Since early July (after TSA Nationals), our team has been working hard to build any variation of a working lift for this years game. We’ve built 7 (no kidding) different scissor-lift prototypes, a 4-Bar prototype, and an elevator lift prototype. At this point in time, just one of them has worked, and it is ridiculously slow.
The working lift is a rack-and-pinion based scissor lift, where a rack-and-pinion works to push the scissor-lift up. The rack-and-pinion is mounted vertically on the side of the scissor-lift, and while it “works” it is incredibly slow and unstable.
Regardless, we are at wits-end with these robots. It seems everything we do we cannot do correctly. We eventually (desperately) tried to replicate a robot we saw in a video and even that one would not work, so we must be doing something horrendously wrong with our scissor-lifts. Members are even quitting because they are so discouraged by the failure we’re experiencing this year. It does not help that we did so well last year, either, haha.
So, I am reaching out to you all on the forums looking for any tips on general scissor lift construction, or preferably a link to a “guidebook” for that. I know this is a very general question and you all may not be able to answer, but you’re a great community and have pulled through for us before I’ve linked some pictures of our current build in Imgur down below. Thanks everyone!
Our only working prototype: http://imgur.com/a/bd3lY
An earlier prototype (gear ratio too low to work): http://imgur.com/a/X91V8