PrintrBot Jr. - Print Bed Adjustment Knobs and Pegs

by phraust, published

PrintrBot Jr. - Print Bed Adjustment Knobs and Pegs by phraust Feb 12, 2013
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My PrintrBot Jr. print head was bumping into the screws on the top of the print bed, so I put these parts together to fit in the holes and not interfere with it's operation.

I also wanted an easy to adjust way of leveling the print bed, without having to fumble with those damn little nuts.


  1. Print it out, I used PLA.

  2. I just popped the little nuts into the middle of the adjustment knobs, and used a drop of super glue to keep em in place. (Big ones go in front, small ones go in back).

  3. I flipped the screws that came with the PrintrBot Jr., cut off the heads so they were more like a little threaded rod, and super glued em into the bottom of the pegs. Then I wrapped the top of the peg in a wee little piece of blue painters tape, and stuck it em in the holes of the print platform.

  4. I found that by stretching the stock springs out, I could get the clearances I needed under the print-bed, to avoid rubbing against the top of the screws that hold it all together.

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Great idea with the countersinking! I'm thinking about upgrading from the laser cut wood bed to something metal or glass, just need more material! :D

These work nicely. Thanks. To solve the problem you are talking about, i used a flat headed screw on the print platform, and countersunk it in. No more bump.

I ended up putting little wingnuts under my jr, but I like this idea. Im gonna give it a go.