Printrbot LC Single Universal Extruder Mount

by gyronictonic, published

Printrbot LC Single Universal Extruder Mount by gyronictonic Oct 10, 2012
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Designed an extruder mount for the new Universal Extruder from this kickstarter project


There are some issues with this mount. One is that the fan is very close to the wall which may affect the cooling of the heatsink. If I were to extend even further, I may strain the Z axis rod due to torque.

I am not sure if this will work with the double extruder version since the mount is different.

Designed in Solidworks 2009

Uploaded ver2. This version requires the QU-BD MBE extruder to be oriented parallel to the mounting plate versus the original perpendicular mount. You can view my blog as a reference to see how it's mounted. You will need to cut slots into the mounting plate since none of the mounting holes are 50mm apart like the Wade Extruder.

Finally got my QU-BD installed on the PB+, posted some pictures. Going to make a blog post on how to install the QU-BD parallel to the universal mount.

Extruder lever mod by mickb


  1. Print and clean part if necessary.
  2. Remove the 4 screws that's on the X carriage
  3. Mount and install QU-BD extruder.

Pictorial guide in my build log

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it's only for printrbot LC or i can use in my printrbot with ABS pieces?

Only LC. Basically I turned a laser cut piece into a plastic piece but modified.

it's for any printrbot or only for printrbot LC

Why not just rotate it left or right so the whole extruder is parallel lengthwise to the x axis, rather than hanging out so far?

you should be able to loosen the nut that holds the bracket tight and rotate 90 degrees and then retighten with out an issue. 

That would be the ideal position for this setup but the extruder is assembled in this specific way. If I were to rotate it to make it parallel, I would only have one bolt to lock this assembly down instead of two.

you can see it here