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For the first time ever, we are building a practice bot. Here is a cool shot of the practice chassis.
For more pictures from our 2017 season visit: https://www.instagram.com/airstrike78/
07-02-2017 20:03
Cothron TheissI like that gearbox a lot! I looked through the album on instagram and saw the side view of it. Any chance you'll be releasing CAD at any time?
Also, loving the 8 wheel WCD.
EDIT - Woops. I did not notice that was the EVO.
07-02-2017 21:43
ollien
What EVO ratio do you have? We wanted a 4.77 and 10.86 but they never came in stock, so we just went for a ball shifter.
07-02-2017 22:31
Akash RastogiMmm always love your robots. Can't wait to see this thing perform, Rick!!
07-02-2017 22:53
Nick Lawrence
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I like that gearbox a lot! I looked through the album on instagram and saw the side view of it. Any chance you'll be releasing CAD at any time?
Also, loving the 8 wheel WCD. EDIT - Woops. I did not notice that was the EVO. |
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What EVO ratio do you have? We wanted a 4.77 and 10.86 but they never came in stock, so we just went for a ball shifter.
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07-02-2017 23:33
Andrew Schreiber
07-02-2017 23:42
jwfossLooking good guys, nice and clean design.
07-02-2017 23:54
D_PriceAs Nick said they are beautiful.
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Looking through 78's Instagram reveals that these gearboxes are not EVO Shifters, but in fact very elegant single speed gearboxes. They just happen to have similar-looking pockets.
Beautiful, simple drivetrain, Rick! -Nick |
08-02-2017 10:39
Rick
Nick is correct, these are not shifting gearboxes. Our team strives for simple, and I think this drivetrain may be our go to for flat floor games in the future.
Our fall practice drive train used the Single Speed, Single Reduction Gearboxes from Vex:

Our gearbox plates are essentially the same thing except instead of sheet metal we went with 1/4" waterjet plate. The gearboxes have a mount for encoders similar to the Vex design and mount to both the drive rails and bumper rails. We are running a 6 motor drive train for the first time with 4 CIMs and 2 Mini-CIMs.
A big thanks to 558 for the inspiration on this design.