Need help in deciding the configuration for an off season chassis prototype

[orangemoore]

Originally Posted by lamk

We used the long configuration AM14u for aerial assist. It got us to St. Louis. As an off season activity I would like to prototype a 3 cim 2 speed 6 wheel west coast drive. I am leaning towards a 28 x 28 square configuration. My student wants to stick with the 23x32 long configuration. Any suggestions.

I hope you mean 6 cims in total and not just 3.

[Billfred]

Just a notion: Traditional West Coast Drive is just (relatively cheap) 1x2 tubing, creatively machined and assembled. Do you have the resources to machine the tubing, then transplant the gearboxes/wheels/axles to try it both ways?

[asid61]

Make sure you have somebody who can do the machining. Also, make sure your chain tensioning is good. We had a lot of problems because we did not use screw tensioning or cam tensioning. We did a thing with slots, pulling, and locknuts. Bad plan.

[ehfeinberg]

Originally Posted by asid61

Make sure you have somebody who can do the machining. Also, make sure your chain tensioning is good. We had a lot of problems because we did not use screw tensioning or cam tensioning. We did a thing with slots, pulling, and locknuts. Bad plan.

Have you seen these?

We used them this past year, and were nothing but happy with their performance. Not only do they provide easy tensioning by just sliding the blocks in and out, but they only require a drill press for machining.

[lamk]

Originally Posted by ehfeinberg

Have you seen these?

We used them this past year, and were nothing but happy with their performance. Not only do they provide easy tensioning by just sliding the blocks in and out, but they only require a drill press for machining.

That's exactly what I am planning to use!!

[lamk]

Originally Posted by orangemoore

I hope you mean 6 cims in total and not just 3.

Yes 6 cim total 3 cim per gear box