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-   Technical Discussion (http://www.chiefdelphi.com/forums/forumdisplay.php?f=22)
-   -   Team 254 Presents: Dropshot Technical Binder 2016 (http://www.chiefdelphi.com/forums/showthread.php?t=148730)

Cherry254 31-05-2016 15:02
Team 254 Presents: Dropshot Technical Binder 2016
 
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!

Gravity 31-05-2016 15:09
Re: Team 254 Presents: Dropshot Technical Binder 2016
 
Quote:
Originally Posted by Cherry254 (Post 1590415)
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. :)

414cnewq 31-05-2016 15:17
Re: Team 254 Presents: Dropshot Technical Binder 2016
 
This is an amazing look into the development of an effective robot.

frcguy 31-05-2016 15:25
Team 254 Presents: Dropshot Technical Binder 2016
 
Incredible documentation of an incredible robot, as always :).

orangelight 31-05-2016 17:55
Re: Team 254 Presents: Dropshot Technical Binder 2016
 
Do you have any pictures of the camera and camera mount with the green light off?

kyle_hamblett 31-05-2016 18:01
Re: Team 254 Presents: Dropshot Technical Binder 2016
 
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?

scott.smith 31-05-2016 20:23
Re: Team 254 Presents: Dropshot Technical Binder 2016
 
I was going to do my homework, and then I saw this, well... 254 won over. Best reading I have done in ages. ::rtm::

snekiam 31-05-2016 20:33
Re: Team 254 Presents: Dropshot Technical Binder 2016
 
Are those dead LEDs in your ring on the last page?

Michael Hill 31-05-2016 21:34
Re: Team 254 Presents: Dropshot Technical Binder 2016
 
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?

caume 31-05-2016 22:02
Re: Team 254 Presents: Dropshot Technical Binder 2016
 
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

AdamHeard 31-05-2016 22:07
Re: Team 254 Presents: Dropshot Technical Binder 2016
 
Quote:
Originally Posted by Michael Hill (Post 1590518)
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?
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.

trumpthero786 31-05-2016 22:08
Re: Team 254 Presents: Dropshot Technical Binder 2016
 
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.

z_beeblebrox 31-05-2016 22:08
Re: Team 254 Presents: Dropshot Technical Binder 2016
 
Quote:
Originally Posted by caume (Post 1590520)
Also, why do you only use two CIMs in your drive? You need moar pushes
They've got 4. See the image on page 10. The motor in the gearbox render is hidden to show the other components.

bigbeezy 31-05-2016 22:10
Re: Team 254 Presents: Dropshot Technical Binder 2016
 
Quote:
Originally Posted by Michael Hill (Post 1590518)
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?
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?

Dan Petrovic 31-05-2016 22:16
Re: Team 254 Presents: Dropshot Technical Binder 2016
 
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?


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