used to achieve this? Thanks for any help. Greg On Mar 30, 9:44 pm, Mark_123522 wrote: > Aaron: > > Look over these motors:http://www.electricscooterparts.com/motors.html#top > item # MOT-24250G > I a using the 450watt version of this motor. > I think, If you look around, you can find these for less $$: > > http://tncscooters.com/partsdb.php?class_type=Motor%20Parts > > Mark > > On Mar 30, 7:08 pm, Cobra9431 wrote: > > > > > I'm new to the hobby but have already started building an M4A3E8 > > Sherman, 2 actualy. My interior space is limited as I scaled down my > > plans to be exactly 3 feet long leaving me with only 91/2'' of > > interior width for my motors. Do you know of any 24v motors than will > > not require to be geared down. How about what is the best over all > > motor to be used in this hobby's experience? Any feed back will be > > great. Thanks. > > Aaron Freeman > > Near Las Vegas, NV- 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, reply using "remove me" as the subject.
Re: [TANKS] Re: new to the hobby, need motors
Most definitely running at 24V I'm using the same ones Mark is using in my KV-2 also which will be in the 110-130lbs. range. If you wanted to gear them down a little, use a larger than 9 tooth sprocket on the final drives. You can see the basic speed of the motors here: http://www.youtube.com/watch?v=d7dfrddGMOI Bear in mind that it will be somewhat slower since my M113 only weighs in at about 50lbs. in that vid. Derek T065 On Tue, Mar 30, 2010 at 9:58 PM, Cobra9431 wrote: > I like the ones you showed in your rig. Will these motors run a > 100-150 lbs machine without needing to be geared down further? (1:1 to > final drive) > -Aaron > > On Mar 30, 5:56 pm, Mark_123522 wrote: > > Aaron: > > This is how I mounted my motors: > > > > > http://i192.photobucket.com/albums/z65/mm123521/HPIM0753.jpghttp://i192.photobucket.com/albums/z65/mm123521/HPIM0771.jpghttp://i192.photobucket.com/albums/z65/mm123521/HPIM0755.jpghttp://i192.photobucket.com/albums/z65/mm123521/HPIM0772.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 To unsubscribe, reply using "remove me" as the subject.
[TANKS] Re: new to the hobby, need motors
I like the ones you showed in your rig. Will these motors run a 100-150 lbs machine without needing to be geared down further? (1:1 to final drive) -Aaron On Mar 30, 5:56 pm, Mark_123522 wrote: > Aaron: > This is how I mounted my motors: > > http://i192.photobucket.com/albums/z65/mm123521/HPIM0753.jpghttp://i192.photobucket.com/albums/z65/mm123521/HPIM0771.jpghttp://i192.photobucket.com/albums/z65/mm123521/HPIM0755.jpghttp://i192.photobucket.com/albums/z65/mm123521/HPIM0772.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 To unsubscribe, reply using "remove me" as the subject.
Re: [TANKS] Re: new to the hobby, need motors
If you mounted them that way, they would definitely fit. Derek T065 On Tue, Mar 30, 2010 at 7:56 PM, Mark_123522 wrote: > Aaron: > This is how I mounted my motors: > > http://i192.photobucket.com/albums/z65/mm123521/HPIM0753.jpg > http://i192.photobucket.com/albums/z65/mm123521/HPIM0771.jpg > http://i192.photobucket.com/albums/z65/mm123521/HPIM0755.jpg > http://i192.photobucket.com/albums/z65/mm123521/HPIM0772.jpg > > Mark > > > On Mar 30, 7:08 pm, Cobra9431 wrote: > > I'm new to the hobby but have already started building an M4A3E8 > > Sherman, 2 actualy. My interior space is limited as I scaled down my > > plans to be exactly 3 feet long leaving me with only 91/2'' of > > interior width for my motors. Do you know of any 24v motors than will > > not require to be geared down. How about what is the best over all > > motor to be used in this hobby's experience? Any feed back will be > > great. Thanks. > > Aaron Freeman > > Near Las Vegas, NV > > -- > 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, reply using "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 at http://groups.google.com/group/rctankcombat
[TANKS] Re: new to the hobby, need motors
Aaron: This is how I mounted my motors: http://i192.photobucket.com/albums/z65/mm123521/HPIM0753.jpg http://i192.photobucket.com/albums/z65/mm123521/HPIM0771.jpg http://i192.photobucket.com/albums/z65/mm123521/HPIM0755.jpg http://i192.photobucket.com/albums/z65/mm123521/HPIM0772.jpg Mark On Mar 30, 7:08 pm, Cobra9431 wrote: > I'm new to the hobby but have already started building an M4A3E8 > Sherman, 2 actualy. My interior space is limited as I scaled down my > plans to be exactly 3 feet long leaving me with only 91/2'' of > interior width for my motors. Do you know of any 24v motors than will > not require to be geared down. How about what is the best over all > motor to be used in this hobby's experience? Any feed back will be > great. Thanks. > Aaron Freeman > Near Las Vegas, NV -- 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, reply using "remove me" as the subject.
[TANKS] Re: new to the hobby, need motors
Aaron: Look over these motors: http://www.electricscooterparts.com/motors.html#top item # MOT-24250G I a using the 450watt version of this motor. I think, If you look around, you can find these for less $$: http://tncscooters.com/partsdb.php?class_type=Motor%20Parts Mark On Mar 30, 7:08 pm, Cobra9431 wrote: > I'm new to the hobby but have already started building an M4A3E8 > Sherman, 2 actualy. My interior space is limited as I scaled down my > plans to be exactly 3 feet long leaving me with only 91/2'' of > interior width for my motors. Do you know of any 24v motors than will > not require to be geared down. How about what is the best over all > motor to be used in this hobby's experience? Any feed back will be > great. Thanks. > Aaron Freeman > Near Las Vegas, NV -- 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, reply using "remove me" as the subject.
