The chain can swing, sag, and otherwise spin your robot if you don’t hit it right or another robot tries to join you. It seems deceptively harder than it should be and I haven’t seen many people mention it. I’m trying to research some ideas before prototyping with the box climber, but still— wanted to try a baseline but no Ri3Ds have done a climber yet. Just curious, especially with the harmony bonuses. Also the 5 second period afterwards when the robot cannot touch the ground will also be a slight challenge depending on mechanism. 2022 robots tended to drop after 3s sometimes and I’m curious how it will effect scoring, the slow drop down of doom
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The Australian RI3D team Unqualified Quokkas have prototyped a climber which can be found on their stream Twitch and their Instagram https://www.instagram.com/ri3d_unqualifiedquokkas/
They also have by the looks of it nearly a full field built and would probably answer your questions on their stream.
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How do you think climbing on the chain will go with the traditional climber that many teams use the climber in a box.
I think any hook will do fine on the chain. it might slide left or right depending on where you grab but I don’t think it will fall off
Climber in a box seems too tall (seen by the Purdue ri3d but just cut the tube length down), and just the way the buddy climb could work depending on sliding and where you grip, especially if the chain is swinging from another robot
If you’re not trying to score in the trap I think the climb will be quite easy. It gets a lot harder if you try to take that on since you need to lift yourself up higher and be in a more consistent position.
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It depends on how accommodating you want to be to alliance partners climbing on the same chain as you.
After length is cut down, I think the biggest difficulty with many of these COTS climbers is that the hook plates are one inch apart, and the links are essentially 1\frac3 4" long with \frac 3 4" between them. With a custom made hook that is rather narrower and a cleat that sticks down through a link, it could be a lot more secure.
The catch is, there isn’t really a need for the climber in a box if you forego scoring in the TRAP. Just have a hook that runs alongside your robot on a single stage elevator that can go higher than the chain’s end and low enough to lift you in the center, and you can climb the chain at essentially any point you choose.
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