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99 lines
2.6 KiB
99 lines
2.6 KiB
7 years ago
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/*
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Open freecad, select Workbench OpenSCAD
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import file, select group, save as freecad file,
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close, open freecad file and export to 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_pins=7; // number of pins
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pin_pitch=2.54; // pin pitch
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pin_thick=0.7;
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// 0.96" COLOR OLED SSD1331
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body=[27.2,30.7,2]; // PCB dimensions of the display
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height=6; // body above z axis
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hole_d=2.5; // hole diameter
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hole_edge=2; // hole center to body edge
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color_body=[0.03,0.03,0.15];
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color_rgbw=[[1,0,0],[0,1,0],[0,0,1],[1,1,1]];
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// pin protrusions
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pin_above=1; // above the display
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pin_below=2; // below the height
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color_pin="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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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 oled()
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{
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translate([0,(body[1]/2-pin_pitch*0.75),-body[2]/2+height])
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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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union()
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{
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// color stripes display simulation
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for(i=[0:len(color_rgbw)-1])
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translate([0,-body[1]/8*(i-len(color_rgbw)/2+0.5),body[2]/2])
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color(color_rgbw[i])
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cube([body[0]*0.9,body[1]/8,0.1],center=true);
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// holes
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for(i=[-1:2:1])
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for(j=[-1:2:1])
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translate(
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[
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i*(body[0]/2-hole_edge),
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j*(body[1]/2-hole_edge),
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0
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])
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cylinder(d=hole_d,h=body[2]+0.1,$fn=24,center=true);
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}
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}
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// the pins
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for(i = [0:n_pins-1])
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{
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// pins
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translate([(i-n_pins/2+0.5)*pin_pitch,0,-body[2]/2*0+(height+pin_above+pin_below)/2-pin_below])
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color(color_pin)
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cube([pin_thick,pin_thick,height+pin_above+pin_below],center=true);
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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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oled();
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