Back and forth thread

thingiverse

A ring on a pin that goes back and forward when turned in one direction .. . Video : https://youtu.be/lhfX5ZXipeo If you are going to print this, you will have to make 4 parts, the middle, 2x the ring and the slider. then glue the two rings together with the slider in it. . . BE AWARE,, i did a lot of work afterwards, making the thread deeper, sanding down the slider a bit etc. . . but i ended up with a nice toy .. The openscad source is also there, you could make the thread on the rod a bit deeper, that might make it easier to get it working. . . at the top of the OpenScad file there is a section that selects what to render, so you can export the STL's of all parts separately //draw="All";