Printrbot+ captive nut keeper
thingiverse
For the Printrbot+, if the captive nut for Z-axis continuously slips from its dedicated enclosure, use this add-on. Simply print two ABS parts with support in Slic3r, then attach them to the left and right sides of your X-Carriage.
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With this file you will be able to print Printrbot+ captive nut keeper with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Printrbot+ captive nut keeper.