Initial commit

2018-12-21 08:12:54 +00:00
commit 30903a207b
26 changed files with 2851 additions and 0 deletions
--- a/8x32-ledmatrix-back.scad
+++ b/8x32-ledmatrix-back.scad
@@ -0,0 +1,56 @@
+/**
+ * Combine with '32x8 LED Matrix grid for diffuser'
+ * https://www.thingiverse.com/thing:1903744
+ *
+ * 12x 2.6x10mm plastic screws
+ *
+ *   -- noah@hack.se, 2018
+ *
+ */
+
+
+module polyhole(d, h) {
+    n = max(round(2 * d),3);
+    rotate([0,0,180])
+        cylinder(h = h, r = (d / 2) / cos (180 / n), $fn = n);
+}
+
+thickness=5;
+cylSize=6.25;
+screwXDistance=75;
+screwYDistance=86;
+
+difference() {
+    union() {
+        // 2x3 screw holes
+        for(x=[0,1,2]) {
+            translate([x*screwXDistance,0,0]) polyhole(d=cylSize, h=thickness);
+            translate([x*screwXDistance,screwYDistance,0]) polyhole(d=cylSize, h=thickness);
+        }
+        // Stabilizator
+        translate([2*screwXDistance-8,-cylSize/2,0]) rotate([0,0,45])cube([14,5,thickness]); 
+        translate([2*screwXDistance+19.5,screwYDistance,0]) polyhole(d=cylSize, h=thickness);
+
+        // X beams to joins screw holes
+        for(x=[0,1]) {
+            translate([x*screwXDistance,-cylSize/2,0]) cube([screwXDistance,thickness, thickness]);
+            translate([x*screwXDistance,cylSize/2-thickness+screwYDistance,0]) cube([screwXDistance,thickness, thickness]);
+        }
+        // Stabilizator
+        translate([2*screwXDistance,cylSize/2-thickness+screwYDistance,0]) cube([19.5+cylSize/2,thickness, thickness]);
+
+        // Y beam to join screw holes
+        translate([-cylSize/2,0,0]) cube([thickness, 86, thickness]);
+        for(x=[1,2])
+        translate([x*screwXDistance-thickness/2, 0, 0]) cube([thickness, screwYDistance, thickness]);
+    }
+    // Screw holes
+    for(x=[0,1,2]) {
+        translate([x*screwXDistance,0,-1]) polyhole(d=2.2, h=thickness+2);
+        translate([x*screwXDistance,screwYDistance,-1]) polyhole(d=2.2, h=thickness+2);
+    }
+    // Stabilizator hole
+    translate([2*screwXDistance+19.5,screwYDistance,-1]) polyhole(d=2.2, h=thickness+2);
+    // Stabilizator removal bottom side
+#    translate([2*screwXDistance-cylSize/2-0.5,-cylSize/2-0.5,-1]) cube([cylSize+1,cylSize+1, thickness+2]);
+}