3030 printer 1 inch roller ball bearing casters
thingiverse
Made a way to slide your Ratrig or any printer made with 3030 extrusions around **Side Note**** Please don't leave these on your machine, it will run away from you, put them on to move the machine then remove them*** It uses the 1 inch Roller Ball Bearings that you can buy from harborfreight https://www.harborfreight.com/1-inch-roller-ball-bearing-67060.html I used m5 countersunk screws to mount them. https://youtu.be/qgi_kNGUjb4
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