Center finder with bearing
thingiverse
Woodworking tool which helps to find center or wooden beam. Two bearing guarantee smooth movement and allow to easy operate with one hand. Can be used with beam width up to 116mm. It require to use two 608 bearing: 8x22x7 mm and pair of: bolt 16x5 mm plus nut m5. Does not matter what layer height and infill you use. I used 0.28mm and 40% infill. Some printer might require to use support to proper print nut holes. For my Ender 3 Pro it was not necessary.
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