wip - add matrix transformations

helper/matrix.scad

@@ -0,0 +1,110 @@
+// Common matrix transformations
+
+identity = [
+    [1,0,0,0],
+    [0,1,0,0],
+    [0,0,1,0],
+    [0,0,0,1],
+  ];
+
+function scale(v) = [
+    [v[0],0,0,0],
+    [0,v[1],0,0],
+    [0,0,v[2],0],
+    [0,0,0,1]
+  ];
+
+function rotatex(a) = [
+    [1,0,0,0],
+    [0,cos(a),-sin(a),0],
+    [0,sin(a),cos(a),0],
+    [0,0,0,1]
+  ];
+
+function rotatey(a) = [
+    [cos(a),0,sin(a),0],
+    [0,1,0,0],
+    [-sin(a),0,cos(a),0],
+    [0,0,0,1]
+  ];
+
+function rotatez(a) = [
+    [cos(a),-sin(a),0,0],
+    [sin(a),cos(a),0,0],
+    [0,0,1,0],
+    [0,0,0,1]
+  ];
+
+function rotate(a,v) =
+  (v == undef)
+  ? rotatez(a[2])*rotatey(a[1])*rotatex(a[0])
+  : rotateanv(a,v/sqrt(v*v));
+
+function translate(v) = [
+    [1,0,0,v[0]],
+    [0,1,0,v[1]],
+    [0,0,1,v[2]],
+    [0,0,0,1]
+  ];
+
+function mirrorabc(a,b,c) = [
+    [1-2*a*a,-2*a*b,-2*a*c,0],
+    [-2*a*b,1-2*b*b,-2*b*c,0],
+    [-2*a*c,-2*b*c,1-2*c*c,0],
+    [0,0,0,1]
+  ];
+
+function mirrornv(nv) = mirrorabc(nv[0],nv[1],nv[2]);
+
+function mirror(v) = mirrornv(v/sqrt(v*v));
+
+
+// taken from https://github.com/openscad/openscad/issues/1040#issuecomment-233208606
+function det4x4(a) =
+a[0][0]*a[1][1]*a[2][2]*a[3][3] + a[0][0]*a[1][2]*a[2][3]*a[3][1] + a[0][0]*a[1][3]*a[2][1]*a[3][2]
+  + a[0][1]*a[1][0]*a[2][3]*a[3][2] + a[0][1]*a[1][2]*a[2][0]*a[3][3] + a[0][1]*a[1][3]*a[2][2]*a[3][0]
+  + a[0][2]*a[1][0]*a[2][1]*a[3][3] + a[0][2]*a[1][1]*a[2][3]*a[3][0] + a[0][2]*a[1][3]*a[2][0]*a[3][1]
+  + a[0][3]*a[1][0]*a[2][2]*a[3][1] + a[0][3]*a[1][1]*a[2][0]*a[3][2] + a[0][3]*a[1][2]*a[2][1]*a[3][0]
+  - a[0][0]*a[1][1]*a[2][3]*a[3][2] - a[0][0]*a[1][2]*a[2][1]*a[3][3] - a[0][0]*a[1][3]*a[2][2]*a[3][1]
+  - a[0][1]*a[1][0]*a[2][2]*a[3][3] - a[0][1]*a[1][2]*a[2][3]*a[3][0] - a[0][1]*a[1][3]*a[2][0]*a[3][2]
+  - a[0][2]*a[1][0]*a[2][3]*a[3][1] - a[0][2]*a[1][1]*a[2][0]*a[3][3] - a[0][2]*a[1][3]*a[2][1]*a[3][0]
+  - a[0][3]*a[1][0]*a[2][1]*a[3][2] - a[0][3]*a[1][1]*a[2][2]*a[3][0] - a[0][3]*a[1][2]*a[2][0]*a[3][1];
+
+function invb00(a) = a[1][1]*a[2][2]*a[3][3] + a[1][2]*a[2][3]*a[3][1] + a[1][3]*a[2][1]*a[3][2] - a[1][1]*a[2][3]*a[3][2] - a[1][2]*a[2][1]*a[3][3] - a[1][3]*a[2][2]*a[3][1];
+
+function invb01(a) = a[0][1]*a[2][3]*a[3][2] + a[0][2]*a[2][1]*a[3][3] + a[0][3]*a[2][2]*a[3][1] - a[0][1]*a[2][2]*a[3][3] - a[0][2]*a[2][3]*a[3][1] - a[0][3]*a[2][1]*a[3][2];
+
+function invb02(a) = a[0][1]*a[1][2]*a[3][3] + a[0][2]*a[1][3]*a[3][1] + a[0][3]*a[1][1]*a[3][2] - a[0][1]*a[1][3]*a[3][2] - a[0][2]*a[1][1]*a[3][3] - a[0][3]*a[1][2]*a[3][1];
+
+function invb03(a) = a[0][1]*a[1][3]*a[2][2] + a[0][2]*a[1][1]*a[2][3] + a[0][3]*a[1][2]*a[2][1] - a[0][1]*a[1][2]*a[2][3] - a[0][2]*a[1][3]*a[2][1] - a[0][3]*a[1][1]*a[2][2];
+
+function invb10(a) = a[1][0]*a[2][3]*a[3][2] + a[1][2]*a[2][0]*a[3][3] + a[1][3]*a[2][2]*a[3][0] - a[1][0]*a[2][2]*a[3][3] - a[1][2]*a[2][3]*a[3][0] - a[1][3]*a[2][0]*a[3][2];
+
+function invb11(a) = a[0][0]*a[2][2]*a[3][3] + a[0][2]*a[2][3]*a[3][0] + a[0][3]*a[2][0]*a[3][2] - a[0][0]*a[2][3]*a[3][2] - a[0][2]*a[2][0]*a[3][3] - a[0][3]*a[2][2]*a[3][0];
+
+function invb12(a) = a[0][0]*a[1][3]*a[3][2] + a[0][2]*a[1][0]*a[3][3] + a[0][3]*a[1][2]*a[3][0] - a[0][0]*a[1][2]*a[3][3] - a[0][2]*a[1][3]*a[3][0] - a[0][3]*a[1][0]*a[3][2];
+
+function invb13(a) = a[0][0]*a[1][2]*a[2][3] + a[0][2]*a[1][3]*a[2][0] + a[0][3]*a[1][0]*a[2][2] - a[0][0]*a[1][3]*a[2][2] - a[0][2]*a[1][0]*a[2][3] - a[0][3]*a[1][2]*a[2][0];
+
+function invb20(a) = a[1][0]*a[2][1]*a[3][3] + a[1][1]*a[2][3]*a[3][0] + a[1][3]*a[2][0]*a[3][1] - a[1][0]*a[2][3]*a[3][1] - a[1][1]*a[2][0]*a[3][3] - a[1][3]*a[2][1]*a[3][0];
+
+function invb21(a) = a[0][0]*a[2][3]*a[3][1] + a[0][1]*a[2][0]*a[3][3] + a[0][3]*a[2][1]*a[3][0] - a[0][0]*a[2][1]*a[3][3] - a[0][1]*a[2][3]*a[3][0] - a[0][3]*a[2][0]*a[3][1];
+
+function invb22(a) = a[0][0]*a[1][1]*a[3][3] + a[0][1]*a[1][3]*a[3][0] + a[0][3]*a[1][0]*a[3][1] - a[0][0]*a[1][3]*a[3][1] - a[0][1]*a[1][0]*a[3][3] - a[0][3]*a[1][1]*a[3][0];
+
+function invb23(a) = a[0][0]*a[1][3]*a[2][1] + a[0][1]*a[1][0]*a[2][3] + a[0][3]*a[1][1]*a[2][0] - a[0][0]*a[1][1]*a[2][3] - a[0][1]*a[1][3]*a[2][0] - a[0][3]*a[1][0]*a[2][1];
+
+function invb30(a) = a[1][0]*a[2][2]*a[3][1] + a[1][1]*a[2][0]*a[3][2] + a[1][2]*a[2][1]*a[3][0] - a[1][0]*a[2][1]*a[3][2] - a[1][1]*a[2][2]*a[3][0] - a[1][2]*a[2][0]*a[3][1];
+
+function invb31(a) = a[0][0]*a[2][1]*a[3][2] + a[0][1]*a[2][2]*a[3][0] + a[0][2]*a[2][0]*a[3][1] - a[0][0]*a[2][2]*a[3][1] - a[0][1]*a[2][0]*a[3][2] - a[0][2]*a[2][1]*a[3][0];
+
+function invb32(a) = a[0][0]*a[1][2]*a[3][1] + a[0][1]*a[1][0]*a[3][2] + a[0][2]*a[1][1]*a[3][0] - a[0][0]*a[1][1]*a[3][2] - a[0][1]*a[1][2]*a[3][0] - a[0][2]*a[1][0]*a[3][1];
+
+function invb33(a) = a[0][0]*a[1][1]*a[2][2] + a[0][1]*a[1][2]*a[2][0] + a[0][2]*a[1][0]*a[2][1] - a[0][0]*a[1][2]*a[2][1] - a[0][1]*a[1][0]*a[2][2] - a[0][2]*a[1][1]*a[2][0];
+
+function inv4x4(a)= (1/det4x4(a))*[
+    [invb00(a),invb01(a),invb02(a),invb03(a)],
+    [invb10(a),invb11(a),invb12(a),invb13(a)],
+    [invb20(a),invb21(a),invb22(a),invb23(a)],
+    [invb30(a),invb31(a),invb32(a),invb33(a)]];
+

rack/assembly/fullAssembly.scad

@@ -1,7 +0,0 @@
-include <../helper/math.scad>
-include <./config.scad>
-include <./mainRail.scad>
-include <./yBar.scad>
-include <./xBar.scad>
-
-// TODO

rack/assemblyGuide.scad

@@ -0,0 +1,78 @@
+include <../helper/math.scad>
+include <./config.scad>
+include <./mainRail.scad>
+include <./yBar.scad>
+include <./xBar.scad>
+
+
+attachXBarWithYBar();
+
+
+module attachXBarWithYBar() {
+  // assemble x-y bar trays
+
+  yBar();
+
+  xBarSpaceToYBarSpace =
+      yBarXBarConnectorTrans *
+      xBarConnectorToYBarConnectorTrans *
+      inv4x4(xBarYBarConnectorTrans);
+
+  yBarSpaceToXBarSpace =
+      xBarYBarConnectorTrans *
+      yBarConnectorToXBarConnectorTrans *
+      inv4x4(yBarXBarConnectorTrans);
+
+  multmatrix(
+     xBarSpaceToYBarSpace *
+     xBarMirrorOtherCornerTrans *
+     yBarSpaceToXBarSpace
+  )
+  yBar();
+
+  multmatrix(
+    translate(v=[0,0,20]) *
+     xBarSpaceToYBarSpace
+  )
+  xBar();
+
+
+  multmatrix(
+      translate(v=[0,0,20]) *
+      yBarMirrorOtherCornerTrans *
+      xBarSpaceToYBarSpace
+  )
+  xBar();
+}
+
+
+module screwXBarAndYBar() {
+  // screw to connect x and y bars
+}
+
+
+module attachSideConnectorModulesToYBars() {
+  // attach side connector modules to y bars
+}
+
+
+module insertDowelsIntoSideWall() {
+
+}
+
+module connectXYTraysWithMainRailAndSideWall() {
+
+}
+
+module screwMainRailAndYBar() {
+
+}
+
+
+module attachFeet() {
+
+}
+
+module attachTops() {
+
+}

rack/connector/basePlateYBarConnectors.scad

@@ -1,9 +1,13 @@
-include <../helper/common.scad>
+include <../../helper/screws.scad>
-include <../helper/slack.scad>
+include <../../helper/common.scad>
-include <../helper/halfspace.scad>
+include <../../helper/matrix.scad>
-include <../helper/screws.scad>
+include <../../helper/slack.scad>
-include <./config.scad>
+include <../../helper/dovetail.scad>
-include <./sharedVariables.scad>
+include <../../helper/halfspace.scad>
+
+include <../sharedVariables.scad>
+
+include <../config.scad>
 
 _mountX = 12;
 _mountY = 14;
@@ -27,14 +31,15 @@ _heatSetY = _mountY - _innerYFaceToScrew;
 basePlateScrewMountToYBarXZFace = _heatSetY + joinCornerDepth; // Distance to the nearest YBar XZ face
 basePlateScrewMountToYBarYZFace =  (yBarWidth+_heatSetX) - yBarBasePlateConnectorWidth;
 
-module yBarBasePlateMount_P() {
+module onYBarBasePlateConnectorPositive() {
+  translate(v=[0,0,yBarWallThickness])
   intersection() {
     cube(size = [_mountX, _mountY, _mountZ]);
     halfspace(vpos=[0, -1, -1], p=[0, _mountY-1, _mountZ-1]);
   }
 }
 
-module yBarBasePlateMount_N() {
+module onYBarBasePlateConnectorNegative() {
 
   translate(v=[_heatSetX, _heatSetY, m3HeatSetInsertSlotHeightSlacked + _baseConnRecession])
   mirror(v=[0,0,1])
@@ -48,14 +53,16 @@ module yBarBasePlateMount_N() {
     roundCutSlice(radius = _baseConnY/2 + radiusXYSlack);
   }
 
-}
 
-module roundCutSlice(radius, length=inf50) {
 
-  hull() {
+  module roundCutSlice(radius, length=inf50) {
-    cylinder(r = radius, h = eps);
 
-    translate(v = [length, -radius, 0])
+    hull() {
-    cube(size = [eps, radius*2, eps]);
+      cylinder(r = radius, h = eps);
+
+      translate(v = [length, -radius, 0])
+      cube(size = [eps, radius*2, eps]);
+    }
   }
+
 }

rack/connector/connectors.scad

@@ -1,46 +1,77 @@
 /*
   Connector factory
 */
-include <../helper/screws.scad>
+include <../../helper/screws.scad>
-include <../helper/slack.scad>
+include <../../helper/common.scad>
-include <../helper/dovetail.scad>
+include <../../helper/matrix.scad>
-include <../helper/halfspace.scad>
+include <../../helper/slack.scad>
-include <./config.scad>
+include <../../helper/dovetail.scad>
+include <../../helper/halfspace.scad>
+include <../config.scad>
+
+include <./xBarYBarConnectors.scad>
+include <./mainRailYBarConnectors.scad>
+include <./sideModuleYBarConnectors.scad>
+include <./stackYBarConnectors.scad>
+include <./basePlateYBarConnectors.scad>
 
 // WIP
-
 partList = ["yBar", "xBar", "mainRail", "xyPlate", "sideModule"];
 
+mirror(v=[1,0,0])
+*connectorDebug(on="xBar", to="yBar", trans=identity);
+
+*connectorDebug(on="yBar", to="xBar", trans=identity);
+
 // Default is to apply the positive first
-module applyConnector(on,to, trans) {
+module applyConnector(on, to, trans) {
 
-  //apply_pn() {
+  apply_pn() {
+    multmatrix(trans)
+    connectorPositive(on=on, to=to);
 
-  //}
+    multmatrix(trans)
+    connectorNegative(on=on, to=to);
+
+    children(0);
+  }
+}
+
+
+module connectorDebug(on, to, trans) {
+
+  color([0,1,0])
+  multmatrix(trans)
+  connectorPositive(on=on, to=to);
+
+  color([1,0,0])
+  multmatrix(trans)
+  connectorNegative(on=on, to=to);
+
+}
+
+
+module applyConnectorDebug(on,to,trans) {
+
+  echo("on: ", on, "-- to:", to);
+
+  apply_p() {
+    multmatrix(trans)
+    connectorDebug(on=on,to=to,trans=trans);
+
+    children(0);
+  }
 }
 
 module connectorPositive(on, to) {
 
   if (on == "yBar" && to == "xBar") {
     onYBarToXBarPositive();
+  } else if (on == "yBar" && to == "basePlate") {
+    onYBarBasePlateConnectorPositive();
+  } else if (on == "mainRail" && to == "yBar") {
+    onMainRailYBarConnectorPositive();
   }
-
-
-  module onYBarToXBarPositive() {
-    rotate(a=[0,0,-90])
-    dovetail(
-    topWidth = 15,
-    bottomWidth = 12,
-    height = 2,
-    length = yBarHeight,
-    headExtension = 1,
-    baseExtension = 2,
-    frontFaceLength = 2,
-    frontFaceScale = 0.95,
-    backFaceLength = 5,
-    backFaceScale = 1.2);
-  }
-
 }
 
 module connectorNegative(on, to) {
@@ -51,44 +82,14 @@ module connectorNegative(on, to) {
     onXBarToYBarNegative();
   } else if (on == "yBar" && to == "sideModule") {
     onYBarSideModuleNegative();
+  } else if (on == "yBar" && to == "mainRail") {
+    onYBarToMainRailNegative();
+  } else if (on == "yBar" && to == "stackConnector") {
+    onYBarStackConnectorNegative();
+  } else if (on == "yBar" && to == "basePlate") {
+    onYBarBasePlateConnectorNegative();
+  } else if (on == "mainRail" && to == "yBar") {
+    onMainRailYBarConnectorNegative();
   }
 
-
-  module onYBarToXBarNegative() {
-    y = 27;
-    z = 6;
-    translate(v = [-m3HeatSetInsertSlotHeightSlacked, y, z])
-    rotate(a = [0, 90, 0])
-    heatSetInsertSlot_N(rackFrameScrewType);
-
-  }
-
-  module onXBarToYBarNegative() {
-    y = 27;
-    z = 6;
-    slack = xySlack;
-
-    translate(v=[-0.5,14,0])
-    mirror(v=[1,0,0])
-    rotate(a=[0,0,-90])
-    dovetail(topWidth = 15+slack, bottomWidth = 12+slack, height = 2+slack, length = yBarHeight,
-             headExtension = 1, baseExtension = 2, frontFaceLength = 0.5, frontFaceScale = 1.05,
-             backFaceLength = 5, backFaceScale = 1.2);
-
-    // TODO clean this up
-    translate(v = [-6, y, z])
-    rotate(a = [0, -90, 0])
-    counterSunkHead_N(rackFrameScrewType, screwExtension=inf10, headExtension=inf10);
-  }
-
-  module onYBarSideModuleNegative() {
-    translate(v = [-xySlack/2, -xySlack/2, -sideWallConnLugDepression])
-    cube(size = [sideWallConnW+xySlack, sideWallConnD+xySlack, sideWallConnLugDepression]);
-
-    translate(v = [yBarScrewHoleToOuterYEdge, yBarScrewHoleToFrontXEdge, -(m3HeatSetInsertSlotHeightSlacked+sideWallConnLugDepression)])
-    heatSetInsertSlot_N(rackFrameScrewType);
-  }
-
-
 }
-

rack/connector/mainRailYBarConnectors.scad

@@ -0,0 +1,37 @@
+include <../../helper/screws.scad>
+include <../../helper/common.scad>
+include <../../helper/matrix.scad>
+include <../../helper/slack.scad>
+include <../../helper/dovetail.scad>
+include <../../helper/halfspace.scad>
+
+include <../sharedVariables.scad>
+
+include <../config.scad>
+
+module onYBarToMainRailNegative() {
+
+  slotSlack = xySlack;
+  slotZSlack = zSlack;
+
+  union() {
+    translate(v=[-slotZSlack/2, -slotSlack/2,0])
+    cube(size = [railTotalWidth+slotZSlack, railTotalDepth + slotSlack, railFootThickness]);
+
+    translate(v = [railSideMountThickness + 5, railFrontThickness + 4 , -m3HeatSetInsertSlotHeightSlacked])
+    heatSetInsertSlot_N(rackFrameScrewType);
+  }
+}
+
+
+module onMainRailYBarConnectorPositive() {
+
+  cube(size = [frontFaceWidth, sideSupportDepth+railFrontThickness, railFootThickness]);
+}
+
+
+module onMainRailYBarConnectorNegative() {
+
+  translate(v = [5+railSideMountThickness, 4+railFrontThickness, railFootThickness])
+  counterSunkHead_N(rackFrameScrewType, screwExtension=inf10, headExtension=inf10);
+}

rack/connector/sideModuleYBarConnectors.scad

@@ -0,0 +1,19 @@
+include <../../helper/screws.scad>
+include <../../helper/common.scad>
+include <../../helper/matrix.scad>
+include <../../helper/slack.scad>
+include <../../helper/dovetail.scad>
+include <../../helper/halfspace.scad>
+
+include <../sharedVariables.scad>
+
+include <../config.scad>
+
+module onYBarSideModuleNegative() {
+
+  translate(v = [-xySlack/2, -xySlack/2, -sideWallConnLugDepression])
+  cube(size = [sideWallConnW+xySlack, sideWallConnD+xySlack, sideWallConnLugDepression]);
+
+  translate(v = [yBarScrewHoleToOuterYEdge, yBarScrewHoleToFrontXEdge, -(m3HeatSetInsertSlotHeightSlacked+sideWallConnLugDepression)])
+  heatSetInsertSlot_N(rackFrameScrewType);
+}

rack/connector/stackYBarConnectors.scad

@@ -1,9 +1,13 @@
-include <../helper/math.scad>
+include <../../helper/screws.scad>
-include <../helper/common.scad>
+include <../../helper/common.scad>
-include <../helper/magnet.scad>
+include <../../helper/matrix.scad>
-include <../helper/screws.scad>
+include <../../helper/slack.scad>
+include <../../helper/dovetail.scad>
+include <../../helper/halfspace.scad>
 
-include <./config.scad>
+include <../sharedVariables.scad>
+
+include <../config.scad>
 
 connectorYEdgeToYBarYEdge = 5;
 connectorXEdgeToYBarXEdge = 5;
@@ -21,8 +25,6 @@ connectorRectSocketSlack = 0.2;
 
 connectorBottomToScrew = 6;
 
-*stackConnectorBottom();
-
 module stackConnectorBase(rectSlack, topSlack=0.0) {
 
   wSlacked = connectorRectWidth + rectSlack;
@@ -56,7 +58,7 @@ module stackConnectorBase(rectSlack, topSlack=0.0) {
 }
 
 
-module stackConnectorSocket_N() {
+module onYBarStackConnectorNegative() {
 
   wSlacked = connectorRectWidth + connectorRectSocketSlack;
   dSlacked = connectorRectDepth + connectorRectSocketSlack;
@@ -89,6 +91,7 @@ module stackConnectorSocket_N() {
   }
 }
 
+
 module stackConnectorPlug() {
 
   difference() {
@@ -122,4 +125,4 @@ module stackConnectorBottom() {
   stackConnectorPlug();
   translate(v=[0,0,-height])
   cube(size=[connectorRectWidth+connectorRectPlugSlack, connectorRectDepth+connectorRectPlugSlack, height]);
-}
+}

rack/connector/transformations.scad

@@ -0,0 +1,10 @@
+// Spatial transformations between various parts' local spaces
+include <./connectors.scad>
+
+
+function transform(from, to) =
+  (from == "yBar" && to == "xBar")
+  ? identity
+  : (from == "xBar" && to == "yBar")
+  ? identity
+  : identity;

rack/connector/xBarYBarConnectors.scad

@@ -0,0 +1,71 @@
+include <../../helper/screws.scad>
+include <../../helper/common.scad>
+include <../../helper/matrix.scad>
+include <../../helper/slack.scad>
+include <../../helper/dovetail.scad>
+include <../../helper/halfspace.scad>
+
+include <../sharedVariables.scad>
+
+include <../config.scad>
+
+// On xBar
+module onXBarToYBarNegative() {
+  y = 27;
+  z = 6;
+  slack = xBarYBarDovetailSlack;
+
+  translate(v=[-slack,14,0])
+  mirror(v=[1,0,0])
+  rotate(a=[0,0,-90])
+  dovetail(
+      topWidth = 15+slack,
+      bottomWidth = 12+slack,
+      height = 2+slack,
+      length = yBarHeight,
+      headExtension = 1,
+      baseExtension = 2,
+      frontFaceLength = 0.5,
+      frontFaceScale = 1.05,
+      backFaceLength = 5,
+      backFaceScale = 1.2
+  );
+
+  // TODO clean this up
+  translate(v = [-xBarSideThickness, y, z])
+  rotate(a = [0, -90, 0])
+  counterSunkHead_N(rackFrameScrewType, screwExtension=inf10, headExtension=inf10);
+}
+
+
+// On yBar
+module onYBarToXBarNegative() {
+  y = 27;
+  z = 6;
+  translate(v = [-m3HeatSetInsertSlotHeightSlacked, y, z])
+  rotate(a = [0, 90, 0])
+  heatSetInsertSlot_N(rackFrameScrewType);
+
+}
+
+module onYBarToXBarPositive() {
+
+  translate(v=[xBarYBarDovetailSlack, 14,0]) // TODO: variable for the 14
+  rotate(a=[0,0,-90])
+  dovetail(
+      topWidth = 15-xySlack, // figure out why we need this
+      bottomWidth = 12,
+      height = 2,
+      length = yBarHeight,
+      headExtension = 1,
+      baseExtension = 2,
+      frontFaceLength = 2,
+      frontFaceScale = 0.95,
+      backFaceLength = 5,
+      backFaceScale = 1.2
+  );
+}
+
+
+xBarConnectorToYBarConnectorTrans = mirror(v=[1,0,0]);
+yBarConnectorToXBarConnectorTrans = mirror(v=[-1,0,0]);

rack/mainRail.scad

@@ -4,81 +4,69 @@ include <../helper/slack.scad>
 include <../helper/math.scad>
 include <../helper/halfspace.scad>
 include <./sharedVariables.scad>
+include <../helper/matrix.scad>
 
-*mainRail();
+include <./connector/connectors.scad>
+
+//mainRail();
 
 module mainRail() {
 
-    b = 0.5; // bevel value
+  applyBevels()
-    intersection() {
+  applyConnector(on="mainRail", to="yBar", trans=yBarConnectorTrans)
-      mainRailSharp();
+  applyConnector(on="mainRail", to="yBar", trans=mirrorOtherSideTrans * yBarConnectorTrans)
-      halfspace(vpos=[1,1,0], p=[b,b,0]);
+  mainRailBase();
-      halfspace(vpos=[1,0,1], p=[b,0,b]);
-      halfspace(vpos=[1,0,-1], p=[b,0,railTotalHeight-b]);
-    }
 
-  module mainRailSharp() {
+  module mainRailBase() {
     union() {
       frontRailSegment();
 
       translate(v = [railSideMountThickness, railFrontThickness, 0])
       rotate(a = [0, 0, 90])
       sideSupportSegment();
+    }
 
-      translate(v = [0, railFrontThickness, 0]) {
+    module frontRailSegment() {
-        translate(v = [railSideMountThickness, 0, 0])
+      difference() {
-        railFeet();
+        cube(size = [frontFaceWidth, railFrontThickness, railTotalHeight]);
-        translate(v = [railSideMountThickness, 0, railTotalHeight])
+
-        mirror(v=[0,0,1])
+        for (i = [1:numRailScrews]) {
-        railFeet();
+          translate(v = [railScrewHoleToOuterEdge, railFrontThickness / 2, i * screwDiff + railFootThickness])
+          rotate(a = [90, 0, 0])
+          hexNutPocket_N(mainRailScrewType);
+        }
       }
     }
-  }
 
-  module frontRailSegment() {
+    module sideSupportSegment() {
-    difference() {
+      difference() {
-      cube(size = [frontFaceWidth, railFrontThickness, railTotalHeight]);
+        cube(size = [sideSupportDepth, railSideMountThickness, railTotalHeight]);
 
-      for (i = [1:numRailScrews]) {
+        for (i = [1:numRailScrews]) {
-        translate(v = [railScrewHoleToOuterEdge, railFrontThickness / 2, i * screwDiff + railFootThickness])
+          translate(v = [frontScrewSpacing, railFrontThickness/2, i*screwDiff+railFootThickness])
-        rotate(a = [90, 0, 0])
+          rotate(a = [90, 0, 0])
-        hexNutPocket_N(mainRailScrewType);
+          cylinder(r = screwRadiusSlacked(mainRailSideMountScrewType), h = inf10, $fn = 32);
+        }
       }
     }
+
   }
 
-  module sideSupportSegment() {
+  yBarConnectorTrans = identity;
-    difference() {
+
-      cube(size = [sideSupportDepth, railSideMountThickness, railTotalHeight]);
+  mirrorOtherSideTrans = translate(v = [0, 0, railTotalHeight]) * mirror(v=[0,0,1]);
-      
+
-      for (i = [1:numRailScrews]) {
+  module applyBevels() {
-        translate(v = [frontScrewSpacing, railFrontThickness/2, i*screwDiff+railFootThickness])
+    b = 0.5; // bevel value
-        rotate(a = [90, 0, 0])
+    apply_n() {
-        cylinder(r = screwRadiusSlacked(mainRailSideMountScrewType), h = inf10, $fn = 32);
+      union() {
+        halfspace(vpos = [-1, -1, 0], p = [b, b, 0]);
+        halfspace(vpos = [-1, 0, -1], p = [b, 0, b]);
+        halfspace(vpos = [-1, 0, 1], p = [b, 0, railTotalHeight-b]);
       }
+
+      children(0);
     }
   }
 
-  module railFeet() {
-    difference() {
-      cube(size = [frontFaceWidth - railSideMountThickness, sideSupportDepth, railFootThickness]);
-
-      translate(v = [5, 4, railFootThickness])
-      counterSunkHead_N(rackFrameScrewType, screwExtension=inf10, headExtension=inf10);
-    }
-  }
-}
-
-module railFeetSlot_N() {
-
-  slotSlack = xySlack;
-  slotZSlack = zSlack;
-
-  union() {
-    translate(v=[-slotZSlack/2, -slotSlack/2,0])
-    cube(size = [railTotalWidth+slotZSlack, railTotalDepth + slotSlack, railFootThickness]);
-
-    translate(v = [railSideMountThickness + 5, railFrontThickness + 4 , -m3HeatSetInsertSlotHeightSlacked])
-    heatSetInsertSlot_N(rackFrameScrewType);
-  }
 }

rack/xBar.scad

@@ -1,16 +1,17 @@
 include <../helper/cylindricalFilet.scad>
 include <../helper/screws.scad>
+include <../helper/matrix.scad>
+
 include <./config.scad>
-include <./xyBarConnector.scad>
 include <./sharedVariables.scad>
-// Temporary
+include <./connector/connectors.scad>
-include <./yBar.scad>
 
 *xBar();
 
 module xBar() {
 
-  applyYBarConnector()
+  applyConnector(on="xBar", to="yBar", trans=xBarMirrorOtherCornerTrans * xBarYBarConnectorTrans)
+  applyConnector(on="xBar", to="yBar", trans=xBarYBarConnectorTrans)
   xBarBase();
 
   module xBarBase() {
@@ -29,24 +30,8 @@ module xBar() {
     }
   }
 
-  module mirrorOtherCorner() {
+}
-    children(0);
 
-    translate(v = [0, xBarX, 0])
+xBarYBarConnectorTrans = rotate(a=[0,0,-90]);
-    mirror(v = [0, 1, 0]) {
-      children(0);
-    }
-  }
 
-  module applyYBarConnector() {
+xBarMirrorOtherCornerTrans = translate(v = [0, xBarX, 0]) * mirror(v = [0, 1, 0]);
-    apply_n() {
-
-      mirrorOtherCorner()
-      rotate(a=[0,0,-90])
-      yBarConnectorFromX_N();
-
-      children(0);
-    }
-  }
-
-}

rack/xyBarConnector.scad

@@ -1,57 +0,0 @@
-include <../helper/screws.scad>
-include <../helper/slack.scad>
-include <../helper/dovetail.scad>
-include <../helper/halfspace.scad>
-include <./config.scad>
-
-module xBarConnectorFromY_N() {
-    y = 27;
-    z = 6;
-    translate(v = [-m3HeatSetInsertSlotHeightSlacked, y, z])
-    rotate(a = [0, 90, 0])
-    heatSetInsertSlot_N(rackFrameScrewType);
-
-}
-
-module xBarConnectorFromY_P() {
-    rotate(a=[0,0,-90])
-    dovetail(
-    topWidth = 15,
-    bottomWidth = 12,
-    height = 2,
-    length = yBarHeight,
-    headExtension = 1,
-    baseExtension = 2,
-    frontFaceLength = 2,
-    frontFaceScale = 0.95,
-    backFaceLength = 5,
-    backFaceScale = 1.2);
-}
-
-
-module yBarConnectorFromX_N() {
-    y = 27;
-    z = 6;
-    slack = xBarYBarDovetailSlack;
-
-    translate(v=[-0.5,14,0])
-    mirror(v=[1,0,0])
-    rotate(a=[0,0,-90])
-    dovetail(
-    topWidth = 15+slack,
-    bottomWidth = 12+slack,
-    height = 2+slack,
-    length = yBarHeight,
-    headExtension = 1,
-    baseExtension = 2,
-    frontFaceLength = 0.5,
-    frontFaceScale = 1.05,
-    backFaceLength = 5,
-    backFaceScale = 1.2);
-
-    // TODO clean this up
-    translate(v = [-xBarSideThickness, y, z])
-    rotate(a = [0, -90, 0])
-    counterSunkHead_N(rackFrameScrewType, screwExtension=inf10, headExtension=inf10);
-}
-

rack/yBar.scad

@@ -1,4 +1,5 @@
 include <../helper/math.scad>
+include <../helper/matrix.scad>
 include <../helper/sphericalFilet.scad>
 include <../helper/cylindricalFilet.scad>
 include <../helper/screws.scad>
@@ -6,10 +7,9 @@ include <../helper/magnet.scad>
 include <./config.scad>
 include <./mainRail.scad>
 
+include <./connector/connectors.scad>
+
 // Connectors
-include <./stackConnector.scad>
-include <./xyBarConnector.scad>
-include <./yBarBasePlateConnector.scad>
 include <./side/yBarSideWallConnector.scad>
 include <./sharedVariables.scad>
 
@@ -17,11 +17,11 @@ include <./sharedVariables.scad>
 
 module yBar() {
 
-  applyBasePlateConnector()
+  applyOnYBarBothCorners(to="basePlate", trans=yBarBasePlateConnectorTrans)
-  applyStackConnector()
+  applyOnYBarBothCorners(to="stackConnector", trans=yBarStackConnectorTrans)
-  applySideWallConnector()
+  applyOnYBarBothCorners(to="sideModule", trans=yBarSideModuleConnectorTrans)
-  applyRailConnector()
+  applyOnYBarBothCorners(to="mainRail", trans=yBarMainRailConnectorTrans)
-  applyXBarConnector()
+  applyOnYBarBothCorners(to="xBar", trans=yBarXBarConnectorTrans)
   yBarBase();
 
   module yBarBase() {
@@ -37,78 +37,28 @@ module yBar() {
     }
   }
 
-  module applyBasePlateConnector() {
+  // Helper module to apply connectors to both corners
-    apply_pn() {
+  module applyOnYBarBothCorners(to, trans) {
-      mirrorOtherCorner() {
+    applyConnector(on="yBar", to=to, trans=trans)
-        translate(v = [yBarWidth-yBarBasePlateConnectorWidth, joinCornerDepth, yBarWallThickness])
+    applyConnector(on="yBar", to=to, trans=yBarMirrorOtherCornerTrans * trans)
-        yBarBasePlateMount_P();
-      }
-
-      mirrorOtherCorner() {
-        translate(v = [yBarWidth-yBarBasePlateConnectorWidth, joinCornerDepth, 0])
-        yBarBasePlateMount_N();
-      }
-
-      children(0);
-    }
-  }
-
-  module applyStackConnector() {
-    apply_n() {
-      mirrorOtherCorner()
-      translate(v = [connectorXEdgeToYBarXEdge, connectorYEdgeToYBarYEdge, 0])
-      stackConnectorSocket_N();
-
-      children(0);
-    }
-  }
-
-  module applySideWallConnector() {
-    apply_n() {
-      mirrorOtherCorner()
-      translate(v = [
-          yBarWidth-(railTotalWidth+railSlotToInnerYEdge+railSlotToSideWallSlot+sideWallConnectorSlotWidth),
-          sideWallSlotToXZ,
-          yBarHeight
-        ])
-      yBarSideWallConnector_N();
-
-      children(0);
-    }
-  }
-
-  module applyRailConnector() {
-
-    apply_n() {
-      mirrorOtherCorner()
-      translate(v = [yBarWidth-(railTotalWidth+railSlotToInnerYEdge), railSlotToXZ, yBarHeight-railFootThickness])
-      railFeetSlot_N();
-
-      children(0);
-    }
-  }
-
-  module applyXBarConnector() {
-    apply_pn() {
-
-      mirrorOtherCorner()
-      translate(v=[yBarWidth + 0.5,14,0])
-      xBarConnectorFromY_P();
-
-      mirrorOtherCorner()
-      translate(v = [yBarWidth+eps, 0, 0])
-      xBarConnectorFromY_N();
-
-      children(0);
-    }
-  }
-
-  module mirrorOtherCorner() {
-    children(0);
-
-    translate(v = [0, yBarDepth, 0])
-    mirror(v = [0, 1, 0])
     children(0);
   }
-
 }
+
+yBarMirrorOtherCornerTrans = translate(v = [0, yBarDepth, 0]) * mirror(v = [0, 1, 0]);
+
+yBarBasePlateConnectorTrans = translate(v = [yBarWidth-yBarBasePlateConnectorWidth, joinCornerDepth, 0]);
+
+yBarStackConnectorTrans = translate(v = [connectorXEdgeToYBarXEdge, connectorYEdgeToYBarYEdge, 0]);
+
+yBarSideModuleConnectorTrans = translate(v = [
+    yBarWidth-(railTotalWidth+railSlotToInnerYEdge+railSlotToSideWallSlot+sideWallConnectorSlotWidth),
+  sideWallSlotToXZ,
+  yBarHeight]);
+
+yBarMainRailConnectorTrans = translate(v = [
+    yBarWidth-(railTotalWidth+railSlotToInnerYEdge),
+  railSlotToXZ,
+    yBarHeight-railFootThickness]);
+
+yBarXBarConnectorTrans = translate(v = [yBarWidth+eps, 0, 0]);