Rev 3889 Rev 3890
1   1  
2 pedestal_height = 2; // designed for use the MLAB standard 12mm screws. 2 pedestal_height = 2; // designed for use the MLAB standard 12mm screws.
3 mount_hole = 3.5; 3 mount_hole = 3.5;
4 clear = 0.175; 4 clear = 0.175;
5   5  
6 MLAB_grid_xoffset = 3.88; 6 MLAB_grid_xoffset = 3.88;
7 MLAB_grid_yoffset = 4.2; 7 MLAB_grid_yoffset = 4.2;
8 MLAB_grid = 10.16; 8 MLAB_grid = 10.16;
9   9  
10 legs_height = 5; 10 legs_height = 5;
11   11  
12 $fn=20; 12 $fn=20;
13   13  
-   14 module leg () {
-   15 difference () {
-   16 cylinder(r=MLAB_grid/2 + 0.3,h=legs_height);
-   17 cylinder(r=MLAB_grid/2 - 0.3,h=legs_height);
-   18 }
-   19 }
-   20  
14 difference () { 21 difference () {
15 minkowski() 22 minkowski()
16 { 23 {
17 cube([150,110,pedestal_height]); // base plastics brick 24 cube([150,110,pedestal_height]); // base plastics brick
18 cylinder(r=5,h=0.1); 25 cylinder(r=5,h=0.1);
19 } 26 }
20 // MLAB grid holes 27 // MLAB grid holes
21 grid_list = [for (j = [MLAB_grid_xoffset : MLAB_grid: 150], i = [MLAB_grid_yoffset :MLAB_grid: 110]) [j, i] ]; 28 grid_list = [for (j = [MLAB_grid_xoffset : MLAB_grid: 150], i = [MLAB_grid_yoffset :MLAB_grid: 110]) [j, i] ];
22 for (j = grid_list) { 29 for (j = grid_list) {
23 translate (concat(j, [0])) 30 translate (concat(j, [0]))
24 cylinder (h = 2*pedestal_height, r= mount_hole/2); 31 cylinder (h = 2*pedestal_height, r= mount_hole/2);
25 } 32 }
26 } 33 }
27   34  
28 translate ([MLAB_grid_xoffset, MLAB_grid_yoffset, 2]) 35 translate ([MLAB_grid_xoffset, MLAB_grid_yoffset, 2])
29 difference () { -  
30 cylinder(r=MLAB_grid/2 + 0.3,h=legs_height); -  
31 cylinder(r=MLAB_grid/2 - 0.3,h=legs_height); -  
32 } 36 leg();
33   37  
34 translate ([MLAB_grid_xoffset + 14*MLAB_grid, MLAB_grid_yoffset, 2]) 38 translate ([MLAB_grid_xoffset + 14*MLAB_grid, MLAB_grid_yoffset, 2])
35 difference () { -  
36 cylinder(r=MLAB_grid/2 + 0.3,h=legs_height); -  
37 cylinder(r=MLAB_grid/2 - 0.3,h=legs_height); -  
38 } 39 leg();
39   -  
40   40  
41 translate ([MLAB_grid_xoffset + 14*MLAB_grid, MLAB_grid_yoffset + 10*MLAB_grid, 2]) 41 translate ([MLAB_grid_xoffset + 14*MLAB_grid, MLAB_grid_yoffset + 10*MLAB_grid, 2])
42 difference () { 42 leg();
-   43  
43 cylinder(r=MLAB_grid/2 + 0.3,h=legs_height); 44 translate ([MLAB_grid_xoffset + 7*MLAB_grid, MLAB_grid_yoffset + 5*MLAB_grid, 2])
44 cylinder(r=MLAB_grid/2 - 0.3,h=legs_height); -  
45 } 45 leg();
46   46  
47 translate ([MLAB_grid_xoffset, MLAB_grid_yoffset + 10*MLAB_grid, 2]) 47 translate ([MLAB_grid_xoffset, MLAB_grid_yoffset + 10*MLAB_grid, 2])
48 difference () { -  
49 cylinder(r=MLAB_grid/2 + 0.3,h=legs_height); -  
50 cylinder(r=MLAB_grid/2 - 0.3,h=legs_height); -  
51 } 48 leg();
52 49