I have a scissor lift using rack gearbox brackets attached to inner acetal slide trucks. The slide trucks go inside a linear slide and go back and forth as the scissor lift moves, you know, like any other scissor lift.
I noticed while driving that the lift could go up with ease, but had a lot of trouble coming back down. The lift is 1:7 and evenly rubber banded. So, I took off the motors and rubber bands. Sure enough, I could pick up the lift fine, but found the slides to have a lot of friction going back down.
Has anyone used inner acetal slides in the past and do you know how I might go about reducing their friciton?