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111 lines
2.8 KiB
111 lines
2.8 KiB
/*
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Open freecad, select Workbench OpenSCAD
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import file, select group and export to
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VRML 2.0 (wrl file)
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https://www.freecadweb.org/wiki/Import_OpenSCAD_code
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*/
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n_switches=4; // number of dip switches
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pitch=2.54; // pin pitch
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body=[(n_switches+0.5)*pitch, 3*pitch, 1.5*pitch];
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height=pitch/8; // body above z axis
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color_body="maroon";
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swhole=[pitch*0.5,pitch,pitch*0.5];
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button=[pitch*0.4,pitch*0.4,pitch*0.5];
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color_button="white";
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font = "Liberation Sans";
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letter_size = pitch/2;
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letter_height = pitch/16;
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color_letter="white";
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enable_letter=0; // letters don't work after exporting to VRML
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color_pin="white";
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module letter(l,scale=1)
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{
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// Use linear_extrude() to make the letters 3D objects as they
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// are only 2D shapes when only using text()
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linear_extrude(height = letter_height*scale)
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{
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text(l, size = letter_size*scale, font = font, halign = "center",
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valign = "center", $fn = 16);
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}
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}
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module inscription(scale=1)
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{
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translate([
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(0-n_switches/2+0.5)*pitch,
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body[1]/2-letter_size,
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body[2]/2-letter_height*scale])
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letter("ON");
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for(i = [0:n_switches-1])
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{
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translate([
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(i-n_switches/2+0.5)*pitch,
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-body[1]/2+letter_size,
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body[2]/2-letter_height*scale])
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letter(chr(48+(i+1)%10));
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}
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}
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module dipsw_smd()
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{
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translate([0,0,body[2]/2+height]) // little above
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// union()
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{
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// cut off holes for switches
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difference()
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{
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color(color_body)
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cube(body,center=true);
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{
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// holes for switches - imports to freecad but exports wrong to VRML of Kicad
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for(i = [0:n_switches-1])
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{
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translate([(i-n_switches/2+0.5)*pitch,0,body[2]/2-swhole[2]/2+0.0001])
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color(color_body)
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cube(swhole,center=true);
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}
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// pin 1 mark
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translate([(-body[0])/2+pitch/3,-body[1]/2+pitch/2,body[2]/2])
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color(color_letter)
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cylinder(r=pitch/8,h=0.1,$fn=6,center=true);
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// cut off space for letters
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if(enable_letter>0.5)
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translate([0,0,0.1])
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color(color_letter)
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inscription();
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}
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}
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// buttons
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if(1)
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for(i = [0:n_switches-1])
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{
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translate([(i-n_switches/2+0.5)*pitch,swhole[1]/2-button[1]/2-(swhole[0]-button[0])/2,body[2]/2-button[2]/2+0.2])
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color(color_pin)
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cube(button,center=true);
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}
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// the pins
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for(i = [0:n_switches-1])
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{
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// pins
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for(j = [-1:2:1])
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translate([(i-n_switches/2+0.5)*pitch, j*(body[1]/2+pitch*0.6/2),-body[2]/2-height+pitch/12])
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color(color_pin)
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cube([pitch/3,pitch*0.6,pitch/6],center=true);
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}
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}
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}
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// scale(1/2.54) // required scale for KiCAD VRML file dipswitch_smd.wrl
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// rotate([0,0,90])
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dipsw_smd();
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