Stand for Atlas Lathe Change Gears

This is a stand for Atlas Lathe change gears (https://www.thingiverse.com/thing:143893) EDIT: 1/14/19 -- added STL files for nuts. NOTE: the gear_stand.scad file is to be used with OpenSCAD. In that file, at the top, are a series of variable switches. E.g. something like show_nut = 1. This variable can be set to 0 to hide or 1 to show the related part. Then press F5 for a quick render, or F6 for a final render to save to STL. Also, different printers have different levels of accuracy. This can make the mating of the threaded rod to the nut either too tight or too loose. There is a variable, thread_tolerance = 0.45;, which works for my printer. Others may need to alter this value experimentally to get a better fit.