ToFnLED Housing for Gaggiuino included imbedded magnets, made with 2 parts fastened by M3 screw.
I printed in ABS.
you will need:
*4 magnets D5mm x 2mm
*1 countersunk screw m3 x 5/6mm
The author remixed this model.
made in 2 parts held by a screw, magnets are imbedded.