Difference between revisions of "FTC 7314 Engineering Notebook 2015-11-04"
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!Objectives / Systems !! Hypotheses, tests, observations, conclusions, plans | !Objectives / Systems !! Hypotheses, tests, observations, conclusions, plans | ||
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− | | ''' | + | | '''Complete Drive System''' |
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− | * | + | * We replaced the (2) Tetrix drive motors with (2) am-2964a motors, thereby gaining integral encoders with the new motors. |
− | + | * It is clear that the worm gear - output shaft connection on the forward drive extension elevation is prone to slippage. This connection is achieved via (2) small set screws on a 3/16" steel shaft. Frankly, this connection is not likely to be adequate or reliable. | |
− | + | * Plan for the worm gear output is to purchase the tooling to enable us to replace the 3/16" output shaft with a 6mm shaft ant to use a 2mm key to fix the worm gear and shaft in rotation. Tools required are a 2mm end mill and a 2mm broach with 6mm bushing. | |
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− | * | ||
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|} <!-- End of tasks table; DO NOT REMOVE --> | |} <!-- End of tasks table; DO NOT REMOVE --> | ||
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!Tasks !! Reflections | !Tasks !! Reflections | ||
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− | | ''' | + | | '''Replace Tetrix Drive Motors with am-2964a's''' |
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− | * | + | * Not a regular FTC Meeting. Josh is present. Working with mentor Gary Deaver. |
+ | * Driver for this work is the integral encoder in the AndyMark motors. Gear reduction is 40:1. | ||
+ | * Had to cut shaft on right side drive motor to fit. No modification needed to left side motor. | ||
+ | * Spacers were relocated for fit. | ||
+ | * And a new platform cut. | ||
+ | * We used new (longer) spacers to support the platform. Old spacers reclaimed from FRC 1640 pivot modules. | ||
+ | * Temporarily used shcs's for the platform. Need to replace with fhsc's. | ||
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| '''Task in bold''' | | '''Task in bold''' |
Revision as of 00:41, 7 November 2015
Competition Season Meeting
Meeting Date | Meeting Time | Location | Attendees |
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4-November-2015 | 6:00-9:00pm | TCHS Brandywine | Josh |
Objectives / Systems | Hypotheses, tests, observations, conclusions, plans |
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Complete Drive System |
|
Tasks | Reflections |
---|---|
Replace Tetrix Drive Motors with am-2964a's |
|
Task in bold |
|
Action and idea Journal
Recorded by: | Date: | Journal Editor: | Date: |
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