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Unread 06-01-2003, 09:26
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Paul Copioli Paul Copioli is offline
President, VEX Robotics, Inc.
FRC #3310 (Black Hawk Robotics)
Team Role: Engineer
 
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Working On It.

I have contacted the motor manufacturer's for the following motors:

1. Drill Motor
2. Atwood Chiaphua
3. F-P motor
4. Window Motor


I suspect that the globe motor is the same as last year (look in Dr. Joes Motor Spreadsheet in the White Papers section).

I also suspect that the only difference in the Atwood is the shaft, but will confirm. The Atwood from last year has the following performance specs:
1. Stall Torque = 2.2 N-m
2. Free Speed = 5500 RPM
3. Stall Amps = 107
4. Free Amps = 2.3

The Atwood Shaft diameter is: ~7.92mm. This is probably an 8mm shaft undersized by 0.05 to 0.10 mm. The keyway is made for a standard 2mm square key (included in kit).

I want to warn you about the F-P motor!!! The specs in the FIRST manual are for lasts year's Johnson Electric Motor, not the ones that I pulled out of the kit. Our F-P motor only had 19 teeth, not 21 and was not the same motor as last year. I have already contacted the appropriate people at the motor manufacturer and should have the info by the end of the day tomorrow.

As soon as I confirm, I will post all specs and drawings that I receive.