HicTop 3DP-11 Z-axis upgrade

thingiverse

I decided to start from scratch. This Right end to the X axis was created from scratch. The idler pulley is designed to accommodate the smaller pulley bearings used by HicTop. In addition, I wanted to experiment with a plastic lead screw nut to see 1) how does it hold up and 2) can it eliminate float on the z axis. I have been using it for a few days and so far, it is working well. I am getting the best quality prints on this printer. Enjoy. The linear bearings sleeve is closed and is press fit. BTW, I did get ideas for parts of this from several other designs. I have, however, never seen a printed lead screw nut. Print Settings Printer Brand: Prusa Printer: Prusa Clone Rafts: No Supports: No Resolution: .1 Infill: 100 Notes: I had a couple broken idler arms. I adjusted the wall thickness to half the width and reprinted it. This gave the part significantly more strength. The backplate was also not strong enough, so I did the same technique to it and it is holding up well now. Overall, I am very happy with this part, using it for over a year now. 8/18/2017 Post-Printing For the plastic nut, run the screw through it several times till it works smooth then put some graphite inside for lubrication. I find that graphite works pretty well with plastic screws and nuts. I used a 4mm screw and nut for the tensioner and 3mm screws and nuts for the x-rod standoffs.