Rev 3905 Rev 3907
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1   1  
2 pedestal_height = 13; // designed for use the MLAB standard 12mm screws. 2 pedestal_height = 13; // designed for use the MLAB standard 12mm screws.
-   3 x_size = 87;
-   4 y_size = 58;
3 mount_hole = 3.5; 5 mount_hole = 3.5;
4 clear = 0.175; -  
5 nut_size = 6.6; 6 nut_size = 6.8;
6   -  
7 MLAB_grid_xoffset = 7.36; -  
8 MLAB_grid_yoffset = 5.61; 7 nut_size25 = 5.7;
9 MLAB_grid = 10.16; 8 MLAB_grid = 10.16;
10   9  
-   10 x_holes = floor(x_size / MLAB_grid);
-   11 y_holes = floor(y_size / MLAB_grid);
-   12  
-   13 MLAB_grid_xoffset = (x_size - (x_holes * MLAB_grid))/2;
-   14 MLAB_grid_yoffset = (y_size - (y_holes * MLAB_grid))/2;
-   15  
11 ODROID_holes_offset = 5.25; 16 ODROID_holes_offset = 5.25;
12 ODROID_holes_xdistance = 86; 17 ODROID_holes_xdistance = 86;
13 ODROID_holes_ydistance = 82; 18 ODROID_holes_ydistance = 82;
14   19  
15 difference () { 20 difference () {
16 cube([85,56,pedestal_height]); // base plastics brick 21 cube([x_size, y_size ,pedestal_height]); // base plastics brick
17   22  
18 //mount holes for Raspberry Pi model A/B 23 //mount holes for Raspberry Pi model A/B
19   24  
20 translate ([ODROID_holes_offset, ODROID_holes_offset,0]) 25 translate ([26.5, 19, 0])
21 cylinder (h = 6, r= (nut_size+clear)/2, $fn=6); 26 cylinder (h = 6, r= nut_size25/2, $fn=6);
22 translate ([ODROID_holes_offset, ODROID_holes_offset, 6.2]) // one solid layer for slicer (the holes will be pierced on demand ) 27 translate ([26.5, 19, 6.2]) // one solid layer for slicer (the holes will be pierced on demand )
23 cylinder (h = pedestal_height, r= mount_hole/2, $fn=10); 28 cylinder (h = pedestal_height, r= 2.9/2, $fn=30);
24   29  
25 translate ([ODROID_holes_offset + ODROID_holes_xdistance, ODROID_holes_offset, 0]) 30 translate ([81, 44.5, 0])
26 cylinder (h = 6, r= (nut_size+clear)/2, $fn=6); 31 cylinder (h = 6, r= nut_size25/2, $fn=6);
27 translate ([ODROID_holes_offset + ODROID_holes_xdistance, ODROID_holes_offset, 6.2]) // one solid layer for slicer (the holes will be pierced on demand ) 32 translate ([81, 44.5, 6.2]) // one solid layer for slicer (the holes will be pierced on demand )
28 cylinder (h = pedestal_height, r= mount_hole/2, $fn=10); 33 cylinder (h = pedestal_height, r= 2.9/2, $fn=30);
29   -  
30   -  
31 ///////////////////////////////////////// -  
32 // holes for components at the bottom side of the PCB. -  
33   -  
34 translate ([15.5, 84 , pedestal_height - 3]) // IO connector -  
35 cube([64, 6, 5]); -  
36 -  
37 translate ([3, 9, pedestal_height - 3.5]) // USB connector -  
38 cube([18,33,5]); -  
39   -  
40   -  
41 translate ([9, 2.1 , pedestal_height - 3.5]) // HOLE for ODROD's USB and Ethernet connectors -  
42 cube([73,27,5]); -  
43   -  
44 translate ([66, 0 , pedestal_height - 3.5]) // HOLE for ODROD's Passive components and power wires to MLAB UNIPOWER module. -  
45 cube([20,79,5]); -  
46   -  
47 translate ([0, 54 , pedestal_height - 3]) // Jack connectors -  
48 cube([30,28,5]); -  
49   -  
50   -  
51 translate ([22, 43 , pedestal_height - 3.5]) // eMMc Card -  
52 cube([27,18,5]); -  
53   34  
54 //////////////////////////////////////// 35 ////////////////////////////////////////
55   36  
56 // MLAB grid holes 37 // MLAB grid holes
57 grid_list = [for (j = [MLAB_grid_xoffset : MLAB_grid: 90], i = [MLAB_grid_yoffset :MLAB_grid: 95]) if (!(j>80 && i>80) && !(j<10 && i<10) && !(j<10 && i>80) && !(j>80 && i<10) ) [j, i] ]; 38 grid_list = [for (j = [MLAB_grid_xoffset : MLAB_grid: 86], i = [MLAB_grid_yoffset :MLAB_grid: 55])
-   39 if (!(j>20 && i>10 && j<50 && i<50) && !(j>75 && i>40 && j<90 && i<50) ) // exception for Raspberry mount holes
-   40 [j, i] ];
-   41
58 for (j = grid_list) { 42 for (j = grid_list) {
59 translate (concat(j, [0])) 43 translate (concat(j, [0]))
60 cylinder (h = 3, r= (nut_size+clear)/2, $fn=6); 44 cylinder (h = 3, r= nut_size/2, $fn=6);
61 translate (concat(j, [3.2])) // one solid layer for slicer (the holes will be pierced on demand ) 45 translate (concat(j, [3.2])) // one solid layer for slicer (the holes will be pierced on demand )
62 cylinder (h = pedestal_height /3, r= mount_hole/2, $fn=10); 46 cylinder (h = pedestal_height /3, r= mount_hole/2, $fn=30);
63 translate (concat(j, [6.0])) 47 translate (concat(j, [6.0]))
64 cylinder (h = 10, r= nut_size/2, $fn=6); 48 cylinder (h = 10, r= nut_size/2, $fn=6);
65 } 49 }
66 50
-   51 /////////////////////////////////////////
-   52 // holes for components at the bottom side of the PCB.
-   53  
-   54 difference () {
-   55 translate ([2, 2 , pedestal_height - 3]) //
-   56 cube([83, 54, 3]);
67 57
-   58 translate ([26.5, 19, pedestal_height - 5]) // Raspberry screw mount pile
68 //// lightening central holes 59 cylinder (h = pedestal_height, r= 4, $fn=20);
69 60  
-   61 translate ([77, 40.5, pedestal_height - 5]) // Raspberry screw mount brick
70 translate ([12.5,10, 0]) 62 cube([20,8,5]);
-   63 }
71 cube([71,22,pedestal_height ]); 64 translate ([0, 14 , pedestal_height - 4]) // SD Card
-   65 cube([20,30.5,5]);
-   66  
-   67 //// lightening central holes
72 68
73 translate ([12.5,42, 0]) 69 translate ([8, 8, 0])
74 cube([71,40,pedestal_height ]); 70 cube([14.5,y_size - 16,pedestal_height ]);
75   71  
-   72 translate ([30.5,8, 0])
-   73 cube([47, y_size - 16,pedestal_height ]);
76 } 74 }
77   75  
78   76