Smooth Ball Bearing Hinge with Airsoft Bearings

thingiverse

Swing open a new door of possibility with the new Easily Build ball bearing hinge. Using airsoft bb's and ball bearings, this will bring smooth mechanical action to any door. Materials: 15 Airsoft BB's WD-40 Instructions: Line up the holes in the hinges. Insert 5 BB's into the top, middle, and bottom hinge cavity (turning the hinge to make room). A little WD-40 helps work in the hinge. Print Settings Rafts: No Supports: No Infill: 30 Notes: Printed on a heated glass bed with ABS glue. Support material is optional: when my printer is tuned, support material isn't required; when it's loose, it does require support material. You know your printer best. Overview and Background Mechanical Tolerances When no tolerances were compensated for the parts, the assembly didn't fit together. But with a little wiggle room - 6.3mm diameter instead of a tight 6mm - the hinge rolls smoothly on by. Lesson Plan and Activity Mechanical Tolerances and 3D Printing Optimization This assembly shows how ball bearings can lock an assembly of parts securely in place. Materials Needed 15 Airsoft BB's WD-40 Skills Learned Mechanical Tolerances Printing Optimization