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pedestal_height = 13; // designed for use the MLAB standard 12mm screws. |
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pedestal_height = 13; // designed for use the MLAB standard 12mm screws. |
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x_size = 87; |
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x_size = 87; |
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y_size = 58; |
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y_size = 58; |
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mount_hole = 3.5; |
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mount_hole = 3.5; |
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nut_size = 6.8; |
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nut_size = 6.8; |
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nut_size25 = 6; |
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nut_size25 = 6.1; |
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MLAB_grid = 10.16; |
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MLAB_grid = 10.16; |
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x_holes = floor(x_size / MLAB_grid); |
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x_holes = floor(x_size / MLAB_grid); |
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y_holes = floor(y_size / MLAB_grid); |
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y_holes = floor(y_size / MLAB_grid); |
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MLAB_grid_xoffset = (x_size - (x_holes * MLAB_grid))/2; |
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MLAB_grid_xoffset = (x_size - (x_holes * MLAB_grid))/2; |
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MLAB_grid_yoffset = (y_size - (y_holes * MLAB_grid))/2; |
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MLAB_grid_yoffset = (y_size - (y_holes * MLAB_grid))/2; |
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difference () { |
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difference () { |
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cube([x_size, y_size ,pedestal_height]); // base plastics brick |
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cube([x_size, y_size ,pedestal_height]); // base plastics brick |
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//mount holes for Raspberry Pi model A/B |
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//mount holes for Raspberry Pi model A/B |
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translate ([26.5, 19, 0]) |
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translate ([26.5, 19, 0]) |
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rotate([0,0,90]) |
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rotate([0,0,90]) |
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cylinder (h = 6, r= nut_size25/2, $fn=6); |
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cylinder (h = 6, r= nut_size25/2, $fn=6); |
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translate ([26.5, 19, 6.2]) // one solid layer for slicer (the holes will be pierced on demand ) |
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translate ([26.5, 19, 6.2]) // one solid layer for slicer (the holes will be pierced on demand ) |
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cylinder (h = pedestal_height, r= 3.0/2, $fn=30); |
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cylinder (h = pedestal_height, r= 3.0/2, $fn=30); |
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translate ([81, 44.5, 0]) |
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translate ([81, 44.5, 0]) |
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rotate([0,0,90]) |
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rotate([0,0,90]) |
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cylinder (h = 6, r= nut_size25/2, $fn=6); |
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cylinder (h = 6, r= nut_size25/2, $fn=6); |
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translate ([81, 44.5, 6.2]) // one solid layer for slicer (the holes will be pierced on demand ) |
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translate ([81, 44.5, 6.2]) // one solid layer for slicer (the holes will be pierced on demand ) |
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cylinder (h = pedestal_height, r= 3.0/2, $fn=30); |
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cylinder (h = pedestal_height, r= 3.0/2, $fn=30); |
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//////////////////////////////////////// |
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//////////////////////////////////////// |
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// MLAB grid holes |
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// MLAB grid holes |
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grid_list = [for (j = [MLAB_grid_xoffset : MLAB_grid: 86], i = [MLAB_grid_yoffset :MLAB_grid: 55]) |
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grid_list = [for (j = [MLAB_grid_xoffset : MLAB_grid: 86], i = [MLAB_grid_yoffset :MLAB_grid: 55]) |
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if (!(j>20 && i>10 && j<50 && i<50) && !(j>75 && i>40 && j<90 && i<50) ) // exception for Raspberry mount holes |
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if (!(j>20 && i>10 && j<50 && i<50) && !(j>75 && i>40 && j<90 && i<50) ) // exception for Raspberry mount holes |
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[j, i] ]; |
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[j, i] ]; |
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for (j = grid_list) { |
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for (j = grid_list) { |
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translate (concat(j, [0])) |
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translate (concat(j, [0])) |
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cylinder (h = 3, r= nut_size/2, $fn=6); |
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cylinder (h = 3, r= nut_size/2, $fn=6); |
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translate (concat(j, [3.2])) // one solid layer for slicer (the holes will be pierced on demand ) |
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translate (concat(j, [3.2])) // one solid layer for slicer (the holes will be pierced on demand ) |
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cylinder (h = pedestal_height /3, r= mount_hole/2, $fn=30); |
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cylinder (h = pedestal_height /3, r= mount_hole/2, $fn=30); |
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translate (concat(j, [6.0])) |
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translate (concat(j, [6.0])) |
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cylinder (h = 10, r= nut_size/2, $fn=6); |
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cylinder (h = 10, r= nut_size/2, $fn=6); |
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} |
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} |
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///////////////////////////////////////// |
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///////////////////////////////////////// |
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// holes for components at the bottom side of the PCB. |
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// holes for components at the bottom side of the PCB. |
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difference () { |
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difference () { |
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translate ([2, 2 , pedestal_height - 3]) // |
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translate ([2, 2 , pedestal_height - 3]) // |
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cube([83, 54, 3]); |
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cube([83, 54, 3]); |
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translate ([26.5, 19, pedestal_height - 5]) // Raspberry screw mount pile |
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translate ([26.5, 19, pedestal_height - 5]) // Raspberry screw mount pile |
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cylinder (h = pedestal_height, r= 4, $fn=20); |
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cylinder (h = pedestal_height, r= 4, $fn=20); |
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translate ([77, 40.5, pedestal_height - 5]) // Raspberry screw mount brick |
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translate ([77, 40.5, pedestal_height - 5]) // Raspberry screw mount brick |
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cube([20,8,5]); |
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cube([20,8,5]); |
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} |
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} |
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translate ([0, 14 , pedestal_height - 4]) // SD Card |
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translate ([0, 14 , pedestal_height - 4]) // SD Card |
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cube([20,30.5,5]); |
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cube([20,30.5,5]); |
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//// lightening central holes |
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//// lightening central holes |
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translate ([8, 8, 0]) |
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translate ([8, 8, 0]) |
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cube([14.5,y_size - 16,pedestal_height ]); |
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cube([14.5,y_size - 16,pedestal_height ]); |
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translate ([30.5,8, 0]) |
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translate ([30.5,8, 0]) |
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cube([47, y_size - 16,pedestal_height ]); |
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cube([47, y_size - 16,pedestal_height ]); |
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} |
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} |
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