This is a simple tool to catch a lost screw or nut in a tight space.

I made a version with two 6x3mm magnets or three 8x2mm magnets.

There are files for printing in normal mode or in vase mode. The vase mode is designed with 1mm wall thickness for better rigidity. Print slowly and with a brim for better accuracy.

The tool is 21cm tall to fit on a standard MK3 or Ender3 but I can make other versions if needed.