Printable Z Axis Lead Screw Nut and Holder

by doommeister, published

Printable Z Axis Lead Screw Nut and Holder by doommeister Jan 19, 2013
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Here is a design for a printable lead screw nut for use the Trapizoidal threads, the examples given are in TR10 x2. The STL's are generated from an Alibre Design Model, but I have re-made it in OpenSCAD using Syvwlch's thread library. I have also included a holder for nuts which you can use in your own designs.

I initialy machined the nuts from Delrin but printed them just for the heck of it and on inspection I think they will be quite functional. You want the nuts to be the wear piece and not the threaded rod which is what seams to happen on my machines where I use a metal lead-screw nut.


Print with a layer height of 0.1mm and as much infill as a possible, ream and press fit into the holder.

If you need a to ream the threads try this - http://www.thingiverse.com/thing:42743

The OpenSCAD will require some tweaking to suit your rod/printer.

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I have downloaded the files. When making my nut in SCAD, I get an error:WARNING: Failed to compile library 'C:/Users\Chuck\Desktop\CNC Router project\lead screw nut and holders\Printable_Z_Axis_Lead_Screw_Nut_and_Holder\Printable_Z_Axis_Lead_Screw_Nut_and_Holder\Thread_Library.scad'.

I ran this for 10 hours or so as it was on a printer I the chose to dismantle. I am using machined aceatyl leadnut on my prduction machine.
I used PLA and silicone oil for lubrication and it seemed ok, howver that is no gauentee of long term life. If you could print them from nylon I think they mght work ok, if you could put your hands on some IGUS bearing filitment I thinl they would work really well.

Oct 31, 2015 - Modified Oct 31, 2015
KenNg - in reply to doommeister

thanks for the info, I printed the nut in pla, 0.1mm layer height, seems good, seem to get a cleaner print around the thread with higher speed than slow though

how is the plastic nut holding up and what did you print them with? pla or abs? I just need to use them temporary till my new design is done.