bulk

cases/rpi/rpi2b.scad

@@ -0,0 +1,149 @@
+include <../common.scad>
+
+// All coordinates are in [x,y], or [x,y,z] format
+
+pcbDimensions = [56.0, 85.1]; // [x,y]
+pcbThickness = 1.42;
+
+
+// [+x, -x, +y, -y]
+pcbCaseSpace = [5, 2, 2, 2];
+
+pcbRise = 3;
+caseWallThickness = 2;
+caseBottomThickness = 2;
+
+
+mountPointDiameter = 2.69;
+mountPoints = [[3.65,23.30,0], [3.65,pcbDimensions[1]-3.65,0], [pcbDimensions[0]-3.65,23.30,0], [pcbDimensions[0]-3.65,pcbDimensions[1]-3.65,0]];
+
+module pcb() {
+  cube(size=[pcbDimensions[0], pcbDimensions[1], pcbThickness]);
+}
+
+module pcbCaseBottom_() {
+  translate(v=[-pcbCaseSpace[1]-caseWallThickness, -pcbCaseSpace[3]-caseWallThickness, -caseBottomThickness-pcbRise])
+  difference() {
+    cube(size=[
+           pcbDimensions[0]+pcbCaseSpace[0]+pcbCaseSpace[1] + 2*caseWallThickness,
+           pcbDimensions[1]+pcbCaseSpace[2]+pcbCaseSpace[3] + 2*caseWallThickness,
+           26 // 3u case, subtracted for and other bullshit
+           ]);
+    translate(v=[caseWallThickness, caseWallThickness, caseBottomThickness])
+    cube(size=[
+           pcbDimensions[0]+pcbCaseSpace[0]+pcbCaseSpace[1],
+           pcbDimensions[1]+pcbCaseSpace[2]+pcbCaseSpace[3],
+           26 // 3u case, subtracted 4 for lid and bullshit
+           ]);
+  }
+}
+
+module pcbCaseWithRisers_() {
+  union() {
+    translate(v=[0,0,-pcbRise]){
+      mountPoints_N(pcbRise, mountPointDiameter, mountPointDiameter, 32, false);
+      mountPoints_N(pcbRise+2, mountPointDiameter/2.5, mountPointDiameter/2.5, 32, false);
+    }
+    pcbCaseBottom_();
+  }
+}
+
+
+module cutoutProfileAirflow_N() {
+
+  // bottom cutouts
+  union() {
+    for (i=[0:11]) {
+      translate(v=[pcbDimensions[0]/2.0, i*6 + 10,0])
+        minkowski() {
+        cube(size=[30,1,20], center=true);
+        cylinder(h=1,r=1);
+      }
+    }
+  }
+
+  // back cutouts
+  for (i=[0:4]) {
+    translate(v=[i*10 + 7,pcbDimensions[1],4])
+    minkowski() {
+      
+        cube(size=[3,100,10], center=false);
+        rotate(a=[90,0,0])
+        cylinder(h=1,r=2);
+      }
+  }
+
+  // front cutout
+  translate(v=[pcbDimensions[0],2.5,1])
+  cube(size=[inf50, 80, 15]);
+}
+
+
+
+
+difference() {
+
+  union() {
+  pcbCaseWithRisers_();
+
+  // lugs
+  translate(v=[pcbDimensions[0]+caseWallThickness+pcbCaseSpace[0],-caseWallThickness-pcbCaseSpace[3],-pcbRise-caseBottomThickness])
+    cube(size=[2,5,5]);
+
+  translate(v=[pcbDimensions[0]+caseWallThickness+pcbCaseSpace[0],pcbDimensions[1]+pcbCaseSpace[2]-5+caseWallThickness,-pcbRise-caseBottomThickness])
+    cube(size=[2,5,5]);
+
+  }
+
+  union() {
+    cutoutProfile_N();
+    cutoutProfileAirflow_N();
+  }
+}
+
+
+//cutoutProfileAirflow_N();
+
+
+
+module mountPoints_N(cylHeight, cylRad1, cylRad2, cylFn, center) {
+  for (i=[0:3]) {
+    p = mountPoints[i];
+    translate(v=[p[0], p[1], p[2]])
+    cylinder(r1=cylRad1, r2=cylRad2, h=cylHeight, $fn=cylFn, center=center);
+  }
+  
+}
+
+
+*difference() {
+  union () {
+    pcb();
+    mountPoints_N(7, mountPointDiameter/2.5, mountPointDiameter/2.5, 32, false);
+    mountPoints_N(5, mountPointDiameter, mountPointDiameter, 32, false);
+  }
+
+  
+}
+
+module cutoutProfile_N() {
+
+
+  color([1,0,1])
+    union() {
+    // front I/O
+    mirror(v=[0,1,0])
+      translate(v=[2, -eps*100, pcbThickness])
+      cube(size=[52.0 + 0.1, inf50,  16.0 + 0.1]);
+
+    // side I/O
+    
+    translate(v=[-48, (pcbDimensions[1]-54)-5, pcbThickness])
+    cube(size=[inf50, 54, 8]);
+  }
+
+}
+
+//cutoutProfile_N();
+//pcb();
+