Topic: Boss Nut / PEM Nut Removal (The Easy Way) (Level 1 - Novice Consumer)
Disclaimer:
I labeled this Level 1 because of the ease of the removal process. However, other mods based on this procedure will have higher ratings including removing the bed to do this mod. Please make sure that you print all parts (and extras) necessary to complete your upgrade before performing this step. This WILL keep you from printing until you have finished your mod. With that said, happy modding
To start with, print off the pem_nut_removal.stl attached to this post. Use a high infill as it will need to withstand ~90 PSI. I used 100% but I am sure 50-70% could work fine.
Other items you will need:
1/2" Wrench
5/16" Bolt around 1" long no shorter than 3/4"
5/16" flat washer
Aluminum Bed with 5/16" "PEM Nut" / Boss Nut
Step 1: Place PEM Nut Removal tool over PEM nut from the bottom side of the bed. This will be a snug fit. That's okay if it doesn't go all the way down. The next couple steps will do that for you.
Step 2: Insert a 5/16" bolt with flat washer through the PEM Nut Removal tool and thread the bolt into the PEM nut.
Step 3: Tighten the 5/16" Bolt until the removal tool is snug on the removal tool and the removal tool is flat to the aluminum around the pem nut.
Step 4: Continue tightening the 5/16" bolt until the Pem Nut is extracted. It should be fairly easy to remove with a 6 inch wrench. You will need to hold the bed during the process but no other tools should be required to hold the bed while you are removing the nut.
Step 5: Admire how cleanly the nut was removed from the bed without causing damage to the nut or bed.
Step 6: Grab another beer and move on to the next step of your Mod!
Glass bed with QU-BD heat pad upgrade, threadless ballscrew w/ 8mm smooth rod, spectra line belt replacement, lawsy MK5 extruder, Lawsy replacement carriage, E3D hotend, Ramps 1.4 w/ reprap discount controller, DRV8825 drivers, 12v 30A PS, Acrylic case, Overkill Y-idlers, Filament alarm, Extruder fan + more.