Friday, March 17, 2017

HMT Rajat Caseback Unscrewer

This week, I'm releasing the final version of the HMT Caseback Remover 3D design, furnished in OpenSCAD form. License is CC BY-NC-SA 4.0 (Attribution-NonCommercial-ShareAlike 4.0 International. 3D print your own!



How can the file be used to unscrew one's own HMT watch?


There are seven variables needed to fill out the file:

circle_fn: The resolution of the exported file. "60" is a good resolution, although it will take a while to export. Try "12" for visualizing changes in the edits.

watch_back_width: The diameter of the entire caseback of the watch.
watch_back_top_widthThe diameter of the top part of the caseback of the watch.
watch_back_heightThe height of the entire caseback of the watch.

square_size: The side length of one of the indented squares.
square_dist_between: The distance between the inner edges of the indented squares.
square_lift: The height to which the indented squares are raised from the bottom of the caseback.



watch_back_width:










watch_back_top_width:









watch_back_height:






square_size:
















square_dist_between:













square_lift: 0 mm for the bottom watch (HMT Kailash) but is 0.5 mm for the left watch (HMT Rajat):












The watch I am working with this time:






Printing out the caseback remover: