Zen Pin 2
thingiverse
A tighter fitting zen pin with no plier holes, for when you want a more permanent magnetic model. Instructions You can cut/paste the hard-coded 'zenHole' module into your own projects, making it super easy to put holes in your own stuff. (but if you want to modify them I'd use zen pin v1) Print batches of pins up separately with the .stl. Thanks to Dogbert for determining a tight, but not too tight, tolerance.
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