Were we ever limited on the amounts of non-CIM motor

[Mike Betts]

Andre,

When you stop to investigate, many gear efficiencies (or inefficiencies) may surprise you. For example:

The Globe motor (KOP a few years ago) had a 77% gearbox efficiency (23% loss). Granted, it was multiple stage (117:1) but it was probably better designed, integrated and implemented than anything you will accomplish in your school's machine shop.

Another example: A Globe gearbox/motor I used in another robotic competition last year (65:1 gear ratio) sported a gearbox efficiency of 66% (34% loss).

Also note that these examples were manufacturer's numbers and likely optimistic...

When we learn physics, we almost always "ignore friction". The real world never does...

Regards,

Mike