Whats everyone’s idea on how to get your robot to hang on the bar. Im thinking to use an elevator lift to hook onto the inside of the hollow hanging bar and using that to lift the robot. My main concern is that the elevator lift might break with the weight of the robot. Any ideas?
I am pretty sure that is one of the two ideas, (the other requires grabbing it with a claw)
Either way, The mechanism to actually lift the robot off the ground is gonna be real sketchy on most robots. We are gonna see some interesting things happening in competitions (Falling robots, bent aluminum, etc.). Im trying to find a way to reinforce that lifting mechanism so the motors don’t stall or other fishy things like that.
I have seen this design in Toss Up and depending on your design, you should be fine.
Another thing is 2 torque motors geared 1:3 on a rack and pinion hold around 20lbs., and I bars dont bend until 60 lbs of force are put on them
If you’re worried about having the lift droop when the motors stop running, a worm gear is an option. You might not need one, and they are really, really slow (they act as a single-tooth gear in a gear reduction), but they cannot be back driven.
Yes, that is very true and works really well, especially in a scissor lift so it doesnt need rubber bands
The worm gear would not work then if you do an autonomous hang and try to come down.
1 and done.
When I say that a worm gear cannot be back driven, I mean that the weight of a robot or scoring objects or whatever cannot make the lift move. The lift can go up and back down, but the motors need to do that.