Team 254 Presents: Dropshot Technical Binder. The binder can be found here. If you have any questions or want more specifications, feel free to ask!
Wow, this is an amazing resource, just goes to show how prepared and well structured your team is. 
This is an amazing look into the development of an effective robot.
Incredible documentation of an incredible robot, as always :).
Do you have any pictures of the camera and camera mount with the green light off?
Thanks for posting this! I was glad I got to take a peek at it at champs. Will you be releasing code at some point?
I was going to do my homework, and then I saw this, well… 254 won over. Best reading I have done in ages. ::rtm::
Are those dead LEDs in your ring on the last page?
Awesome robot as usual.
I’ve been curious about your turret gear. It looks similar to 1114’s from 2012, but from my guesstimates, it’s 20dp @ 16.1" Pitch Diameter whereas 1114 had a much larger geartooth (something like 10-12dp). One of my main concerns is actually having our waterjet sponsor cut teeth that small (I’ve been contemplating turrets lately). Was it relatively easy for your sponsor to do or was there anything special you had to do to the gear design to make it easier to manufacture? I’m guessing going to 0.125" aluminum made it easier, but is that enough?
What do you use as a thrust bearing for your turret? Also, why do you only use two CIMs in your drive? You need moar pushes
We did 24DP gears in 2012 for turret (and some other systems) and they worked just fine w/ our waterjet sponsor.
254 did 20DP this year to mate w/ vex gears.
Oh my goodness. That is absolutely beautiful. Your documentation has always been amazing and it’s crazy to see that it is getting even better. I’ve never seen anything like this. Thank you so much for sharing and being such an amazing inspiration to all teams.
They’ve got 4. See the image on page 10. The motor in the gearbox render is hidden to show the other components.
I’m curious about this as well. Not just turrets, but any gear tooth profile like you used for the hood. I know y’all have a laser but would a waterjet be able to do 20DP gears?
Can I get some more information about the 2" OD surgical tubing that was used on the intake? After searching for 2" OD black rubber tubing on McMaster, the only result given was nitrile tubing with a 60A durometer hardness. Is this the same stuff?
Bringing the OD down to 1.5" (still black opaque) returns latex tubing with a hardness of 40A, more in-line with what Banebots uses on their wheels.
Is there another supplier where 2" latex tubing is available?
Yes. We did it this year for our hood’s sector gears and our waterjetting sponsor didn’t have to do anything special for them. (Picture)
I think this is an error and we are in fact using 1.5" OD latex tubing as you are finding on McMaster.
Depends on the water jet nozzle diameter. Our sponsor can’t do anything a .035" diameter stream can’t fit into. That diameter stream will just get into the root of a 20 dp gear tooth. It would not work for our hood gears, had we attempted to water jet them.
There was really no special design consideration. This was done on a very new water jet with a tilting head to compensate for stream lag and eliminate taper, which basically cuts perfect parts.
Is their anyway we could get a CAD download link of the robot?
How was your experience with mechanum wheels for an intake? Are you likely to use them again in the future?