If I had a working printer handy I would have used Prusa Z-Coupling modification by Nophead but instead opted for the low cost lead-screw variant by Keegi since the hardware store was more accessible at this point.
Vinyl tubing and a coupling nut |
I used a lock washer and hex nut to keep the coupling in place so it didn't unscrew itself from the threaded rod.
The lock washer between the two nuts keeps enough tension/friction so the coupling wont unscrew itself |