refactor yBar with new application pattern

rack/config.scad

@@ -3,8 +3,8 @@
    This file contains parameters used for declaring/generating a customized rack frame.
 
    - All dimensions are in millimetres (mm) unless stated otherwise.
-   - A "_N" appended to a module is meant to denote that this module is a negative volume, and should only be used to
-     substract from other volumes.
+   - "_N" appended to a module is meant to denote that this module is a negative volume, and should only be used to
+     substract from other volumes. "_P" is meant to denote a positive value. Modules are positive by default.
 */
 
 // Maximum width for rackmount units. Change this according your max expected enclosure width.
@@ -33,5 +33,5 @@ rackFrameScrewType = "m3";
 // Currently, only m3 screws are supported here (tolerance issues)
 assert(rackFrameScrewType == "m3");
 
-// Fillet radius
+// Fillet radius for main rack profile
 baseRoundness = 5;

rack/yBar.scad

@@ -30,10 +30,18 @@ joinCornerDepth = 32;
 echo("Bar total depth: ", yBarDepth);
 echo("Bar total width: ", yBarWidth);
 
+*yBar();
 
 module yBar() {
 
-  module positive() {
+  applyBaseConnector()
+  applyStackConnector()
+  applySideWallConnector()
+  applyRailConnector()
+  applyXBarConnector()
+  base();
+
+  module base() {
     difference() {
       sphericalFiletEdge(yBarWidth, yBarDepth, yBarHeight, yBarRoundness);
 
@@ -42,58 +50,68 @@ module yBar() {
     }
   }
 
-  module singleCornerNoStackConnector_N() {
-    union() {
+  module applyBaseConnector() {
+    apply_pn() {
+      mirrorOtherCorner() {
+        translate(v = [yBarWidth-12, joinCornerDepth, 0.01]) // why do we need 0.01 here???
+        yBarBasePlateMount_P();
+      }
+
+      mirrorOtherCorner() {
+        translate(v = [yBarWidth-12, joinCornerDepth, 0])
+        yBarBasePlateMount_N();
+      }
+
+      children(0);
+    }
+  }
+
+  module applyStackConnector() {
+    apply_n() {
+      mirrorOtherCorner()
       translate(v = [5, 5, 0])
       stackConnectorSocket_N();
 
+      children(0);
+    }
+  }
+
+  module applySideWallConnector() {
+    apply_n() {
+      mirrorOtherCorner()
+      translate(v = [yBarWidth-(railTotalWidth+railSlotSpacing)-9, railSlotSpacing, yBarHeight])
+      sideWallConnector_N();
+
+      children(0);
+    }
+  }
+
+  module applyRailConnector() {
+    apply_n() {
+      mirrorOtherCorner()
       translate(v = [yBarWidth-(railTotalWidth+railSlotSpacing), railSlotSpacing, yBarHeight-railFootThickness])
       railFeetSlot_N();
 
+      children(0);
+    }
+  }
+
+  module applyXBarConnector() {
+    apply_n() {
+      mirrorOtherCorner()
       translate(v = [yBarWidth+eps, 0, 0])
       xBarConnectorFromY_N();
 
-      translate(v = [yBarWidth-(railTotalWidth+railSlotSpacing)-9, railSlotSpacing, yBarHeight])
-      sideWallConnector_N();
+      children(0);
     }
   }
 
-    module yBar() {
-
   module mirrorOtherCorner() {
     children(0);
 
     translate(v = [0, yBarDepth, 0])
-      mirror(v = [0, 1, 0]) {
+    mirror(v = [0, 1, 0])
     children(0);
   }
-    }
 
-    difference() {
-
-      union() {
-        positive();
-
-        mirrorOtherCorner()
-        translate(v=[yBarWidth-12, joinCornerDepth,0.01])
-        yBarBasePlateMount_P(mountX=12, mountZ=yBarHeight);
-      }
-      union() {
-        mirrorOtherCorner()
-        singleCornerNoStackConnector_N();
-
-        mirrorOtherCorner()
-        translate(v=[yBarWidth-12, joinCornerDepth, 0])
-        yBarBasePlateMount_N();
-      }
-    }
-  }
-
-  yBar();
 }
-
-translate(v=[yBarWidth-12, joinCornerDepth, m3CounterSunkHeadLength])
-*yBarBasePlateMount_N();
-yBar();
-
-//counterSunkHead_N("m3", 1, 1);

rack/yBarBasePlateConnector.scad

@@ -1,21 +1,25 @@
 include <../helper/common.scad>
+include <../helper/halfspace.scad>
 include <../helper/screws.scad>
 include <./config.scad>
 
 _mountX = 12;
-_mountY = 12;
-_mountZ = 12;
+_mountY = 14;
+_mountZ = 13;
 
 // x and y faces of the yBarBasePlateMount_P block
 _innerXFaceToScrew = 6;
-_innerYFaceToScrew = 6;
+_innerYFaceToScrew = 8;
 
 _baseConnRecession = 3;
 _baseConnY = 8;
 _baseConnOuterXFaceToScrew = 2;
 
 module yBarBasePlateMount_P() {
-  cube(size=[_mountX, _mountY, _mountZ]);
+  intersection() {
+    cube(size = [_mountX, _mountY, _mountZ]);
+    halfspace(vpos=[0, -1, -1], p=[0, _mountY-1, _mountZ-1]);
+  }
 }
 
 module yBarBasePlateMount_N() {
@@ -27,11 +31,18 @@ module yBarBasePlateMount_N() {
   mirror(v=[0,0,1])
     heatSetInsertSlot_N(rackFrameScrewType, topExtension=inf10);
 
-  translate(v=[_baseConnOuterXFaceToScrew, heatSetY - _baseConnY/2,0])
-  cube(size=[inf50, _baseConnY, _baseConnRecession]);
+
+  hull() {
+
+    translate(v = [heatSetX, heatSetY, 0])
+    cylinder(r=_baseConnY/2, h=_baseConnRecession);
+
+    translate(v = [inf50, heatSetY-_baseConnY/2, 0])
+    cube(size = [eps, _baseConnY, _baseConnRecession]);
+  }
 }
 
-difference() {
+*difference() {
   yBarBasePlateMount_P();
   yBarBasePlateMount_N();
 }