Obviously you don’t want a load bearing castor on a shelf, thats a disaster waiting to happen, so the outer one at least  is moved to the center of the frame… These models work so much nice when there isn’t a chain clogging my my CPU 🙂

Two linear bearings on the outside affords about 400mm of travel, which is pretty nice. If you’re wondering how this will be powered without some massive motors… well, stay tuned and find out soon…. 🙂

New Base1680