Machinist Jack aka Screw Jack

thingiverse

A machinist jack is a basic yet highly practical device utilized extensively in machine shops to level and support components in a vise. Its functionality is especially beneficial for lengthy parts and those situated at various angles. Consider this a cost-effective although light-duty substitute for a steel set: (Link to steel version on Amazon - http://amzn.to/28MtWex) Instructions: I printed the entirety at 50% hexagonal infill. It is advisable to use a mild support system that can be readily removed after printing, such as a 6mm pattern spacing, 6mm interface pattern spacing, and 1 interference layer. The blocks are designed specifically for a fully threaded bolt measuring 1.25" in length with an outer diameter of 5/16". (A nylock nut and threaded rod were utilized in the image instead due to the unavailability of a full-length bolt.)