Printable Z Axis Lead Screw Nut and Holder
by doommeister, published
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.
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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.