3dr spring socket arms

3dr spring socket arms

thingiverse

this is a modification to use Andycart's cherry pi spring socket joint idea in the 3dr. Instructions print the parts in 0.2mm layer height. use a 9mm steel ball with a hole of 4 mm to make the rods. The springs i used are 40 mm long 7 mm diameter springs stretched to 80 mm ..

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