After original shaft got shredder (you know that the high pitch sound of a motor running free...), I saw no point in getting a new one to so it also gets shredded.
It took a few attempts, but this one has been holding nicely over several months.
As seen in the pictures, the square-nut dug itself diagonally into the PLA, but it doesn't go any further.
Instructions:
The Solidworks file is also included if it helps and you need adjustments.
NOTE: Use at your own risk, I would not be responsible for any results.
Phillips_replacement_shaft.STL | 1.6MB | |
Phillips_replacement_shaft_-_Solidworks.SLDPRT | 1.1MB |