About this 3D model
For an exhibition I needed a safe dart game using a drawing on a white board or flip chart as target.The idea was to put a magnet on one of the dart designs found in the internet.This did not work to well because the darts did not fly well and bounced of the white board.I copied another idea from the internet using a paper tail, and put a "spring" around the magnet to brake it before the magnet reaches the board. This prevents bouncing. I printed it in PLA with supports, without rafts and/or brims. I used a neodymium 10 X 5 mm disc magnet. I Glued it with some type of mounting glue.You have to experiment with several glues to find the right one. Update: Using this design in reality showed that the spring is very brittle and will break after a few throws. See my other magnetic dart design where I use a foam ring as damping material.