Magnetic Pin or Tac

thingiverse

This is the body for a magnetic pin or tack suitable for holding notes on metal things like kitchen fridges or file cabinets. Kind of silly little thing as you can get assembled ones for around 50 cents, but I was in a situation where I needed a few and already had the 6mm x 1.5mm rare earth magnets, so what the heck, it was done on Fusion 360. For a stronger hold where the magnet will be in direct contact with metal, I use 6mm x 3mm magnets also very cheap with free shipment on eBay. The price in bulk for 6mm x 1.5mm (about 1/4" x 1/8") rare earth magnets is trending now on eBay for 50 magnets with free shipping for about $8, so these are actually cheaper if you have spare time to make and print them. Suggest you duplicate the part as you do the slicer perhaps 4-8 times and make one print for many parts in the usual way of letting it run for a few hours. There is an assembly step to put the magnet into the hole in the bottom with some silicon type glue or even epoxy and push it in so it is below the plastic, so the pin sits flat. To make these look good, a very nice resolution printer with 0.4mm nozzle and print the outer layer slow such as 15mm/sec. If your printer does not form a hole that is quite large enough, hand hold a 1/4" drill and ream it out a little for better magnet fit. For really small 'gratuities' since Thingiverse does a huge $3 or more for PayPal (too much IMHO), you may use the Bitcoin address 1yKJcrkLE7RmsLmZPL3ku5PpazGzNmDSS or Ethereum address 0xbCCEf017Ff00215496A768fb0238893Edf7584B0, but no worries or expectations, key thing is you find this useful! Most important thing is you have fun and enjoy this if it is useful to you!