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Sometimes gravity & alignment aren't enough to keep the bridge from hanging-up on descent, these keep the Z-rod nuts in their wooden slots to make sure the bridge descends everytime, no surprises.
I made these to clip on the back of the bridge so they wouldn't detract from the beauty of the Printrbot. After printing, remove support scaffolding under top clips. Place into upper wooden slots first & press down, then slide their feet (keepers) onto the Z-rods and press flat.
The left side mounts inside the left tower, the right mounts on the back (remove long screw & nut to gain clearance, replace when done) see photos. You -do not- have to remove the pulley & belt.
Both pieces have a slight overhang, so don't forget to enable "support" or "scaffolding" when slicing & remove them after printing. Use a fill density of at least 50%.
Printrbot LC+ Z-nut Keeper by PacificBlue is licensed under the Creative Commons - Attribution - Share Alike license.
So what's this mean?
We're sure PacificBlue would love to see what you've printed - take a photo and share it on Thingiverse as a Make.
To post a Make simply visit this Thing again and click I Made One to start uploading your photo. You can also download the Thingiverse Mobile app (available via Google Play and Apple App Store) to take a photo and upload your Make right from the app!