Quote:
Originally Posted by AdamHeard
looking good, just a few questions.
Is the switch to 6" wheels so they can be entirely COTS?
Have you considered running 2 CIMs per side? If so, would you just mirror one of those CIM mounts to the other side?
Where do you foresee attaching mechanisms/superstructure?
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The switch to 6" wheels came from a desire to use dead axles. It's a bit more challenging to make dead axles work with 4" diameter wheels -- as there's less area in which to bolt sprockets to the wheels and the also because the chain, potentially, runs very low to the ground. It depends upon sprocket choices, of course.
If we chose to add a second CIM motor to the drive, I'd have to reevaluate the use of the Dewalt transmissions. I haven't yet compared the resources needed for two Dewalt transmissions per side against those required for, say, a single AM setup.
Mechanisms will also bolt to the 80/20. For the past two years, we've built structures that are pinned in place rather than bolted, so that we can remove things quickly.
Quote:
Originally Posted by techtiger1
Madison as always great cad work. I like the simplicity of the design and wish my team would try Dewalt transmissions but anyway. I do have one question I noticed you always use omni wheels up front why ? I don't have an issue with it as it seems to work fine for you but I'm just wondering. Looks great can't wait to see it in real life if 488 and 1251 both make it back to Championship in 09. Good luck and nice slick designing.
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We've used omniwheels in all four corners for the last several years. It makes the machine very easy to maneuver, but we sacrifice some ability to stay put. It's worked well with our strategy so far, but we've always retained some ability to swap in traction wheels. I avoid the typical "drop" because that rocking motion can translate to some significant movement at the end of appendages and it makes controlling them that much harder.