Society of Robots - Robot Forum
Mechanics and Construction => Mechanics and Construction => Topic started by: adaschau2 on March 11, 2010, 10:57:37 AM
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Hi everyone. I am currently building a vehicle for a competition but I can't seem to find the right wheels. Between each pair of wheels on this vehicle, I need a single, solid axle. I would like the wheels to be rubber because the vehicle has to move quickly and reverse direction. I also need the axle and the wheel to fall within a certain ratio (3 to 64 or lower). For instance, I found an 8" diameter wheel and 1/4" axle would give me the right ratio, but I can't find any wheels that will fit that diameter axle. Does anyone have any suggestions? I'm open to changing wheel type, but I don't think I can avoid having a strict ratio. Thank you!
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That sounds like a clever optimization competition yea?
The reason it's hard to find that kind of wheel is because it would easily break the tiny axle. Just drill a hole in its proper axle and weld the thin one in. Then check your maths to make sure it doesn't snap under all that torque!
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If the wheels you do find are for a larger diameter axle then you could fit a bushing into the wheel to reduce it diameter. That should fit within the rules.