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 The [FIRST Robotics] competition is a friendly / gentleman's sort of sport... It is only a forum to put our machines to the test, and see how well we did against what WE set out to do -- not to see which team can build the best robot. - KenWittlief [more] |
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By: wyrzykowskij1
New: 14-01-2015 15:38
Updated: 14-01-2015 15:38
Views: 1906 times
This is our 2015 drive module. The plate that the CIM is mounted to is laser cut 0.25 sheet and the rest is 0.10 sheet. It runs a 6.46 reduction from the CIM to the gear, which is multiplied by 2 with an 18 tooth to 36 tooth belt system. this will put us around 14 ft/s theoretical, with two of these in the robot and a 6 inch wheel on each.
Discussion
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14-01-2015 18:31
asid61
Re: pic: Crevolution 2015 Drive Module
Looks pretty good, although personally I just like using 1/4" or 3/16" thick for gearboxes and such (more thickness for press fits and counterbores).
Are you planning on tensioning the belt, or are you just going C-C? If you did a slight redesign, you could tension the belt like 192 did for their 2014 gearbox (look it up, pictures on CD).
14-01-2015 18:50
Ether
Re: pic: Crevolution 2015 Drive Module
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Originally Posted by wyrzykowskij1
with two of these in the robot
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Originally Posted by wyrzykowskij1
6.46 reduction from the CIM to the gear ... 18 tooth to 36 tooth belt system ... 6 inch wheel
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14-01-2015 20:55
Team3266Spencer
Re: pic: Crevolution 2015 Drive Module
I'm getting more like 10.8+/-1.1 FPS (using the no load speed for the CIM, 5310+/-10% RPM).
14-01-2015 21:29
wyrzykowskij1
Re: pic: Crevolution 2015 Drive Module
Oh yes, I apologize. The 14 fps was another calculation that I made. Also, yes, I'm just planning on doing the computed distance from the West Coast Products distance calculator.
14-01-2015 21:54
Squeakypig
Re: pic: Crevolution 2015 Drive Module
Those cut outs in the front and back are SICK.
This is what happens when I miss 1 meeting.
14-01-2015 22:15
wyrzykowskij1
Re: pic: Crevolution 2015 Drive Module
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Originally Posted by Squeakypig
Those cut outs in the front and back are SICK.
This is what happens when I miss 1 meeting. |
14-01-2015 22:17
wyrzykowskij1
Re: pic: Crevolution 2015 Drive Module
[quote=Ether;1428333]What are the other two wheels?
These modules are to be mounted in the front of our chassis, giving us 2 total driven wheels on the robot and a total 2 CIM drivetrain.
15-01-2015 20:53
tr6scott
Re: pic: Crevolution 2015 Drive Module
What ether is asking, is this segway? 😀
Any provision for encoders on this, or just letting programming team guess...
15-01-2015 21:45
asid61
Re: pic: Crevolution 2015 Drive Module
[quote=wyrzykowskij1;1428478]
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Originally Posted by Ether
What are the other two wheels?
These modules are to be mounted in the front of our chassis, giving us 2 total driven wheels on the robot and a total 2 CIM drivetrain. |
15-01-2015 22:02
Team3266Spencer
Re: pic: Crevolution 2015 Drive Module
Why did you decide to use belts?
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