25mm conduit clearance test thingy

thingiverse

I'm using a 25mm conduit test fixture... The first hole measures 25.28mm and each subsequent one increases by 0.4mm. After printing, I use sandpaper to even out the layers and prepare it for testing. Once complete, I note down my print settings to serve as a reference point for future designs. Typically, I allow for a 0.2mm clearance on all sides, but there are instances where this isn't sufficient. After just a few seconds of sanding, the second hole is perfectly sized.