Re: TapeMeasure Climber Dropping after Match End
 

Usually tools are not left in the robot on purpose :D

Re: TapeMeasure Climber Dropping after Match End
 

And when they are, you either find a random wrench on the field.... or very baaaad things happen. :p

Re: TapeMeasure Climber Dropping after Match End
 

Yes!

We look forward to seeing your robot scale at Lone Star. Safe travels.

Re: TapeMeasure Climber Dropping after Match End
 

And who knows, we might just do a repeat of last year and alliance up again :P See you there.

Re: TapeMeasure Climber Dropping after Match End
 

And we get past Semi's this time? :)

Re: TapeMeasure Climber Dropping after Match End
 

We're braking our tape-measure lift with a piece of rubber tubing attached to a Firgelli linear servo. We're using a WCP DS gearbox, so we have easy access to the gearing. The servo just pokes the rubber tubing into the mesh of one of the gears. The only annoying thing is we currently can't leave it engaged during the lift because during retraction it gets sucked into a different mesh and pulled off.

Still, if you can identify a mesh inside that toughbox nano that you could jam with a piece of tubing, you might be able to cut an access hole in the side and do something similar.

I've got a second linear servo coming in today or tomorrow because someone (Joshua Bryant) slightly broke our original, and it's been acting mildly flakey. I could give you the mildly flakey one, but it'd be mildly flakey.

Re: TapeMeasure Climber Dropping after Match End
 

We had these solid steel ring hanging around that we cut off our gearboxes every year. We machined ratcheting slots into this and attached it directly onto the shaft In which the winch pullies are on. Then we attached a servo to a piece of metal so that when the winch is pulling down the ratchet rides over the servo but when it goes up just a second the ratchet locks in. The spring is simply to prevent the robot from falling if power is cut to the servo for any reason specifically the end of the match and we didn't fully climb the spring overrides the servo and locks the ratchet

Re: TapeMeasure Climber Dropping after Match End
 

If you would like some help with a pneumatic disc brake, our team used one to stop our lift from backdriving last year, and therefore I have a fairly good understanding of how it works.

Re: TapeMeasure Climber Dropping after Match End
 

A simple way to eliminate back drive would be to toss a worm gear (looks like twisty pasta) in the gearbox.