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This is a tool to help with leveling the print bed of a Prusa MK3 printer using the Nylock bed-leveling mod. The idea for this came from 'The Histed Dial' posted on thingiverse by jonnyhifi, which can be found here:
https://www.thingiverse.com/thing:3112209
Take a look there to get some good description and details.
The Histed Dial is a great tool, but I had a few issues with it, so I designed an alternative. Here are some details about the issues and changes:
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The dial sticks out off the edge of the head bed, which makes it tricky to use on some of the bed screws. You have to move the bed to the front of the printer to adjust some of the screws, then move it to the back to adjust the other screws. This is addressed by using a wedge shape instead of a disk, so it won't stick out off the edge of the bed. Also, the gauge piece is elevated a bit so it will not hit the two nub things at the back of the bed.
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The dial doesn't give you a specific reference point to indicate how far you've turned the dial, you have to use markings on the heat bed as a reference point. I've added an arm piece with an indicator to add a reference point, the gauge sits on top of this.
- The markings on the dial are very small and hard to read. I made the markings bigger and easier to read. I also added markings to make it clear which way to turn the screws to raise/lower the bed.
Here's a link to the Nylock bed leveling mod:
https://github.com/PrusaOwners/prusaowners/wiki/Bed_Leveling_without_Wave_Springs