M3 Tap Practice Block

"Open Project" from PrusaSlicer directly from the file menu, don't drag into PrusaSlicer otherwise the tap block won't show the negative volume shapes (holes). M3 Tap Practice Block, made in PrusaSlicer shapes gallery (square) and negative volume shapes (cylinder) created in PrusaSlicer since I didn't want to go an open up Fusion360 for such a simple model. The holes are standard 2.5mm hole, for a tapping a m3 hole but this can be adjusted in the model on each hole (you'll need to manually adjust each negative cylinder based on your tolerances). I used 5 vertical perimeters and standard 0.2mm layer height on a 0.4mm nozzle. In the pictures, the top 3 holes have been tapped.