Printrbot Top Z Axis Stabilizer

by gyronictonic, published

Printrbot Top Z Axis Stabilizer by gyronictonic Feb 2, 2013
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Printrbot Stabilizer mounted at the top of the Z -axis. Not sure if it reduces Z wobble but may provide more frame rigidity. I have no issues with Z wobble but if you're playing around with acceleration, doesn't hurt to add this.

Provided both 8mm and 12mm mount for the Printrbot and Printrbot Plus.

Can be clamped on and off for easier installation and the horizontal rod can be installed without threading through the parts.


  1. Print two

Hardware needed:

2 M3 x 14mm
2 M3 nuts
1 M8 x 400mm (plus), non plus (??)
4 M8 washers
4 M8 nuts

2 #6-32 x 1/2" (#5-40 or #4-40 may be a better choice)
2 #6-32 nuts
1 5/16" x 16" (plus), non plus (??)
4 1/4" washers (inner diameter is about 5/16", they will fit)
4 5/16" nuts

.IGES file included

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Only problem with this is that it reduces your available Z-height as the E-motor runs into the stabiliser. Less of an issue on the PB+, but a showstopper for me on an original PB. Good idea though so I make try to make a derivative that's less obstructionist to the Z travel.

I didn't realize how small the PB Original was until I saw a picture of it again. Increasing the distance between the brace and vertical mounts could solve this.