Author Topic: FIRST Robotics Competition Discussion (Read 9000 times)

pimathbrainiac · « **Reply #15 on:** February 19, 2014, 07:32:39 am »

Quote from: fb39ca4 on February 19, 2014, 12:48:14 am

[...] Surprisingly, everything was working for the most part today and we were ready ahead of schedule.

Same here. (For the first time since 2007, actually).

fb39ca4 · « **Reply #16 on:** February 19, 2014, 12:51:14 pm »

Quote from: epic7 on February 17, 2014, 04:12:25 pm

Hmm, that's quite a short lever arm on that shooter. How is it powered?

It isn't shown in the CAD model, but cables run around those pulleys on the side of the shooter arms, and then attach to four springs which then attach in the back of the chassis. To pull the arm back, we have shamelessly copied this mechanism. From testing yesterday, we found out it is sufficient to throw a ball in the high goal from 20 feet away, which is actually too far, so we will have to do some tweaking.

fb39ca4 · « **Reply #17 on:** February 23, 2014, 01:12:42 am »

My team hates pneumatics, so I designed a servo actuator for the VexPro Ball Shifters, and from testing today, we found out that it works!

pimathbrainiac · « **Reply #18 on:** February 23, 2014, 10:05:53 am »

That's cool!

My team still uses pneumagics, though

Author Topic: FIRST Robotics Competition Discussion (Read 9000 times)

pimathbrainiac

Re: FIRST Robotics Competition Discussion

fb39ca4

Re: FIRST Robotics Competition Discussion

fb39ca4

Re: FIRST Robotics Competition Discussion

pimathbrainiac

Re: FIRST Robotics Competition Discussion