Micrometer - Fully printed and working!

thingiverse

This is a version 2 of a project I worked on over two years ago, but never really completed - until now! This 0-1 micrometer boasts a 50mm theoretical measurement range and a 0.01mm resolution, all achieved through entirely 3D printed parts without supports, featuring an adjustable zero screw and a ratchet end. All the components are already optimally oriented for printing, with my suggestion being to print them one at a time to achieve a superior finish. A 0.1mm layer height is mandatory, while a 0.2mm nozzle is recommended, although I successfully used a 0.4 nozzle on mine. I recommend printing Adjustment_Screw and Adjustment_Screw_Insert first to ensure a perfect fit. If necessary, reduce the scale of Adjustment_Screw by 1% in the x and y directions only, then print again. Once all parts are printed, glue Adjustment_Screw_Insert and Main_Screw_Insert into Body using CA glue, which works great. Insert Thimble into Main_Screw, Ratchet into Thimble, and Knruled_Grip over all that with a little bit of glue. Align the 0 on Main_Screw to match the 0 on the body and adjust Adjustment_Screw with a 6mm Allen until contact is made. Use Ratchet to unscrew and screw back for verification, ensuring 0 is well set. Securely glue Adjustment_Screw in place with hot glue, but it can be removed for readjustment. Solidworks files are available in the .zip folder for your use.