Tap & Drill Alignment Tool for 20x20mm Extrusion

thingiverse

A Simple yet Essential Tool: Aligning 20x20 Extrusion for Easy Assembly Assembling a 3D printed printer frame made from 20x20mm extrusion requires precision and patience. To make this process smoother, I created a handy tool to aid in aligning the extrusion for tapping and drilling. How It Works Place the tool onto the 20x20 extrusion, then use the top hole to position your tap bit (for tapping the ends) or one of the three M5 holes on the side for precise alignment when drilling. Please note that plastic may melt with friction, so only use this tool to mark the position of M5 holes. Important Note All current 20x20 extrusion has a 4.2mm diameter hole along its length. If your hole is not 4.2mm, drill out the ends you are working on using a 4.2mm drill bit before tapping with an M5 tap. Current Versions of the Tool Tool_TapDrillExtrusion_C.stl - Print Time: 1 hour and 29 minutes (with slight play) Tool_TapDrillExtrusion_D.stl - Print Time: over 1 hour and 29 minutes (tighter fit and 5mm longer) I tested version C and found it to have a slight bit of play, so I created version D, which is tighter and slightly longer for better precision. With this tool, you can ensure accurate assembly of your printer frame.