Hi Jose
There are two linear bearings under the shoe, and two bearings holding the threaded rod. If you want we can speak spanish (much better than English :P ).
Regards
José Torre
over 9 years
Hi! Printing this as I'm posting this comment.
You mention two bearings I assume are for the threaded rod ends, but what is sitting between the rods and the slider shoe itself? I can see something black in the pictures but can't tell what it is? Linear bearings? Can you tell me which bearings you used? Or is it something else? Thanks! =)
Egrojyos
over 9 years
First engined version with two endstops:
https://www.youmagine.com/designs/camera-slider-engined-version