You can find some smaller gear motors with "mounting hubs" for attaching the motors to the wheels at www.servocity.com. They have a lot of drive train and other mechanical parts for smaller scale vehicles, although no tracks.
You might want to check some of the other vendors for robot parts such as: Banebots Superdroids Lynxmotion Trossen Robotics RobotMarketplace RobotShop There are some products out there for making smaller scale tracked vehicles. Tamiya makes a small track and drive system, although it looks rather flimsy. Another is: http://www.e-clec-tech.com/tankbotxl2n1.html Lynxmotion also has a track set based on an industrial conveyor belt system. On Dec 2, 3:44 pm, Peter Pišljar <[email protected]> wrote: > steve and james, thanks a lot. > > the tools i have ... a lot to work with wood, but not much to work with > metal. > sure i have a drill, but the shaft i plan to use is to thin for drilling i > think. do you think just using a sleeve and some glue would work ? thats > basicly how the gear wheel is usualy attached > to the small dc motors right ? > > On Wed, Dec 2, 2009 at 9:21 PM, whitney james <[email protected]> wrote: > > What tools do you have? If you can find a sleeve that fits around the > > shaft tight enough, you can slip it half way on, drill a hole through, and > > secure it with a simple bolt. Then, your shaft extension slips into the > > other end, and is secured the same way. > > If you want to make sure there is no play, goop the inside with epoxy > > before you put on the sleeve. > > > ------------------------------ > > Date: Wed, 2 Dec 2009 21:06:56 +0100 > > Subject: Re: [TANKS] some information needed .... > > From: [email protected] > > To: [email protected] > > > hello. > > > thanks for the replies, but maybe i should define my question a little bit > > more. > > > i know about my electronics, bout controler. yes i plan to use two motors. > > my only problem is building the drivetrain. > > i have idea how i want it to be (based on the tanks on this site). but i > > have more general problems, like atm: > > how to make drive shaft of my motor longer ? i would like to extend it a > > little, but have no idea how to efficently do this. > > duck tape idea doesnt count :) wleding is out of option. > > > On Wed, Dec 2, 2009 at 8:27 PM, Thomas Lum <[email protected]> wrote: > > > >here's my list of topics i would like to know more about : > > > >-- motors ? i saw everybody here's using big motors with a lot of > > >power (120W and more) > > > but your models are 1/6, so thats a LOT bigger. how could i like > > >calculate what torque would i need, what > > > rpm, for my tank. i currently have 2 stepper motors, with 50mN/m (i > > >think thats like 40inchlbs, not sure tho) > > > but they seem a little bit to small. > > > First tip, it's easier for us to build on 1/6th scale because almost all > > the hard work has been done for us. Most know what works and what doesn't. > > If you blaze out into a different direction, you are going to have to buy > > and test a lot of things yourself. Your motors depend of your tank weight. > > Make your build modular so you can switch something out easily if it > > doesn't work. > > > >-- drive shafts, coupling, connecting wheels. > > > basicly i have no idea how to do that. i know what i would need to > > >do in theory, but how exactly do you connect > > > another longer shaft on that small shaft of a dc motor ? (its too > > >small to drill thru or anything) ? > > > Most of the time the motor has a shaft that you connect either a pulley or > > sprocket to. You then use belt or chain to attach that to either a second > > belt or pulley, or sometimes directly to the main axle shafts. > > > how do > > > i connect non-powered wheels (the middle ones) so they can turn on > > >the saft, > > > Bearings and lock collars > > > and how to connect the > > > powered wheels so they cant turn on the shaft ? > > > Usually you use set screws, keyed shaft or you have to fabricate something > > to mate the shaft to the wheel (I think the Cromwell, Tiger or Comet has a > > good pic of this) > > > all little things > > >like this, basicly some building manuals, tutorials, > > > books, anythings with pictures would come in handy. > > > Read every tank build on the website, that is a bible of building. Also > > look at the tanks that are old and still going. Cromwell, Comet, Tiger, > > Hetzer, SU-100, Bad Kitty, and a few more I am forgetting. Anyone (almost) > > can build a website tank that never goes to a battle (me for instance), but > > those tanks I mentioned are punished and still run every battle. They are a > > guide to what works well. > > > Also anything Frank says is gospel. > > > -- > > You are currently subscribed to the "R/C Tank Combat" group. > > To post a message, send email to [email protected] > > To unsubscribe, send email to [email protected] > > 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 [email protected] > > To unsubscribe, send email to [email protected] > > Visit the group athttp://groups.google.com/group/rctankcombat > > ------------------------------ > > Windows 7: Unclutter your desktop. Learn > > more.<http://www.microsoft.com/windows/windows-7/videos-tours.aspx?h=7sec&s...> > > > -- > > You are currently subscribed to the "R/C Tank Combat" group. > > To post a message, send email to [email protected] > > To unsubscribe, send email to [email protected] > > 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 [email protected] To unsubscribe, send email to [email protected] Visit the group at http://groups.google.com/group/rctankcombat
