My team is considering making a vertical stacking mechanism. Should we use treads, or mecanum wheels (if there is a way to do this)?
You could do something like this if you wanted to use mecanum wheels:
However, I think it would be lighter and more efficient to use treads.
Would vertically-spinning treads still be able to pick up cubes effectively?
depends on how well u build them
Yes but I wanted to know if there were any teams that already had vertically stacking mechanisms, and how efficient were they during competitions?
i saw a few none were metas for sure bot if u really want to build it then is should work fine
most robots that stack vertically either have a tube that they suck cubes into either with rollers or with passive clip things, or have a claw, but the most effective ones seem to be a combination of the two. A big claw that has passive clips at the bottom seems to be a very competitive non-tray. Although, these types of robots are harder to build and perfect than a tray, and are only competitive when partnered with a tray.