[TANKS] Re: relays?
Doug Conn wrote: > Yeah, I noticed that, too. I was wondering "what can you do with 20ma ?" I > guess it's made for tripping an opt-ioslated switch or driving a transistor. It's actually quite a strange little product that doesn't have a lot of practical uses. It only uses "half" of a servo channel (it only trips in one direction) and you can't set the trip point to suit your purposes. Moreover, it requires you to add other electronic components to do anything useful with it. I can't imagine anyone using it as an input to a micro-processor, because a little bit of code will do the same thing and much, much more. Basically, if you already have the electronic skills, the product is too limiting and if you don't have the electronic skills, the product can't solve your problem by itself. With just a little more work, they could have created a bi-directional R/C switch with dual opto-couplers, which would have been much more useful and which wouldn't increase the cost much at all. Frank P. --~--~-~--~~~---~--~~ 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: relays?
Oops... Forgot all about that. -Original Message- From: Joe Sommer Sent: Tuesday, January 20, 2009 5:22 PM To: R/C Tank Combat Subject: [TANKS] Re: relays? On Jan 20, 3:54 pm, "Don Shankin" wrote: > You could get some cheap standard 24v (marine?) relays, and turn them on/off > from your RC receiver. Don't connect the receiver output directly to the > relay; use a BJT or a MOSFET between them. Nice and cheap Driving a MOSFET directly from a radio Rx will produce 50 Hz pulses with 2% to 4% duty cycle which will not drive a relay. Joe --~--~-~--~~~---~--~~ 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: An option to get tank everyone together and discuss, and have a battle with 1/16th tanks with full battle systems
Well, water can't really compressPerhaps he/she was suggesting a mechanism like Super Soakers using air pressure to spray the liquid. It may help, but also would dilude/thin the paint with additional water. - On Tue, Jan 20, 2009 at 10:46 AM, callum.king.underw...@googlemail.com < callum.king.underw...@hotmail.com> wrote: > > Apparently there is a new paintball grenade that uses a small water > tank that bursts and makes the paint expand and pretty much explode > everywhere. I don't see how that would work and I can't find it > online. It was a mate that told me about it. > > On Jan 18, 7:28 pm, Mike Måne wrote: > > Yes, they are like giant tank caltrops. By the way, has anybody built a > > landmine actually used in a tank battle yet? That would be an interesting > > field to consider. > > - > > > > On Sun, Jan 18, 2009 at 3:55 AM, callum.king.underw...@googlemail.com < > > > > > > > > callum.king.underw...@hotmail.com> wrote: > > > > > Hedgehogs are annoying on xbox games. You try blow one up it just tips > > > over. > > > > > On Jan 18, 1:00 am, "Derek Engelhaupt" wrote: > > > > Sorry, "bracked" was supposed to be "bracket". Detailed plans on how > > > > to build one in 1/6 scale: > > > > > >http://www.euronet.nl/~idi_bark/ > > > > > > Derek > > > > > > On Sat, Jan 17, 2009 at 6:50 PM, Derek Engelhaupt > > > wrote: > > > > > "Industrially manufactured Czech hedgehogs were made of three > L-shaped > > > > > metal brackets (L 140/140/13 mm, length 1.8 metres (5 ft 11 in), > > > > > weight 198 kilograms (440 lb); later versions: length 2.1 metres (6 > ft > > > > > 11 in), weight 240 kilograms (530 lb)) joined by sheet metal, > rivets > > > > > and bolts (or, later in the war, welded together) into a > > > > > characteristic spatial three-armed cross." - according to > Wikipedia. > > > > > > >http://en.wikipedia.org/wiki/Czech_hedgehog > > > > > > > Scale length for each bracked would be 13.83" for the later > version. > > > > > > > Derek > > > > > > > On Sat, Jan 17, 2009 at 3:55 PM, Joe Sommer > > > wrote: > > > > > > >> On Jan 17, 4:32 pm, funkyne...@ntlworld.com wrote: > > > > >>> Could you tell me what is the length of the 2*2 members that make > the > > > > >>> hedgehogs? > > > > >>> They look quite long , about 16inch Im guessing from the picture. > > > > >>> with an average tank ground clearance of 2-4 inch why do they > need to > > > > >>> be so large? > > > > > > >> Ask Mr. Tyng. > > > > > > >> The Marlows actually anchor them into the ground with steel rebar > (no > > > > >> kidding). > > > > > > >> Joe > > > > -- > > -Mike Måne @http://moonrcprojects.googlepages.com > > > -- -Mike Måne @ http://moonrcprojects.googlepages.com --~--~-~--~~~---~--~~ 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: relays?
Yeah, I noticed that, too. I was wondering "what can you do with 20ma ?" I guess it's made for tripping an opt-ioslated switch or driving a transistor. - Doug -Original Message- From: rctankcombat@googlegroups.com [mailto:rctankcom...@googlegroups.com] On Behalf Of Frank Pittelli Sent: Tuesday, January 20, 2009 5:05 PM To: rctankcombat@googlegroups.com Subject: [TANKS] Re: relays? Doug Conn wrote: > Pololu just released this R/C switch for $9.95/$8.95. > > http://www.pololu.com/catalog/product/752 Be careful. That circuit only sources/sinks 20ma, which is far less current than required by most relay coils. Joe's (battle-tested) circuit can sink 150ma of current. So, you'll have to add more electronics to that circuit to compare the prices. You'll also need to add your own cable. Frank P. --~--~-~--~~~---~--~~ 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: relays?
Joe Sommer wrote: > > On Jan 20, 3:54 pm, "Don Shankin" wrote: >> You could get some cheap standard 24v (marine?) relays, and turn them on/off >> from your RC receiver. Don't connect the receiver output directly to the >> relay; use a BJT or a MOSFET between them. Nice and cheap > > Driving a MOSFET directly from a radio Rx will > produce 50 Hz pulses with 2% to 4% duty cycle > which will not drive a relay. Based on the website diagram, he's tapping the power lines running to the motor inside of the servo, which has a much higher duty cycle, but it's still not a good choice. The power lines are still PWM, so if you hook a MOSFET to them, the MOSFET will be turning on and off rapidly whenever the relay is actuated. Furthermore, since the gate voltage will be lower than the load, the MOSFET will not be switching efficiently. In short, the MOSFET will get hot if the relay is actuated for extended periods. Even if those problems were overcome, you would still want to isolate the relay coil circuit from the servo control circuit to prevent damage to the control logic. So, think "opto-coupler" instead of MOSFET. Of course, by the time you've added an opto-coupler to the circuit, the "battle-tested" Anvilus R/C Switch is looking mighty cheap indeed. Frank P. PS: The goal is not just "cheap", but "cheap and reliable". The cheapest systems are those that work forever. --~--~-~--~~~---~--~~ 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: relays?
On Jan 20, 12:43 pm, "Chrysanthos Kanellopoulos" wrote: > Is there a trick that will do the same job for cheap? My regular RC Switch will handle 48V at 150mA which is enough to drive most relays, small lights and marker e-triggers. More importantly it provides optical isolation between the radio Rx and the power circuit to help prevent frying your radio and reduce noise spikes. It can drive a door lock actuator using an intermediate relay. I have one in stock. On Jan 20, 1:40 pm, "Derek Engelhaupt" wrote: > Does Joe still have anymore of the heavier duty ones? Looking actuate > a door lock also. I also make an RC Megaswitch that I do not advertise. It will handle 60V at 10A with an onboard Crydom CMX60D10 SSR. It is also optically isolated. It can drive a door lock actuator directly. I can provide a photo if interested. I have one in stock. Joe --~--~-~--~~~---~--~~ 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: relays?
On Jan 20, 3:54 pm, "Don Shankin" wrote: > You could get some cheap standard 24v (marine?) relays, and turn them on/off > from your RC receiver. Don't connect the receiver output directly to the > relay; use a BJT or a MOSFET between them. Nice and cheap Driving a MOSFET directly from a radio Rx will produce 50 Hz pulses with 2% to 4% duty cycle which will not drive a relay. Joe --~--~-~--~~~---~--~~ 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: relays?
Doug Conn wrote: > Pololu just released this R/C switch for $9.95/$8.95. > > http://www.pololu.com/catalog/product/752 Be careful. That circuit only sources/sinks 20ma, which is far less current than required by most relay coils. Joe's (battle-tested) circuit can sink 150ma of current. So, you'll have to add more electronics to that circuit to compare the prices. You'll also need to add your own cable. Frank P. --~--~-~--~~~---~--~~ 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: relays?
Make your own cheap 10Amp R/C Power Switch from: 1) Servo (servo gears will be removed) 2) 5v Relay How-to Guide: http://rcgearing.com/servoswitch.html Demo Video: http://www.youtube.com/watch?v=y5gy4lCdNvc Contact me personally if you have specific questions about doing this. On Jan 20, 12:43 pm, "Chrysanthos Kanellopoulos" wrote: > Is there a trick that will do the same job for cheap? > > > > > The generic term is "R/C Switch", which will point to lots of different > > products that do the same thing. Most use relays, some use SSRs ... all > > seem overly expensive for what they do :-) > > > Frank P. > > > __ NOD32 3434 (20080911) Information __ > > > This message was checked by NOD32 antivirus system. > >http://www.eset.com- 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: Wheels, wheels and more wheels!
This is exactly how I cut my 28 wheels. No problems here On Mon, Jan 19, 2009 at 8:18 PM, Modena wrote: > > maybe there's an obvious answer to this, but I cant think of it as I > bought my wheels, but for those making wheels out of wood or nylon or > other soft material, why dont you use a hole saw? Then there's no > mucking around with jigs and table saws, and all wheels will be > idential - do it in a drill press to ensure a straight up-and-down cut > > wouldn't this work? the only trick might be that it can be difficult > to extract the "wheel" from inside the hole saw, especially without > damaging the "wheel" > > > On Jan 20, 11:16 am, joseph carrig wrote: > > I have used Plasticote in my business with excellent results. As with any > paint, prep can make or break a paint job. Joe > > > > From: odysseyslipw...@aol.com > > Date: Mon, 19 Jan 2009 12:01:40 -0500 > > Subject: [TANKS] Re: Wheels, wheels and more wheels! > > To: rctankcombat@googlegroups.com > > > > In a message dated 1/18/2009 10:35:16 P.M. Eastern Standard Time, > tan...@gmail.com writes: > > > > What > > about using PVC sheet instead of wood? You could use all the > > same > > wood working tools to form them. Yes PVC sheet would be > > more > > expensive, but it does take paint fairly well if it's cleaned > > before > > painting. Plus they make paints that bond to plastic > > called > > Plasticote. I painted some plastic faced hard drive carriers > > with it > > and you can't even scratch it off with a finger nail. 1/4 > > scale isn't > > cheap;) > > > > Derek > > i have heard of nightmares from people who have used that plsitcote > > paint > > > > Chris, > > Odyssey > > Slipways > > > > A Good Credit Score is 700 or Above. See yours in just 2 easy steps! > > > > _ > > Windows Live™ Hotmail(R): Chat. Store. Share. Do more with mail. > http://windowslive.com/howitworks?ocid=TXT_TAGLM_WL_t1_hm_justgotbett... > > > -- -- Donald Shankin Computer Engineering Undergrad Blue Marble Security Member IEEE Vice Chair, MTU Chapter NSBE Telecommunications Chair, MTU Chapter CAEL Partner (507) 301-2499 dtsha...@mtu.edu dshan...@gmail.com -- --~--~-~--~~~---~--~~ 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: relays?
You could get some cheap standard 24v (marine?) relays, and turn them on/off from your RC receiver. Don't connect the receiver output directly to the relay; use a BJT or a MOSFET between them. Nice and cheap On Tue, Jan 20, 2009 at 11:43 AM, Chrysanthos Kanellopoulos < xchr...@otenet.gr> wrote: > > > Is there a trick that will do the same job for cheap? > > > The generic term is "R/C Switch", which will point to lots of different > > products that do the same thing. Most use relays, some use SSRs ... all > > seem overly expensive for what they do :-) > > > > Frank P. > > > > > > > > > > > __ NOD32 3434 (20080911) Information __ > > > > This message was checked by NOD32 antivirus system. > > http://www.eset.com > > > > > > > > > -- -- Donald Shankin Computer Engineering Undergrad Blue Marble Security Member IEEE Vice Chair, MTU Chapter NSBE Telecommunications Chair, MTU Chapter CAEL Partner (507) 301-2499 dtsha...@mtu.edu dshan...@gmail.com -- --~--~-~--~~~---~--~~ 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: Wheels, wheels and more wheels!
I'm always looking for a new method or jig...care to elaborate or will we need to sign up for that workshop at the expo? Tom On Jan 20, 2009, at 2:22 PM, Steve Tyng wrote: > > Plywood wheels can be very easily made on a power mitersaw. > > Steve Tyng > > > On Jan 18, 7:43 pm, Xirus wrote: >> Everybody hates making them. Especially if you have a lot of them to >> make. >> >> OK. So, I will soon be needing to make wheels. Now at 1/4 scale >> buying >> wheels is out of the question. I was thinking of making one wooden >> wheel plug and making several molds out of it. I can then use the >> molds to make more of the exact wheel. This is time consuming though. >> And I'm not quite sure what materials to use. >> >> I don't have a lathe, And I don't think I can justify to the wife why >> I need one. The tank in question is a 1/4 scale Tiger II and the >> wheels need to be 7-3/4" to 8" in diameter and I would like them to >> look realistic as well. I can compromise on the look a bit I guess. >> >> Does anyone have any suggestions? I was considering cutting out 36 >> discs and using 8" poly pipe as the tire just like Dave Manson's >> tanks >> from Scaledtanks.com > > --~--~-~--~~~---~--~~ 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: Wheels, wheels and more wheels!
Plywood wheels can be very easily made on a power mitersaw. Steve Tyng On Jan 18, 7:43 pm, Xirus wrote: > Everybody hates making them. Especially if you have a lot of them to > make. > > OK. So, I will soon be needing to make wheels. Now at 1/4 scale buying > wheels is out of the question. I was thinking of making one wooden > wheel plug and making several molds out of it. I can then use the > molds to make more of the exact wheel. This is time consuming though. > And I'm not quite sure what materials to use. > > I don't have a lathe, And I don't think I can justify to the wife why > I need one. The tank in question is a 1/4 scale Tiger II and the > wheels need to be 7-3/4" to 8" in diameter and I would like them to > look realistic as well. I can compromise on the look a bit I guess. > > Does anyone have any suggestions? I was considering cutting out 36 > discs and using 8" poly pipe as the tire just like Dave Manson's tanks > from Scaledtanks.com --~--~-~--~~~---~--~~ 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: relays?
Pololu just released this R/C switch for $9.95/$8.95. http://www.pololu.com/catalog/product/752 They also now have a cool R/C multiplexer. I'm not sure what we (tank guys) would need it for, but it's an interesting idea. http://www.pololu.com/catalog/product/721 - Doug -Original Message- From: rctankcombat@googlegroups.com [mailto:rctankcom...@googlegroups.com] On Behalf Of Frank Pittelli Sent: Tuesday, January 20, 2009 1:30 PM To: rctankcombat@googlegroups.com Subject: [TANKS] Re: relays? Chrysanthos Kanellopoulos wrote: > >> The generic term is "R/C Switch" > > Is there a trick that will do the same job for cheap? > Joe Sommer to the rescue again. See http://www.anvilus.com/switch.html for a $15 R/C switch for a single load or http://www.anvilus.com/mrc.html for a $25 R/C switch that can control up to 4 loads. Add some $2 relays to either and the combination will probably be cheaper than anything you find on the Internet. But, if you do find something cheaper, please let everyone else know, including Joe and myself. Our goal is to keep prices low, even if somebody else makes the product. Frank P. --~--~-~--~~~---~--~~ 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: relays?
Does Joe still have anymore of the heavier duty ones? Looking actuate a door lock also. Derek On Tue, Jan 20, 2009 at 12:30 PM, Frank Pittelli wrote: > > Chrysanthos Kanellopoulos wrote: > > > >> The generic term is "R/C Switch" >> >> Is there a trick that will do the same job for cheap? >> > > Joe Sommer to the rescue again. See > >http://www.anvilus.com/switch.html > > for a $15 R/C switch for a single load or > >http://www.anvilus.com/mrc.html > > for a $25 R/C switch that can control up to 4 loads. > > Add some $2 relays to either and the combination will probably be > cheaper than anything you find on the Internet. But, if you do find > something cheaper, please let everyone else know, including Joe and > myself. Our goal is to keep prices low, even if somebody else makes the > product. > >Frank P. > --~--~-~--~~~---~--~~ 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: relays?
Chrysanthos Kanellopoulos wrote: > >> The generic term is "R/C Switch" > > Is there a trick that will do the same job for cheap? > Joe Sommer to the rescue again. See http://www.anvilus.com/switch.html for a $15 R/C switch for a single load or http://www.anvilus.com/mrc.html for a $25 R/C switch that can control up to 4 loads. Add some $2 relays to either and the combination will probably be cheaper than anything you find on the Internet. But, if you do find something cheaper, please let everyone else know, including Joe and myself. Our goal is to keep prices low, even if somebody else makes the product. Frank P. --~--~-~--~~~---~--~~ 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: Wheels, wheels and more wheels!
If you have access to a lathe that's the way to go. Andy - Original Message - From: "Xirus" To: "R/C Tank Combat" Sent: Tuesday, January 20, 2009 12:35 PM Subject: [TANKS] Re: Wheels, wheels and more wheels! A hole saw is definitely out of the question. I think I'll stick to my jigsaw to get my rough cuts and then the drill press to file the wheels to shape and true them up. I have no problem making jigs. On Jan 20, 8:40 am, "callum.king.underw...@googlemail.com" wrote: > The hoe saws at school seem to cope with most materials but they are > only 3" or 4" > > On Jan 20, 2:53 pm, "Adams, Kevin" wrote: > > >http://www.nextag.com/adjustable-hole-cutter/search-html > > > Don't know how well they'd do with thick plywood but I've used cutters > > like these on sheetrock and thin cabinet material. > > > -Original Message- > > From: rctankcombat@googlegroups.com > > > [mailto:rctankcom...@googlegroups.com] On Behalf Of Derek Engelhaupt > > Sent: Monday, January 19, 2009 8:27 PM > > To: rctankcombat@googlegroups.com > > Subject: [TANKS] Re: Wheels, wheels and more wheels! > > > I think a hole saw is out of the question due to the diameter of the > > wheels. He was talking about wheels that are 7" in diameter. My 5" > > hole saw really taxes my drill press on slow speeds or fast. I've > > never seen a hole saw that was 7" in diameter, but it may exist. > > > Derek > > > On Mon, Jan 19, 2009 at 8:18 PM, Modena wrote: > > > > maybe there's an obvious answer to this, but I cant think of it as I > > > bought my wheels, but for those making wheels out of wood or nylon or > > > other soft material, why dont you use a hole saw? Then there's no > > > mucking around with jigs and table saws, and all wheels will be > > > idential - do it in a drill press to ensure a straight up-and-down cut > > > > wouldn't this work? the only trick might be that it can be difficult > > > to extract the "wheel" from inside the hole saw, especially without > > > damaging the "wheel" > > > > On Jan 20, 11:16 am, joseph carrig wrote: > > >> I have used Plasticote in my business with excellent results. As with > > any paint, prep can make or break a paint job. Joe > > > >> From: odysseyslipw...@aol.com > > >> Date: Mon, 19 Jan 2009 12:01:40 -0500 > > >> Subject: [TANKS] Re: Wheels, wheels and more wheels! > > >> To: rctankcombat@googlegroups.com > > > >> In a message dated 1/18/2009 10:35:16 P.M. Eastern Standard > > Time,tan...@gmail.com writes: > > > >> What > > >> about using PVC sheet instead of wood? You could use all the > > >> same > > >> wood working tools to form them. Yes PVC sheet would be > > >> more > > >> expensive, but it does take paint fairly well if it's cleaned > > >> before > > >> painting. Plus they make paints that bond to plastic > > >> called > > >> Plasticote. I painted some plastic faced hard drive carriers > > >> with it > > >> and you can't even scratch it off with a finger nail. 1/4 > > >> scale isn't > > >> cheap;) > > > >> Derek > > >> i have heard of nightmares from people who have used that plsitcote > > >> paint > > > >> Chris, > > >> Odyssey > > >> Slipways > > > >> A Good Credit Score is 700 or Above. See yours in just 2 easy steps! > > > >> _ > > >> Windows Live(tm) Hotmail(R): Chat. Store. Share. Do more with > > mail.http://windowslive.com/howitworks?ocid=TXT_TAGLM_WL_t1_hm_justgotbe > > tt... > > --~--~-~--~~~---~--~~ 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: relays?
Is there a trick that will do the same job for cheap? > The generic term is "R/C Switch", which will point to lots of different > products that do the same thing. Most use relays, some use SSRs ... all > seem overly expensive for what they do :-) > > Frank P. > > > > > > __ NOD32 3434 (20080911) Information __ > > This message was checked by NOD32 antivirus system. > http://www.eset.com > > --~--~-~--~~~---~--~~ 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: Wheels, wheels and more wheels!
A hole saw is definitely out of the question. I think I'll stick to my jigsaw to get my rough cuts and then the drill press to file the wheels to shape and true them up. I have no problem making jigs. On Jan 20, 8:40 am, "callum.king.underw...@googlemail.com" wrote: > The hoe saws at school seem to cope with most materials but they are > only 3" or 4" > > On Jan 20, 2:53 pm, "Adams, Kevin" wrote: > > >http://www.nextag.com/adjustable-hole-cutter/search-html > > > Don't know how well they'd do with thick plywood but I've used cutters > > like these on sheetrock and thin cabinet material. > > > -Original Message- > > From: rctankcombat@googlegroups.com > > > [mailto:rctankcom...@googlegroups.com] On Behalf Of Derek Engelhaupt > > Sent: Monday, January 19, 2009 8:27 PM > > To: rctankcombat@googlegroups.com > > Subject: [TANKS] Re: Wheels, wheels and more wheels! > > > I think a hole saw is out of the question due to the diameter of the > > wheels. He was talking about wheels that are 7" in diameter. My 5" > > hole saw really taxes my drill press on slow speeds or fast. I've > > never seen a hole saw that was 7" in diameter, but it may exist. > > > Derek > > > On Mon, Jan 19, 2009 at 8:18 PM, Modena wrote: > > > > maybe there's an obvious answer to this, but I cant think of it as I > > > bought my wheels, but for those making wheels out of wood or nylon or > > > other soft material, why dont you use a hole saw? Then there's no > > > mucking around with jigs and table saws, and all wheels will be > > > idential - do it in a drill press to ensure a straight up-and-down cut > > > > wouldn't this work? the only trick might be that it can be difficult > > > to extract the "wheel" from inside the hole saw, especially without > > > damaging the "wheel" > > > > On Jan 20, 11:16 am, joseph carrig wrote: > > >> I have used Plasticote in my business with excellent results. As with > > any paint, prep can make or break a paint job. Joe > > > >> From: odysseyslipw...@aol.com > > >> Date: Mon, 19 Jan 2009 12:01:40 -0500 > > >> Subject: [TANKS] Re: Wheels, wheels and more wheels! > > >> To: rctankcombat@googlegroups.com > > > >> In a message dated 1/18/2009 10:35:16 P.M. Eastern Standard > > Time,tan...@gmail.com writes: > > > >> What > > >> about using PVC sheet instead of wood? You could use all the > > >> same > > >> wood working tools to form them. Yes PVC sheet would be > > >> more > > >> expensive, but it does take paint fairly well if it's cleaned > > >> before > > >> painting. Plus they make paints that bond to plastic > > >> called > > >> Plasticote. I painted some plastic faced hard drive carriers > > >> with it > > >> and you can't even scratch it off with a finger nail. 1/4 > > >> scale isn't > > >> cheap;) > > > >> Derek > > >> i have heard of nightmares from people who have used that plsitcote > > >> paint > > > >> Chris, > > >> Odyssey > > >> Slipways > > > >> A Good Credit Score is 700 or Above. See yours in just 2 easy steps! > > > >> _ > > >> Windows Live(tm) Hotmail(R): Chat. Store. Share. Do more with > > mail.http://windowslive.com/howitworks?ocid=TXT_TAGLM_WL_t1_hm_justgotbe > > tt... > > --~--~-~--~~~---~--~~ 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: An option to get tank everyone together and discuss, and have a battle with 1/16th tanks with full battle systems
Apparently there is a new paintball grenade that uses a small water tank that bursts and makes the paint expand and pretty much explode everywhere. I don't see how that would work and I can't find it online. It was a mate that told me about it. On Jan 18, 7:28 pm, Mike Måne wrote: > Yes, they are like giant tank caltrops. By the way, has anybody built a > landmine actually used in a tank battle yet? That would be an interesting > field to consider. > - > > On Sun, Jan 18, 2009 at 3:55 AM, callum.king.underw...@googlemail.com < > > > > callum.king.underw...@hotmail.com> wrote: > > > Hedgehogs are annoying on xbox games. You try blow one up it just tips > > over. > > > On Jan 18, 1:00 am, "Derek Engelhaupt" wrote: > > > Sorry, "bracked" was supposed to be "bracket". Detailed plans on how > > > to build one in 1/6 scale: > > > >http://www.euronet.nl/~idi_bark/ > > > > Derek > > > > On Sat, Jan 17, 2009 at 6:50 PM, Derek Engelhaupt > > wrote: > > > > "Industrially manufactured Czech hedgehogs were made of three L-shaped > > > > metal brackets (L 140/140/13 mm, length 1.8 metres (5 ft 11 in), > > > > weight 198 kilograms (440 lb); later versions: length 2.1 metres (6 ft > > > > 11 in), weight 240 kilograms (530 lb)) joined by sheet metal, rivets > > > > and bolts (or, later in the war, welded together) into a > > > > characteristic spatial three-armed cross." - according to Wikipedia. > > > > >http://en.wikipedia.org/wiki/Czech_hedgehog > > > > > Scale length for each bracked would be 13.83" for the later version. > > > > > Derek > > > > > On Sat, Jan 17, 2009 at 3:55 PM, Joe Sommer > > wrote: > > > > >> On Jan 17, 4:32 pm, funkyne...@ntlworld.com wrote: > > > >>> Could you tell me what is the length of the 2*2 members that make the > > > >>> hedgehogs? > > > >>> They look quite long , about 16inch Im guessing from the picture. > > > >>> with an average tank ground clearance of 2-4 inch why do they need to > > > >>> be so large? > > > > >> Ask Mr. Tyng. > > > > >> The Marlows actually anchor them into the ground with steel rebar (no > > > >> kidding). > > > > >> Joe > > -- > -Mike Måne @http://moonrcprojects.googlepages.com --~--~-~--~~~---~--~~ 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: relays?
Chris Malton wrote: > I think you'd be looking for a BattleSwitch or PicoSwitch from Dimension > Engineering. At least, I'm using a BattleSwitch to trigger a car door > lock actuator and it works very well. The generic term is "R/C Switch", which will point to lots of different products that do the same thing. Most use relays, some use SSRs ... all seem overly expensive for what they do :-) Frank P. --~--~-~--~~~---~--~~ 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: Wheels, wheels and more wheels!
The hoe saws at school seem to cope with most materials but they are only 3" or 4" On Jan 20, 2:53 pm, "Adams, Kevin" wrote: > http://www.nextag.com/adjustable-hole-cutter/search-html > > Don't know how well they'd do with thick plywood but I've used cutters > like these on sheetrock and thin cabinet material. > > -Original Message- > From: rctankcombat@googlegroups.com > > [mailto:rctankcom...@googlegroups.com] On Behalf Of Derek Engelhaupt > Sent: Monday, January 19, 2009 8:27 PM > To: rctankcombat@googlegroups.com > Subject: [TANKS] Re: Wheels, wheels and more wheels! > > I think a hole saw is out of the question due to the diameter of the > wheels. He was talking about wheels that are 7" in diameter. My 5" > hole saw really taxes my drill press on slow speeds or fast. I've > never seen a hole saw that was 7" in diameter, but it may exist. > > Derek > > On Mon, Jan 19, 2009 at 8:18 PM, Modena wrote: > > > maybe there's an obvious answer to this, but I cant think of it as I > > bought my wheels, but for those making wheels out of wood or nylon or > > other soft material, why dont you use a hole saw? Then there's no > > mucking around with jigs and table saws, and all wheels will be > > idential - do it in a drill press to ensure a straight up-and-down cut > > > wouldn't this work? the only trick might be that it can be difficult > > to extract the "wheel" from inside the hole saw, especially without > > damaging the "wheel" > > > On Jan 20, 11:16 am, joseph carrig wrote: > >> I have used Plasticote in my business with excellent results. As with > any paint, prep can make or break a paint job. Joe > > >> From: odysseyslipw...@aol.com > >> Date: Mon, 19 Jan 2009 12:01:40 -0500 > >> Subject: [TANKS] Re: Wheels, wheels and more wheels! > >> To: rctankcombat@googlegroups.com > > >> In a message dated 1/18/2009 10:35:16 P.M. Eastern Standard > Time,tan...@gmail.com writes: > > >> What > >> about using PVC sheet instead of wood? You could use all the > >> same > >> wood working tools to form them. Yes PVC sheet would be > >> more > >> expensive, but it does take paint fairly well if it's cleaned > >> before > >> painting. Plus they make paints that bond to plastic > >> called > >> Plasticote. I painted some plastic faced hard drive carriers > >> with it > >> and you can't even scratch it off with a finger nail. 1/4 > >> scale isn't > >> cheap;) > > >> Derek > >> i have heard of nightmares from people who have used that plsitcote > >> paint > > >> Chris, > >> Odyssey > >> Slipways > > >> A Good Credit Score is 700 or Above. See yours in just 2 easy steps! > > >> _ > >> Windows Live(tm) Hotmail(R): Chat. Store. Share. Do more with > mail.http://windowslive.com/howitworks?ocid=TXT_TAGLM_WL_t1_hm_justgotbe > tt... --~--~-~--~~~---~--~~ 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: relays?
I think you'd be looking for a BattleSwitch or PicoSwitch from Dimension Engineering. At least, I'm using a BattleSwitch to trigger a car door lock actuator and it works very well. Chris Chrysanthos Kanellopoulos wrote: > Anybody knows how to search for RC relays that turn current on and off from a > channel on my RC system? Say, they are *normally* used to switch on and off > an RC plane's lights. WHat should they be called in English? I did a search > for relay, relais, and switch on HobbyCity with no success. > > Thanks, > > Chrys > > > > > --~--~-~--~~~---~--~~ 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: relays?
http://www.robotmarketplace.com/marketplace_teamdelta_rc.html I think this is what your looking for. Andy - Original Message - From: Chrysanthos Kanellopoulos To: rctankcombat@googlegroups.com Sent: Tuesday, January 20, 2009 11:07 AM Subject: [TANKS] relays? Anybody knows how to search for RC relays that turn current on and off from a channel on my RC system? Say, they are *normally* used to switch on and off an RC plane's lights. WHat should they be called in English? I did a search for relay, relais, and switch on HobbyCity with no success. Thanks, Chrys --~--~-~--~~~---~--~~ 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] relays?
Anybody knows how to search for RC relays that turn current on and off from a channel on my RC system? Say, they are *normally* used to switch on and off an RC plane's lights. WHat should they be called in English? I did a search for relay, relais, and switch on HobbyCity with no success. Thanks, Chrys --~--~-~--~~~---~--~~ 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: Wheels, wheels and more wheels!
http://www.nextag.com/adjustable-hole-cutter/search-html Don't know how well they'd do with thick plywood but I've used cutters like these on sheetrock and thin cabinet material. -Original Message- From: rctankcombat@googlegroups.com [mailto:rctankcom...@googlegroups.com] On Behalf Of Derek Engelhaupt Sent: Monday, January 19, 2009 8:27 PM To: rctankcombat@googlegroups.com Subject: [TANKS] Re: Wheels, wheels and more wheels! I think a hole saw is out of the question due to the diameter of the wheels. He was talking about wheels that are 7" in diameter. My 5" hole saw really taxes my drill press on slow speeds or fast. I've never seen a hole saw that was 7" in diameter, but it may exist. Derek On Mon, Jan 19, 2009 at 8:18 PM, Modena wrote: > > maybe there's an obvious answer to this, but I cant think of it as I > bought my wheels, but for those making wheels out of wood or nylon or > other soft material, why dont you use a hole saw? Then there's no > mucking around with jigs and table saws, and all wheels will be > idential - do it in a drill press to ensure a straight up-and-down cut > > wouldn't this work? the only trick might be that it can be difficult > to extract the "wheel" from inside the hole saw, especially without > damaging the "wheel" > > > On Jan 20, 11:16 am, joseph carrig wrote: >> I have used Plasticote in my business with excellent results. As with any paint, prep can make or break a paint job. Joe >> >> From: odysseyslipw...@aol.com >> Date: Mon, 19 Jan 2009 12:01:40 -0500 >> Subject: [TANKS] Re: Wheels, wheels and more wheels! >> To: rctankcombat@googlegroups.com >> >> In a message dated 1/18/2009 10:35:16 P.M. Eastern Standard Time,tan...@gmail.com writes: >> >> What >> about using PVC sheet instead of wood? You could use all the >> same >> wood working tools to form them. Yes PVC sheet would be >> more >> expensive, but it does take paint fairly well if it's cleaned >> before >> painting. Plus they make paints that bond to plastic >> called >> Plasticote. I painted some plastic faced hard drive carriers >> with it >> and you can't even scratch it off with a finger nail. 1/4 >> scale isn't >> cheap;) >> >> Derek >> i have heard of nightmares from people who have used that plsitcote >> paint >> >> Chris, >> Odyssey >> Slipways >> >> A Good Credit Score is 700 or Above. See yours in just 2 easy steps! >> >> _ >> Windows Live(tm) Hotmail(R): Chat. Store. Share. Do more with mail.http://windowslive.com/howitworks?ocid=TXT_TAGLM_WL_t1_hm_justgotbe tt... > > > --~--~-~--~~~---~--~~ 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] Lithium Battery from China
I took the plunge and ordered a 24V 20AH LifePO4 battery from ebay, China supplier. Ebay member id was power_battery_a123 . They were fine to deal with, built the battery to order and shipped fairly quickly. There were three choices of dimensions, 70x180x270, 70x345x140, 180x140x140 (I went with this last one). This is no frills - the pack is wrapped in thick tape, but I can assume its many cells connected together under that tape. Wires coming out of the pack into a separate BMS, two wires for power coming out of the BMS and a separate wired IEC connector for connecting to the supplied 3AH charger I havent tested the battery yet apart from connecting a multimeter which showed 26.4v I haven't weighed it, but they say 6.3kg's for this model It cost USD$180 + USD$88 for shipping (DHL tracked) to Australia. A genuine LifeBatt 24V 20AH was quoted locally at AUD$1400 I am working on the drive control electronics for my tank at the moment, and when they're all connected up I'll be able to turn the M01's over using this battery. Pics of the battery and bits are here: http://www.holnet.net/images/tank/20090120/ --~--~-~--~~~---~--~~ 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 -~--~~~~--~~--~--~---
