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MUSB D511 USB 2.0 Type B TWP-4002D-H3, https://www.technik.com.hk/images/pdf_product/WP4002D-H3-A_2.0.pdf USB Micro B SMD right angle http://www.alps.com/prod/info/E/HTML/Tact/SnapIn/SKHH/SKHHLUA010.html tactile switch D Switch, single pole normally-open tactile switch Light Touch Switch, https://industrial.panasonic.com/cdbs/www-data/pdf/ATK0000/ATK0000CE7.pdf 0 2 2 Button_Switch_SMD SW_SPST_EVQPE1 Light Touch Switch, https://industrial.panasonic.com/cdbs/www-data/pdf/ATK0000/ATK0000CE28.pdf Binary files /dev/null and b/sr1_full.png differ aac0a4a5b4 Notes from MK's PCB livestream - avoid non-circular holes in footprints whenever possible; some fabs charge more for ovals avoid non-circular holes in footprints whenever possible; some fabs charge more for ovals PCB layout: make power connection traces larger; MK uses .6mm -- this is the diameter measuring 90degrees on the circumference of the set screw hole // D shaft shape for shaft center=true); // Flat for D-shaped hole // begin arrow top cutout cylinder(r=8, h=10, $fn=3, center=true); for (z = [0 : sphere_indents_count]) { z_position = sphere_indents_radius + (enable_stem ? Stem_height : 0) + knob_height - sphere_indents_cutdepth.

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