Joining 2 dif. motors

[JVN]

Originally Posted by Matt Adams

This is incorrect.

Atwood at normal load (from 2003 spec sheet) is 4378 RPM.
Free speed is 5,500.

Free speed on Bosch is 19,670 RPM as Sarah stated for normal load speed.

Just wanted to make sure that the right data is out there.

Check it out here:
http://www.usfirst.org/robotics/2003/specsheets.htm


Matt

Advice to the rookies:
Don't sweat the numbers TOO much... (you still need to calculate!)
These values vary so much from motor to motor, and the specs aren't 100% accurate anyways...
Using a free speed of ~5,500 for the Chip, and ~20,000 for the Bosch is fine. Any more detail than that and you're wasting your time. (Motor performance will change over time as well).

Don't believe me? Perform some tests... you'll be surprised by what you find.

If you get a 90% speed match between combined motors, you're probably doing okay.