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Unread 10-02-2015, 13:53
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Team 288 - Spare Parts
FTC #0288 (Spare Parts)
Team Role: Coach
 
Join Date: Oct 2008
Rookie Year: 2004
Location: St. Louis
Posts: 32
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Re: Fixing AndyMark's Swerve & Steer Module Problem

2468: How did you attach your 3D printed gear to the shaft of the encoder?

We centered our encoders manually before giving the robot to the programming team. First we pinned the wheel in the "zero" or straight forward/reverse direction. Then we powered up the absolute encoder and hooked up a voltmeter to the output of the encoder. We turned the encoder until it was at very very close to 0 volts (most of them were at 10mV) then we installed the gear and locked it in place. The play in the gear translated to the wheels being in their "zero" position and the encoder going from just above zero to just below zero volts. This allowed us to give it to the programming team with no need to correct for the encoder.

Your method seems like a much easier hardware solution.

BTW: It's always great to see other teams using aircraft Clecos to build their robot. We use them on everything! We've even sent the bot onto the field held together with them temporarily.
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Charlie Blair
Electronics Instructor at Gateway Institute of Technology High School
Head Coach for FTC teams at Gateway Institute of Technology High School since 2005
Planning Committee Member, St. Louis Regional FTC
Mentor to Team 931 Perpetual Chaos since 2004
FRC Volunteer
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