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Unread 08-04-2004, 00:34
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Post Re: Joining 2 dif. motors

Quote:
Originally Posted by rforystek
It turned out running well for us, but the CIM's might have been running a little too fast, so if I used a concept like this again, I would change the gears around a little to acquire a slower output speed.

Here's a crude diogram of out Gearbox

CIM MOTOR ---12 tooth gear
.......................60 tooth gear----------16 tooth gear
.................................................. ......70 tooth gear--wheel!
In general, I've found it much more efficient to combine a pair of motors, and then run this combined set out via some sprockets to the wheels. This ensures that one wheel won't ever try to run a bit faster than the others. If you try to run them individually, your motor torque and speed outputs vary as the speed of your robot changes. Fortunately, the Chips and Drills happen to have roughly the same trip points when matched at free speed, which is why I'd imagine a lot of people don't notice it.

Matt
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Matt Adams - Engineer at Danaher Motion
Team 1525 - Warbots - Deerfield High School