[pfreivald]

Originally Posted by JesseK

80/20 (and maybe Bosch too) sliders really start to bind on multi-stage compound elevators. You also have to keep the 80/20 perfectly square to minimize binding, and at height there's a higher tendency for torsion. We scrapped 80/20 in favor of powder coating + teflon for slide friction that was close to what a bearing slide would have; the box aluminum also resisted torsion alot better.

We have not had even a single issue with Bosch slider carriages binding on multi-stage compound lifters -- and from trackballs to minibots to entire robots, we've really put them through their paces! I can't speak for 8020.