Part Fitting Cube - Tolerance Test

thingiverse

This is a re-upload of a super useful Tolerance Test / Part Fitting cube/peg that I had downloaded before and now I can't find on the site. This test is incredibly easy to use for adjusting flow rate and tolerances. Print both the Peg and the sleeve at the same time. I usually print with a 0.2mm tolerance sleeve when fine-tuning for a new filament, and I can dial in my flow rate in under 20-30 minutes most of the time. These prints come out very fast. What you're looking for is a sleeve that fits easily over the peg but not too loosely. If the sleeve can slide onto the peg or fall off easily, it's way too loose, and your flow rate will increase. If the sleeve fits over the peg but needs to be forced a bit too much to go on, then your flow rate is too high and you need to drop it down a bit. If the sleeve fits snugly over the peg but moves freely with just a little force, then your tolerance is spot on. The sleeve should slide up and down along the peg without rotating side to side if your tolerance is correct. If it's too loose or flow rate is too low, then it will rotate. If it's too tight or flow rate is too high, then it'll be hard or impossible to fit over the peg. When your tolerance is dialed in correctly, you should double-check the print against the actual dimensions of the parts themselves and make sure they're correct as well, which they should be if your extrusion/tolerance is spot on. Plug dimensions are 10mm x 10mm. Sleeve dimensions have either a 0.2, 0.3, or 0.4mm tolerance beyond that. So 10.4mm, 10.6mm, and 10.8mm. I think the person who uploaded this initially was "Sterminare", but all credit goes to the creator. I'm just passing it along. This is a very helpful print, and I hope it can help others too.