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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− | * | + | * They 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. | ||
+ | |} <!-- End of tasks table; DO NOT REMOVE --> | ||
− | | | + | == Action and idea Journal== |
+ | <gallery widths=250 heights=250 perrow=3> | ||
+ | image:ResQ_151104.jpg|Rendered SolidWorks model showing climber dumper (for autonomous) | ||
+ | image:FTC7314_151104-1.jpg|AndyMark drive motors in place | ||
+ | image:FTC7314_151104-2.jpg|Installing platform and elevation worm gear drive | ||
+ | image:FTC7314_151104-3.jpg|Electrical panel in place | ||
+ | image:FTC7314_151104-4.jpg| | ||
+ | image:FTC7314_151104-5.jpg|Chassis weight right now (lb<sub>m</sub>) | ||
+ | image:FTC7314_151104-6.jpg|Robot weight-in | ||
+ | </gallery> | ||
<br /> | <br /> |
Latest revision as of 00:33, 17 November 2015
Competition Season Meeting
Meeting Date | Meeting Time | Location | Attendees |
---|---|---|---|
4-November-2015 | 6:00-9:00pm | TCHS Brandywine | Josh |
Objectives / Systems | Hypotheses, tests, observations, conclusions, plans |
---|---|
Complete Drive System |
|
Tasks | Reflections |
---|---|
Replace Tetrix Drive Motors with am-2964a's |
|
Action and idea Journal
Recorded by: | Date: | Journal Editor: | Date: |
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