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This is a fix for the two z axis threaded rods on an ordbot binding up. Unless they are perfectly aligned, as the axis travels up and down it can bind up causing skipped steps and ruined prints.
Unscrew the metal block from the frame, and screw this block instead. The threaded rod threads onto the metal block, which sits below the printed part, with its too-big hole. This allows the threaded rod to wobble around without binding up. I believe it will introduce a small amount of backlash into the z-axis, but that's better than binding up and skipping steps.
OrdBot Z Block by davr is licensed under the Attribution - Non-Commercial - Share Alike license.
So what's this mean?
We're sure davr 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!