diff --git a/helper/halfspace.scad b/helper/halfspace.scad
index 31d1ba2..8b5a57d 100644
--- a/helper/halfspace.scad
+++ b/helper/halfspace.scad
@@ -4,8 +4,17 @@ include <./math.scad>
 include <./common.scad>
 
 module halfspace(vpos, p) {
-    translate(p)
-    align(a=[0,0,-1], b=vpos)
-    translate(v=[0,0,-inf/2])
+    // TODO: clean up
+    ref = [0,0,-1];
+
+    if (cross(ref, vpos) == [0,0,0]) {
+        translate(p)
+        translate(v=[0,0, (ref*vpos) * -inf/2])
         cube(size=[inf, inf, inf], center=true);
+    } else {
+        translate(p)
+        align(a=ref, b = vpos)
+        translate(v = [0, 0, -inf/2])
+        cube(size = [inf, inf, inf], center = true);
+    }
 }
\ No newline at end of file
diff --git a/helper/math.scad b/helper/math.scad
index 2b9c8b3..57feaee 100644
--- a/helper/math.scad
+++ b/helper/math.scad
@@ -18,11 +18,11 @@ module align(a,b) {
     echo("b", b);
     rot_axis = cross(a,b);
 
-    if (rot_axis == 0) {
+    if (rot_axis == [0,0,0]) {
         error("Can't align - provided vectors are parallel");
     }
 
-    echo("rot_axis", rot_axis);
+    //echo("rot_axis", rot_axis);
 
     angle = acos(a*b/(norm(a)*norm(b)));
     echo("angle", angle)
diff --git a/helper/screws.scad b/helper/screws.scad
index c91b015..5165374 100644
--- a/helper/screws.scad
+++ b/helper/screws.scad
@@ -64,14 +64,16 @@ function screwRadiusSlacked(screwType) =
 module counterSunkHead_N(screwType, screwExtension=0, headExtension=0) {
 
   if (screwType == "m3") {
-    cylinder(r1=m3RadiusSlacked, r2=m3CounterSunkHeadRadius, h=m3CounterSunkHeadLength);
+    translate(v=[0,0,-m3CounterSunkHeadLength])
+    union() {
+      cylinder(r1 = m3RadiusSlacked, r2 = m3CounterSunkHeadRadius, h = m3CounterSunkHeadLength);
 
-    translate(v=[0,0,-screwExtension])
-    cylinder(r=m3RadiusSlacked, h=screwExtension);
-
-    translate(v=[0,0,m3CounterSunkHeadLength])
-    cylinder(r=m3CounterSunkHeadRadius, h=headExtension);
+      translate(v = [0, 0, -screwExtension])
+      cylinder(r = m3RadiusSlacked, h = screwExtension);
 
+      translate(v = [0, 0, m3CounterSunkHeadLength])
+      cylinder(r = m3CounterSunkHeadRadius, h = headExtension);
+    }
   } else {
     error("Unsupported screw type");
   }
diff --git a/rack/derivedConfig.scad b/rack/derivedConfig.scad
deleted file mode 100644
index e01a531..0000000
--- a/rack/derivedConfig.scad
+++ /dev/null
@@ -1,6 +0,0 @@
-// Config file for derived variables. These variables are calculated from profile variables and are used by
-// multiple components.
-
-// TODO
-include <./config.scad>
-
diff --git a/rack/mainRail.scad b/rack/mainRail.scad
index caed1c2..99fb96d 100644
--- a/rack/mainRail.scad
+++ b/rack/mainRail.scad
@@ -14,7 +14,7 @@ railSideMountThickness = 2.5;
 
 // Distance between the middle of a screw mount and the rail's vertical edges
 railScrewHoleToInnerEdge = 5;
-railScrewHoleToOuterEdge = 9;
+railScrewHoleToOuterEdge = 7;
 
 // Distance between the midpoint of the rail screw holes.
 rackMountScrewWidth = maxUnitWidth + 2 * railScrewHoleToInnerEdge;
diff --git a/rack/sideWall.scad b/rack/sideWall.scad
new file mode 100644
index 0000000..1ccb777
--- /dev/null
+++ b/rack/sideWall.scad
@@ -0,0 +1,56 @@
+include <../helper/math.scad>
+include <../helper/halfspace.scad>
+include <../misc/magnet.scad>
+include <./config.scad>
+include <./yBar.scad>
+include <./sideWallConnector.scad>
+
+
+sideWallZ = 110;
+sideWallY = 110;
+sideWallX = 12;
+sideWallThickness = 2.5;
+
+module sideWall() {
+
+  sideWallBase();
+
+
+  module sideWallBase() {
+
+    module roundThingHelper(x,y,z,r) {
+      translate(v=[r, r, 0])
+      minkowski() {
+        cube(size = [x-r, y - 2*r, z]);
+        sphere(r = r);
+      }
+    }
+
+    intersection() {
+      difference() {
+        roundThingHelper(sideWallX,sideWallY,sideWallZ, baseRoundness);
+
+        translate(v=[sideWallThickness, sideWallThickness,0])
+        roundThingHelper(sideWallX,sideWallY - 2*sideWallThickness,sideWallZ, baseRoundness);
+      }
+      halfspace(vpos=[-1,0,0], p=[sideWallX,0,0]);
+      halfspace(vpos=[0,0,-1], p=[0,0,sideWallZ]);
+      halfspace(vpos=[0,0,1], p=[0,0,0]);
+    }
+  }
+
+
+  module applyHingeConnector() {
+
+  }
+
+  module applyMagnetConnector() {
+
+  }
+
+  module applyEpicVentilation() {
+
+  }
+}
+
+*sideWall();
\ No newline at end of file
diff --git a/rack/sideWallConnector.scad b/rack/sideWallConnector.scad
index 55c7f77..788d650 100644
--- a/rack/sideWallConnector.scad
+++ b/rack/sideWallConnector.scad
@@ -2,19 +2,57 @@ include <./config.scad>
 include <../helper/screws.scad>
 
 sideWallConnectorSlotWidth = 7;
+
+sideWallConnW = 7;
+sideWallConnD = 20;
+sideWallConnLugDepression = 2;
+
+yBarScrewHoleToOuterYEdge = 3.5;
+yBarScrewHoleToFrontXEdge = 16;
+
 module sideWallConnector_N() {
+    translate(v = [0, 0, -sideWallConnLugDepression])
+    cube(size = [sideWallConnW, sideWallConnD, sideWallConnLugDepression]);
 
-    lugW = 7;
-    lugD = 20;
-    lugH = 2;
+    translate(v = [yBarScrewHoleToOuterYEdge, yBarScrewHoleToFrontXEdge, -(m3HeatSetInsertSlotHeightSlacked+sideWallConnLugDepression)])
+    heatSetInsertSlot_N(rackFrameScrewType);
+}
 
-    insertDw = lugW/2;
+module sideWallConnectorMagnet() {
+    difference() {
+        cube(size = [sideWallConnW, sideWallConnD, sideWallConnLugDepression]);
 
-    insertDd = lugD-4;
+        translate(v = [yBarScrewHoleToOuterYEdge, yBarScrewHoleToFrontXEdge, sideWallConnLugDepression])
+        counterSunkHead_N(rackFrameScrewType, headExtension=eps,screwExtension=inf10);
+    }
 
-    translate(v = [0, 0, -lugH])
-        cube(size = [lugW, lugD, lugH]);
+    translate(v = [0, 5, 6])
+    rotate(a = [0, 90, 0])
+    difference() {
 
-    translate(v = [insertDw, insertDd, -(m3HeatSetInsertSlotHeightSlacked+lugH)])
-        heatSetInsertSlot_N(rackFrameScrewType);
-}
\ No newline at end of file
+        hull() {
+            cylinder(r = magnetRSlacked + 1, h = magnetHSlacked+1);
+            translate(v=[5,0,(magnetHSlacked+1)/2])
+            cube(size=[eps, 2*(magnetRSlacked+1),magnetHSlacked+1], center=true);
+        }
+        translate(v=[0,0,1])
+        cylinder(r = magnetRSlacked, h = magnetHSlacked);
+    }
+
+    //cylinder(r = magnetRSlacked, h = magnetHSlacked);
+}
+
+module sideWallConnectorHinge() {
+
+}
+
+module sideWallConnectorHinge_N() {
+
+}
+
+
+*sideWallConnector_N();
+
+sideWallConnectorMagnet();
+
+//counterSunkHead_N(rackFrameScrewType,screwExtension=10);
diff --git a/rack/yBar.scad b/rack/yBar.scad
index 8222258..1a7e56b 100644
--- a/rack/yBar.scad
+++ b/rack/yBar.scad
@@ -15,7 +15,7 @@ include <./yBarBasePlateConnector.scad>
 
 railSlotToInnerYEdge = 2;
 railSlotToXZ = 3;
-railSlotToSideWallSlot = 0;
+railSlotToSideWallSlot = 2;
 sideWallSlotToOuterYEdge = 3;
 sideWallSlotToXZ = 3;