Better approach

cad/CyanBusTransceiver/PCBSocket.scad

@@ -12,7 +12,10 @@ nozzle = 0.4;
 pcb_w = 50.0 + nozzle;
 pcb_h = 21.5 + nozzle;
 
-pcb_z_off = 11.6;  // hieght of transceiver pcb above ground
+pcb_z_off = 12.0;  // height of transceiver pcb above ground
+
+
+M2_outer = 5.5;  // outer diameter for the M2 screw receptacles
 
 
 // s = socket
@@ -20,28 +23,52 @@ s_h = 13;
 s_w = pcb_w;
 
 
+// sc = screw; here: the M2 holes of the PCB
+sc_x = 8.25;
+sc_y = 7.75;
+
+
+// ph = PinHeader
+ph_led_x = 5.7;
+ph_485_x = -1.9 - 1.27;
+ph_led_w = 11.4 + 1.25;
+ph_485_w = 16.5 + 1.25;
+
+
+
+module screwPlacement(tz=0) {
+  translate([ sc_x, -sc_y, tz]) children();
+  translate([-sc_x,  sc_y, tz]) children();
+}
+
+// screwPlacement() cylinder(d=M2_outer, h=pcb_z_off);
+
 
-/* module PCBSocket() {
+module pinHeaders() {
+
+  translate([ph_led_x,  pcb_h/2, 0]) square([ph_led_w, 4*$str], center=true);
+  translate([ph_485_x, -pcb_h/2, 0]) square([ph_485_w, 4*$str], center=true);
   
-  difference() {
-    union() {
-      // body
-      translate([0, 0, 0]) cube([s_w, s_h, pcb_z_off]);
-      
-      // endings
-      pw2 = pcb_w / 2;
-      for (tx=[-pw2, pw2]) translate([tx, 0, 0]) cube([$str, 0, 0]);
-    }    
-  }
-} */
+}
 
 
 
 module PCBSocket() {
 
+  linear_extrude(pcb_z_off) {
+
   difference() {
-    square([pcb_w,           pcb_h         ], center=true);
-    square([pcb_w - 2*$str1, pcb_h - 2*$str], center=true);
+    union() {
+      difference() {
+        square([pcb_w,           pcb_h         ], center=true);
+        square([pcb_w - 2*$str1, pcb_h - 2*$str], center=true);
+      }
+      screwPlacement() circle(d=M2_outer);
+    }
+
+    pinHeaders();
+  }
+
 
   }