Simple 2-Speed 6WD for teams with few manufacturing resources

Originally Posted by apalrd

What are you calculating the ratio with (What reductions in each stage, and what motor free speed, and speed loss constant?)

I get 3.86 and 9.86 ft/sec with no speed loss and 5310 CIM free speed, for reference.

The stages of reduction are:
12:40 CIM->cluster shaft
15:48 OR 28:35 cluster shaft->shift shaft
16:36 chain

It seems like a lot of chain reduction with 4" wheels. The ratio chosen seems to be perfect for 6" wheels (5.79 and 14.83 ft/sec with no speed loss, 4.69 and 12.01 with speed loss, 46 amp wall-push in low gear)

Well that seems kinda low. My 22 fps is definitely wrong, and I've unfortunately lost the paper I used to calculate it (off to clean my room now!).

Madison, is Apalrd right? This looks like one of the best kitbots I've seen, but 10 fps and 3 fps are not my cup of tea. :|