During our competition, the robot swung off of the traversal bar twice, it is ok but obviously that’s not a great thing to happen
6 Likes
Totally depends on the climber type. We reverse the rotor prior to releasing the trailing hook.
1 Like
First off, I would take a look at the shape of your hooks. Two more things are how quickly you retract your climber arms and where your center of mass is in relation to the pivot point of your arms. (I suppose I’m assuming you’ve got two rotating arms and two stationary)
A way to reduce swing is to put some wheel tread on the inside of your hooks.
I would also avoid climbing in the middle of the bar because that is the position that bounces the most.
2 Likes
We added some grippy material on our hooks. Still swung a bunch, so then we used our intake to smack into the mid bar when raising up. That helped more than anything.
1 Like
Swing actually helps us funnily enough, but seconding @Ryan_Dognaux that wrapping your hooks in electrical tape or something similar can help a ton
The way our climber was designed to climb, we don’t swing at all (this was an intentional design feature).
- We designed the COM to be vertically in line with the climber pivot
- We added tread to our climber hooks to increase friction:
9 Likes
We started with that and it helped a bit. Then we redesigned our hook and added some low durometer polyurethane. This helped a lot more (ignore the backwards hook, that was a separate experiment). The kids had to take a small rubber mallet to the field to release the hook and it’s important to remember that any ‘grabbing’ of the rung means more energy is transferred to the mount/shaft. Coupled with some software changes that lowered the robot further before releasing from the high bar helped a lot too.
2 Likes
Does your robot have any trouble releasing the bar in order to transfer to higher bars? We use an AM Climber and I would worry that the constant force springs may not be enough force to unwedge the hook.
Our design made swing reduction a focus, so we don’t release the previous bar until we’ve shifted the robot over:
8 Likes
We haven’t experienced that. (we’ve had other unspecified problems; like apparently our robot can be knocked off when a fellow alliance member comes in at full-send) and hits the side of our hanging bot).
Anyway, example at 2:00. https://youtu.be/T9x-lgCmKdE?t=120 (4627, bottom left).
This topic was automatically closed 365 days after the last reply. New replies are no longer allowed.