On second thought I did not think that last comment all the way through. I was thinking back to my skyrise robot and how it struggled to move while the lift was in the middle due to flex. So based on that the as long as the same mistakes are not made the robot should to well. (Also that skyrise bot was my first robot I built so there were many other flaws that it had too.)
An inverted parallelogram linkage flips the final bar stage as it’s lifted instead of keeping it parallel.
I thought that this would be useful because it would hold the stars/cubes until it got over the fence and then dump them.
I will probably be doing an rd4b, because if built right it can lift a lot of weight really quick. Also so that I can almost definitely go over any defending robot that gets in my way, including wallbots. I also like the fact that it can lift vertically because I’ve been wowking on a lift system that would work perfectly with an rd4b.