3x2 & 4x2 Magnet Fit Test

thingiverse

I've found that I want a tight fit for magnet holes so that the magnets don't get attracted to elements of the extruder. These testers, intended for well-calibrated printers, offer holes from 3.03 to 3.18mm for 3x2mm magnets, and 4.03-4.18mm for 4x2mm magnets, in 0.03mm increments. Different materials may have different characteristics and these use under a gram of filament, so print a tester for each type of material from each vendor! - Each tester has a thicker wall around the largest hole to help identify it. - If a magnet gets stuck, poke a toothpick up through the hole at the bottom to dislodge the magnet. - Why is list text so big? **Note:** Photo shows older designs. Current .stl downloads have the large hole identifier rings, and better spacing.