git.scottworley.com Git - tattlekey/blob - housing/cherryVoid.scad

   1 // Retrieved from https://www.thingiverse.com/thing:4120804
   2
   3 // Riskable's Cherry MX void/cutout module for making keyboard (top) plates and key switch testers
   4
   5 $fn = 32;
   6
   7 use <roundedCube.scad> // Because it's nice to have rounded corners on these sorts of things
   8
   9 // AUTHOR: Riskable <riskable@youknowwhat.com>
  10 // VERSION: 1.1 (Changelog is at the bottom)
  11 // LICENSE: Creative Commons - Attribution - Non-Commercial (if you want to use it in a commercial setting/product just ask!)
  12
  13 // NOTES
  14 /*
  15     * Feel free to use this .scad in your own projects to add proper Cherry MX-styled switch cutouts to keyboards, perhipherals, testers, or whatever you like.
  16     * You can just copy cherry_switch_void() into your own code if you like--it's entirely self-contained and reasonably small.  Just make sure to credit, "This module was written by Riskable:" or something like that =)
  17 */
  18
  19 /* Creates the shape of a (proper) Cherry MX switch hole.
  20     height: The thickness, really.  Doesn't impact PLATE_THICKNESS
  21     x_extra: Extra (void) space on the X axis (e.g. to save some plastic). Doesn't change the top plate.
  22     y_extra: Extra (void) space on the Y axis.  Same thing as X.
  23     tolerance: Extra room on all sides (0.1 default should be good for most printers)
  24     plate_thickness: How thick the top plate will be. Typical Cherry MX plates are about 1.5mm thick.
  25 */
  26 module cherry_switch_void(height=12, x_extra=0, y_extra=0, tolerance=0.1, plate_thickness=1.5, corner_radius=0.5) { // Cherry MX body is supposed to be 11.6mm
  27     switch_width = 15.6;
  28     switch_length = 14; // Slightly shorter because we're making an acurate profile (see below)
  29     center_space = 3.5; // Space between the cutouts on the sides of the switch
  30     sides_width = (5+center_space); // Taken from the Cherry MX developer PDF
  31     // Make the basic switch shape:
  32     cube(
  33         [switch_length+tolerance, switch_length+tolerance, height],
  34         center=true);
  35     // Profile for the sides:
  36     translate([0,sides_width/2,0])
  37         cube([switch_width-tolerance, center_space+tolerance, height], center=true);
  38     translate([0,-sides_width/2,0])
  39         cube([switch_width-tolerance,center_space+tolerance, height], center=true);
  40     // Fill out the rest with a solid cube so that there's a top plate + empty space beneath
  41     translate([0,0,plate_thickness])
  42         roundedCube(
  43             [switch_width+x_extra, switch_width+y_extra, height],
  44             r=corner_radius, center=true);
  45 }
  46
  47 /*
  48 CHANGELOG:
  49     1.1: Now using roundedCube so the interior edges aren't so sharp.
  50     1.0: Initial release
  51 */