Full Court Shooter Testing Wave Robotics FRC2826

[MrRiedemanJACC]

Thanks! Be careful of the 775 motors. We had shorting problems last year, as did many other teams. We are using dual 550's this year into a cimulator. Just to avoid the 775's.

Btw, great job!

[EricLeifermann]

Originally Posted by MrRiedemanJACC

Thanks! Be careful of the 775 motors. We had shorting problems last year, as did many other teams. We are using dual 550's this year into a cimulator. Just to avoid the 775's.

Btw, great job!

We've used the 775's several times and have had no issues. The trick is to test them before you put them on your robot.

[barn34]

very impressive, guys! looking forward to seeing the whole thing in action in Milwaukee.

hmmm....full court, accurate shooter paired with a versatile 30 point climber... something tells me that would potentially make for a strong backbone of a very formidable alliance

[TheCrayButton]

WOW! That is way better than ours. Nice job guys.

[cadandcookies]

Can I bet a curved/straight shooter? like, it comes around an elbow and into a linear-like shooter? I wouldn't put it past you guys.

[silverD]

Looking great! Can't wait to see it in action in Duluth.

[Justin Shelley]

Very nice shooter!!! I believe in matches without a defensive robot on the opponents team to block feeder station shooters that these robots will be extremely difficult to beat!! great job guys!!

[Lil' Lavery]

Originally Posted by EricLeifermann

We've used the 775's several times and have had no issues. The trick is to test them before you put them on your robot.

That's far from foolproof. We had two 775 motors develop a case short after being installed on our robot in 2011. Both were tested prior to being installed.

[Mr. Lim]

Originally Posted by Lil' Lavery

That's far from foolproof. We had two 775 motors develop a case short after being installed on our robot in 2011. Both were tested prior to being installed.

Same. In 2011 we tested all our 775s and at the time of installation they were good. Over the competition season, we developed case shorts, resulting in us lying dead during a large number of matches at GTR-W. Robot would start autonomous, and when the arm hit a certain angle, we'd cut out for about a minute.

2056 helped us troubleshoot the case short, and loaned us a "775 blaster cable" that allowed us to temporarily clear the short. It got us through the competition.

I wouldn't touch a 775 again unless the case is electrically isolated. Mounting to lexan, and plastic 1st stage gearing is a good start.

[Lil' Lavery]

With the 6 CIM limit and 2 Mini/Bag-CIMs in addition to the AM 9015's, I really don't see a reason to ever use 775s again, period.

[EricLeifermann]

Originally Posted by Lil' Lavery

With the 6 CIM limit and 2 Mini/Bag-CIMs in addition to the AM 9015's, I really don't see a reason to ever use 775s again, period.

We've had good results with them in the past, maybe we're just getting lucky and getting "good" ones. We appreciate everyone's advice on the motors, however. You can never get too much info like that.

I think this might just be a case of we'll use them until they bite us in the butt, as we have yet to have problems with them the last 2 years.

Good luck to everyone this year, I look forward to seeing everybody's robots in the coming weeks.

[trilogy2826]

Thanks for the advice all. We have already put in place electrical isolation with nylon standoffs and plastic transition gears. It's great having a SLS rapid proto printer sponsor!

[bradleyarg]

so for those who are asking: either a strait or curved would work its really about the pressure on the Frisbee, how much they are compressed, and the psi in ur wheels (or 0 if you are using hard wheels)

4067: The Incredible Hawk Clarksville, MD
Ours shoots far over 100ft at only a 10 degree angle (at 30 we hit the ceiling of the cafeteria)

here's the video we have so far (we are getting a better one up soon):

4067: The Incredible Hawk Clarksville, MD
https://www.youtube.com/watch?v=1WMCng7vTBg