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87 lines
2.6 KiB
87 lines
2.6 KiB
/////////////////////////////////////////////////////////////////////////////////
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// Adapter for drilling machine in the embedded lab.
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//
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// Author: Maximilian Stiefel
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// Last modification: 10.06.2017
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/////////////////////////////////////////////////////////////////////////////////
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/////////////////////////////////////////////////////////////////////////////////
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// Vars
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/////////////////////////////////////////////////////////////////////////////////
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holder_height = 175;
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holder_width = 15;
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holder_depth = 5;
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notch_height = 120;
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notch_width = 2;
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notch_depth = 3;
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allowance = 0.5;
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crossbar_height = 10 + allowance;
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crossbar_width = 5 + allowance;
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crossbar_depth = 175;
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pillar_height = 20;
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pillar_width = 15;
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pillar_depth = holder_depth;
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airpump_diameter = 30;
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// Suitable for M3 screw thread
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hole_diameter = 2.5;
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// Height difference between notch for PCB and the actual holder
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height_diff_1 = holder_height - notch_height;
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// Height difference between notch position and crossbar_slot
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height_diff_2 = 0.7*height_diff_1 - airpump_diameter/2;
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// Width difference between crossbar and holder
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width_diff_1 = holder_width - crossbar_width;
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// With difference between
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width_diff_2 = pillar_width - holder_width;
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/////////////////////////////////////////////////////////////////////////////////
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// Action
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/////////////////////////////////////////////////////////////////////////////////
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difference()
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{
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union()
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{
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// Cube for the base holder
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cube([holder_width, holder_depth, holder_height], center = false);
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// Pillars
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translate([holder_width, 0, 0])
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cube([pillar_width, pillar_depth, pillar_height]);
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translate([-pillar_width , 0, 0])
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cube([pillar_width, pillar_depth, pillar_height]);
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}
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union()
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{
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// Drill holes for air pump
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translate([holder_width/2, holder_depth + 1, 0])
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rotate([90, 0, 0])
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cylinder(h = holder_depth + 2, r = airpump_diameter/2);
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// Cube for notch
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translate([holder_width/2 - notch_width/2, -1, 0.7*height_diff_1])
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cube([notch_width, notch_depth, notch_height], center = false);
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// Slots for crossbars
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translate([width_diff_1/2, -1, height_diff_2/2 + airpump_diameter/2 - crossbar_height/2])
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cube([crossbar_width, holder_depth + 2, crossbar_height], center = false);
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translate([width_diff_1/2, -1, holder_height - 0.3*height_diff_1/2 - crossbar_height/2])
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cube([crossbar_width, holder_depth + 2, crossbar_height], center = false);
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// Drill holes for screws
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translate([-1, holder_depth/2, height_diff_2/2 + airpump_diameter/2])
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rotate([0, 90, 0])
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cylinder(h = 9, r = hole_diameter/2);
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translate([-1, holder_depth/2, holder_height - 0.3*height_diff_1/2])
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rotate([0, 90, 0])
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cylinder(h = 9, r = hole_diameter/2);
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}
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}
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