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Customizable Thumb Knob - Metric

by Harrison, published

Customizable Thumb Knob - Metric by Harrison Jan 28, 2013

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5143Views 1015Downloads Found in Hand Tools
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Summary

I wanted to make something truly useful, where customizations of the object are themselves useful (to people other than the original customizer).

This thumb knob works for nuts, HHCS, and socket head cap screw. Metric and imperial versions will have different lookup tables.

Instructions

Customize by setting the thread size, number of prongs, and a whole lot more. Use with the appropriate nut, socket head cap screw, or hex head cap screw.

Within the .scad file are a few "lookup tables" with values for hex width for nuts and HHCS and head diameter for SHCS. The HHCS and Nut have a default clearance (.25mm) built in. The SHCS is line-to-line. All values are pulled from the McMaster-Carr website.

Still to do:

  1. English version

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Mar 25, 2015 - Modified Mar 25, 2015

Hello

there is some error:
at line 157 replace

translate([0,0,-.1]) cylinder(h=Wall_Thickness+hex_height+.2, r = Thread_Size/2+.25);

by

translate([0,0,-.1]) cylinder(h=Wall_Thickness+hex_height+.2, r=thread_d[Thread_Size]/2+0.25);

and at line 205 replace

hex_w_table=[3.2,4,5,5.5,7,8,10,13,16,18,21,24,30,36];

by

hex_w_table=[3.2,4,5,5.5,7,8,10,13,17,19,22,24,30,36];

Interesting. Not really interested in taking the time to fix this but feel free to remix! Cheers.

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