update

cases/profiles/rpi/frontPlate.scad

@@ -0,0 +1,129 @@
+include <../common.scad>
+include <../rack/screws.scad>
+include <../sinusoid.scad>
+
+vU = 2;
+uHeight = 10;
+
+plateScrewDiffV = uHeight*vU;
+plateScrewDiffH = 180;
+
+plateScrewToHEdge = 4.5;
+plateScrewToVEdge = 5.5;
+
+frontPlateThickness = 2.5;
+
+frontPlateV = plateScrewDiffV + 2*plateScrewToHEdge;
+frontPlateH = plateScrewDiffH + 2*plateScrewToVEdge;
+
+
+plateScrewToBoxMin = 6;
+
+
+length = 170;
+resolution = 250;
+period = PI/6;
+shift = 0.0;
+amplitudeFunction = function(x)  2;
+
+module _frontPlateBody() {
+
+    difference() {
+        translate(v = [- plateScrewToVEdge, 0, - plateScrewToHEdge])
+            cube(size = [frontPlateH, frontPlateThickness, frontPlateV]);
+    }
+
+    translate(v=[5,-3,-1])
+        rotate(a=[180,0,0])
+            sineWaveHull(length, resolution, amplitudeFunction, period+0.02, 2, 5);
+
+    translate(v=[5,-3,4-1])
+        rotate(a=[180,0,0])
+            sineWaveHull(length, resolution, amplitudeFunction, period, 2 , 5);
+
+    translate(v=[5,-3,8-1])
+        rotate(a=[180,0,0])
+            sineWaveHull(length, resolution, amplitudeFunction, period+0.03, 2.5, 5);
+
+    translate(v=[5,-3,12-1])
+        rotate(a=[180,0,0])
+            sineWaveHull(length, resolution, amplitudeFunction, period+0.1, 3.3, 5);
+
+    translate(v=[5,-3,16-1])
+        rotate(a=[180,0,0])
+            sineWaveHull(length, resolution, amplitudeFunction, period+0.1, 5, 5);
+
+    translate(v=[5,-3,20-1])
+        rotate(a=[180,0,0])
+            sineWaveHull(length, resolution, amplitudeFunction, period+0.1, 6, 5);
+
+    translate(v=[5,-3,24-1])
+        rotate(a=[180,0,0])
+            sineWaveHull(length, resolution, amplitudeFunction, period+0.08, 7, 5);
+}
+
+module _plateHole() {
+    rotate(a=[90,0,0])
+        cylinder(r=m4RadiusSlacked, h=inf, center=true);
+}
+
+
+module frontPlate() {
+
+    difference() {
+        _frontPlateBody();
+
+        union() {
+            // TODO: introduce helper modules for this pattern
+            _plateHole();
+
+            translate(v=[plateScrewDiffH,0,0])
+                _plateHole();
+
+            translate(v=[0,0,plateScrewDiffV])
+                _plateHole();
+
+            translate(v=[plateScrewDiffH,0,plateScrewDiffV])
+                _plateHole();
+
+        }
+    }
+}
+
+difference() {
+difference() {
+
+    difference() {
+        union() {
+            rotate(a = [- 90, 0, 0])
+                frontPlate();
+        }
+
+        union() {
+            translate(v=[1,0,0])
+                rotate(a=[0,-15, 0])
+                    translate(v=[0,-50,0])
+                        cube(size=[100, 100, 30]);
+
+            translate(v=[180-1,0,0])
+                mirror(v=[1,0,0]) {
+                    rotate(a = [0, - 15, 0])
+                        translate(v = [0, - 50, 0])
+                            cube(size = [100, 100, 30]);
+                }
+        }
+
+    }
+    // lug holes
+    union() {
+        translate(v=[160,-3,-frontPlateThickness])
+            cube(size=[5.2, 5.2, 3]);
+        translate(v=[160-91.1,-3,-frontPlateThickness])
+            cube(size=[5.2, 5.2, 3]);
+    }
+}
+    for (i=[0:5]) {
+        translate(v=[5,i*4 - 0.75,-10])
+        cube(size=[170, 1.5, 20]);
+    }
+}