diff --git a/README.md b/README.md
index 6e8c395..fbb5695 100644
--- a/README.md
+++ b/README.md
@@ -67,4 +67,4 @@ For generating a specific part:
 `python3 rbuild.py -b yBar --nightly -c micro -t custom`
 
 Generated stls are put into the `stl/` directories. The actual variable values for different profiles can be found in  
-[rack/profiles.scad](rack/profiles.scad).
\ No newline at end of file
+[rack/profiles.scad](config/profiles.scad).
\ No newline at end of file
diff --git a/config/common.scad b/config/common.scad
new file mode 100644
index 0000000..a83ed0e
--- /dev/null
+++ b/config/common.scad
@@ -0,0 +1,7 @@
+// Config aggregator
+
+include <./dowel.scad>
+include <./magnet.scad>
+include <./slack.scad>
+include <./printing.scad>
+include <./rackFrame.scad>
\ No newline at end of file
diff --git a/helper/dowel.scad b/config/dowel.scad
similarity index 100%
rename from helper/dowel.scad
rename to config/dowel.scad
diff --git a/helper/magnet.scad b/config/magnet.scad
similarity index 100%
rename from helper/magnet.scad
rename to config/magnet.scad
diff --git a/config/printing.scad b/config/printing.scad
new file mode 100644
index 0000000..9f44214
--- /dev/null
+++ b/config/printing.scad
@@ -0,0 +1,2 @@
+
+defaultLayerHeight = 0.3;
\ No newline at end of file
diff --git a/rack/config.scad b/config/rackFrame.scad
similarity index 52%
rename from rack/config.scad
rename to config/rackFrame.scad
index 92b9296..a69a4fa 100644
--- a/rack/config.scad
+++ b/config/rackFrame.scad
@@ -1,22 +1,54 @@
-/*
-   case-files v2
-   This file contains parameters used for declaring/generating a customized rack frame.
 
-   - All dimensions are in millimetres (mm) unless stated otherwise.
-   - "_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.
-*/
-include <./profiles.scad>
-
-// Manually set this variable to toggle profiles
+// Manually set this variable to toggle rack profile
 profileName = "micro";
 
-profile = getProfile(profileName);
 
-defaultLayerHeight = 0.3;
+_profileConfigs = [
+    ["default", [
+      ["maxUnitWidth", 180],
+      ["maxUnitDepth", 180],
+      ["numRailScrews", 18],
+      ["screwDiff", 10],
+      ["mainRailScrewType", "m4"],
+      ["mainRailSideMountScrewType", "m4"],
+      ["rackFrameScrewType", "m3"],
+      ["baseRoundness", 5],
+    ]],
+    ["nano", [
+      ["maxUnitWidth", 105],
+      ["maxUnitDepth", 105],
+      ["numRailScrews", 10]
+    ]],
+    ["micro", [
+      ["maxUnitWidth", 180],
+      ["maxUnitDepth", 180],
+      ["numRailScrews", 18]
+    ]],
+    ["mini", [
+      ["maxUnitWidth", 205],
+      ["maxUnitDepth", 205],
+      ["numRailScrews", 20]
+    ]]
+  ];
+
+function _getConfigValueRaw(profile, varName) = profile[search([varName], profile)[0]][1];
+function _getProfileRaw(profileName) = _profileConfigs[search([profileName], _profileConfigs)[0]][1];
+
+function _getConfigValueOrThrowError(val) = val == undef? assert(false, "blah") 0: val;
+function _getConfigValueOrDefault(val, default) = val == undef? default: val;
+
+function getConfigValue(profile, varName) =
+_getConfigValueOrDefault(
+_getConfigValueRaw(profile, varName),
+_getConfigValueOrThrowError(_getConfigValueRaw(getProfile("default"), varName))
+);
+
+function getProfile(profileName) = _getConfigValueOrThrowError(_getProfileRaw(profileName));
 
 function getConfig(name) = getConfigValue(profile, name);
 
+profile = getProfile(profileName);
+
 // Maximum width for rack-mount units. Change this according your max expected enclosure width.
 // Changing this will directly affect the required build volume.
 maxUnitWidth = getConfig("maxUnitWidth");
diff --git a/helper/slack.scad b/config/slack.scad
similarity index 99%
rename from helper/slack.scad
rename to config/slack.scad
index e229516..39372a3 100644
--- a/helper/slack.scad
+++ b/config/slack.scad
@@ -23,6 +23,5 @@ overhangSlack = 0.4;
 
 supportedOverhangSlack = 0.4;
 
-
 // special slack cases, change if neccessary
 xBarYBarDovetailSlack = xySlack;
\ No newline at end of file
diff --git a/helper/apply.scad b/helper/apply.scad
new file mode 100644
index 0000000..943069d
--- /dev/null
+++ b/helper/apply.scad
@@ -0,0 +1,35 @@
+// Modules for apply pattern
+
+module apply_p() {
+  union() {
+    children(0);
+    children(1);
+  }
+}
+
+module apply_n() {
+  difference() {
+    children(1);
+    children(0);
+  }
+}
+
+module apply_pn() {
+  difference() {
+    union() {
+      children(0);
+      children(2);
+    }
+    children(1);
+  }
+}
+
+module apply_np() {
+  difference() {
+    union() {
+      children(1);
+      children(2);
+    }
+    children(0);
+  }
+}
\ No newline at end of file
diff --git a/helper/common.scad b/helper/common.scad
index 81298f8..0879b14 100644
--- a/helper/common.scad
+++ b/helper/common.scad
@@ -1,47 +1,10 @@
+// Helper aggregator
 
-/* Some commonly used variables plus functions
-*/
-
-$fn=64;
-// TODO move these to math
-eps=0.0001;
-
-inf10 = 10;
-inf50 = 50;
-inf1000 = 1000;
-inf = inf1000;
-
-
-module apply_p() {
-  union() {
-    children(0);
-    children(1);
-  }
-}
-
-module apply_n() {
-  difference() {
-    children(1);
-    children(0);
-  }
-}
-
-module apply_pn() {
-  difference() {
-    union() {
-      children(0);
-      children(2);
-    }
-    children(1);
-  }
-}
-
-module apply_np() {
-  difference() {
-    union() {
-      children(1);
-      children(2);
-    }
-    children(0);
-  }
-}
\ No newline at end of file
+include <./apply.scad>
+include <./dovetail.scad>
+include <./filet.scad>
+include <./keystone.scad>
+include <./math.scad>
+include <./matrix.scad>
+include <./screws.scad>
+include <./sine.scad>
diff --git a/helper/cylindricalFilet.scad b/helper/cylindricalFilet.scad
deleted file mode 100644
index 7a04feb..0000000
--- a/helper/cylindricalFilet.scad
+++ /dev/null
@@ -1,16 +0,0 @@
-
-module cylindricalFiletEdge(width, depth, height, roundness) {
-  rd = roundness;
-
-  intersection() {
-    minkowski() {
-      rotate(a = [90, 0, 0])
-      cylinder(r = rd, h = eps);
-
-      translate(v = [rd, 0, rd])
-      cube(size = [width, depth, height]);
-    }
-
-    cube(size = [width, depth, height]);
-  }
-}
\ No newline at end of file
diff --git a/helper/dovetail.scad b/helper/dovetail.scad
index d3ff8de..1d08f3a 100644
--- a/helper/dovetail.scad
+++ b/helper/dovetail.scad
@@ -1,4 +1,4 @@
-include <./common.scad>
+include <./math.scad>
 
 // centered on z axis
 module dovetail(
diff --git a/helper/filet.scad b/helper/filet.scad
index efb1920..350181f 100644
--- a/helper/filet.scad
+++ b/helper/filet.scad
@@ -1,12 +1,40 @@
-include <./halfspace.scad>
 include <./math.scad>
 
-// Some modules for simple subtractive filets
+module sphericalFiletEdge(width, depth, height, roundness) {
+  rd = roundness;
+
+  intersection() {
+    minkowski() {
+      sphere(r = rd);
+
+      translate(v = [rd, rd, rd])
+      cube(size = [width*2, depth - 2*rd, height*2]);
+    }
+
+    cube(size = [width, depth, height]);
+  }
+}
+
+module cylindricalFiletEdge(width, depth, height, roundness) {
+  rd = roundness;
+
+  intersection() {
+    minkowski() {
+      rotate(a = [90, 0, 0])
+      cylinder(r = rd, h = eps);
+
+      translate(v = [rd, 0, rd])
+      cube(size = [width, depth, height]);
+    }
+
+    cube(size = [width, depth, height]);
+  }
+}
 
 module cylindricalFiletNegative(p0, p1, n, r) {
   l = norm(p1-p0);
 
-  align_to(p0=p0, p1=p1, p2=p0-n)
+  alignTo(p0=p0, p1=p1, p2=p0-n)
   rotate(a=[45,0,0])
   rotate(a=[0,90,0])
   zFiletNegative(length = l, r = r);
diff --git a/helper/halfspace.scad b/helper/halfspace.scad
deleted file mode 100644
index 90e10a1..0000000
--- a/helper/halfspace.scad
+++ /dev/null
@@ -1,26 +0,0 @@
-include <./common.scad>
-
-module halfspace(vpos, p) {
-
-    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)
-        alignPlanar(a=ref, b = vpos)
-        translate(v = [0, 0, -inf/2])
-        cube(size = [inf, inf, inf], center = true);
-    }
-
-}
-
-module alignPlanar(a,b) {
-    rot_axis = cross(a,b);
-    angle = acos(a*b/(norm(a)*norm(b)));
-
-    rotate(v=rot_axis, a=angle)
-    children(0);
-}
\ No newline at end of file
diff --git a/helper/math.scad b/helper/math.scad
index 402682c..62235ec 100644
--- a/helper/math.scad
+++ b/helper/math.scad
@@ -1,11 +1,20 @@
-// TODO remove/rename this file
-/* Example usage:
-for (i=mirror4XY(midpoint=[0,0,0], offsetX=90, offsetY=90)) {
-    translate(v=i)
-        something();
-}
-*/
+// Some misc math-y utils
 
+$fn=64;
+eps=0.0001;
+inf10 = 10;
+inf50 = 50;
+inf1000 = 1000;
+inf = inf1000;
+
+function unit(v) = v/norm(v);
+
+function lerp(a, b, t) = (b * t + a * (1 - t));
+
+/* Example usage:
+for (i=mirror4XY(midpoint=[0,0,0], offsetX=90, offsetY=90))
+   { translate(v=i) something(); }
+*/
 module mirror4XY(p, dx, dy) {
 
     px = p[0];
@@ -24,20 +33,18 @@ module mirror4XY(p, dx, dy) {
     children(0);
 }
 
-// Generate a 4x4 matrix that causes a change of basis
-// such that the origin is at point p0, the x axis is aligned
-// from p0 to p1 and point p2 is in the first quadrant.
-// Copied and pasted from https://trmm.net/Basis/
-module align_to(p0,p1,p2) {
+/* Generate a 4x4 matrix that causes a change of basis
+such that the origin is at point p0, the x axis is aligned
+from p0 to p1 and point p2 is in the first quadrant.
+Copied and pasted from https://trmm.net/Basis/
+*/
+module alignTo(p0,p1,p2) {
 
     x = unit(p1-p0);
     yp = unit(p2-p0);
     z = unit(cross(x,yp));
     y = unit(cross(z,x));
 
-    echo(p0,p1,p2);
-    echo(x,y,z);
-
     multmatrix([
             [x[0], y[0], z[0], p0[0]],
             [x[1], y[1], z[1], p0[1]],
@@ -47,5 +54,27 @@ module align_to(p0,p1,p2) {
     children();
 }
 
-function unit(v) = v/norm(v);
-function lerp(a, b, t) = (b * t + a * (1 - t));
+module halfspace(vpos, p) {
+
+    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)
+        alignPlanar(a=ref, b = vpos)
+        translate(v = [0, 0, -inf/2])
+        cube(size = [inf, inf, inf], center = true);
+    }
+
+}
+
+module alignPlanar(a,b) {
+    rot_axis = cross(a,b);
+    angle = acos(a*b/(norm(a)*norm(b)));
+
+    rotate(v=rot_axis, a=angle)
+    children(0);
+}
\ No newline at end of file
diff --git a/helper/screws.scad b/helper/screws.scad
index 0ec2808..6322050 100644
--- a/helper/screws.scad
+++ b/helper/screws.scad
@@ -1,7 +1,6 @@
 /* Some common screw dimensions and helper functions/modules */
 
 include <./math.scad>
-include <./common.scad>
 
 /********************************************************************************/
 // M3 dimensions
diff --git a/helper/sinusoid.scad b/helper/sine.scad
similarity index 95%
rename from helper/sinusoid.scad
rename to helper/sine.scad
index 431a935..b964846 100644
--- a/helper/sinusoid.scad
+++ b/helper/sine.scad
@@ -57,6 +57,3 @@ module sineWaveHull(length, resolution, amplitudeFunction, period, shift, hullDi
         }
     }
 }
-
-
-//sineWaveHull(length, resolution, amplitudeFunction, period, shift, 10);
\ No newline at end of file
diff --git a/helper/sphericalFilet.scad b/helper/sphericalFilet.scad
deleted file mode 100644
index da78faf..0000000
--- a/helper/sphericalFilet.scad
+++ /dev/null
@@ -1,15 +0,0 @@
-
-module sphericalFiletEdge(width, depth, height, roundness) {
-  rd = roundness;
-
-  intersection() {
-    minkowski() {
-      sphere(r = rd);
-
-      translate(v = [rd, rd, rd])
-      cube(size = [width*2, depth - 2*rd, height*2]);
-    }
-
-    cube(size = [width, depth, height]);
-  }
-}
diff --git a/helper/voronoi.scad b/helper/voronoi.scad
deleted file mode 100644
index 011f8eb..0000000
--- a/helper/voronoi.scad
+++ /dev/null
@@ -1,95 +0,0 @@
-
-// (c)2013 Felipe Sanches <juca@members.fsf.org>
-// licensed under the terms of the GNU GPL version 3 (or later)
-
-function normalize(v) = v / (sqrt(v[0] * v[0] + v[1] * v[1]));
-
-//
-// The voronoi() function generates a 2D surface, which can be provided to
-// a) linear_extrude() to produce a 3D object
-// b) intersection() to restrict it to a a specified shape -- see voronoi_polygon.scad
-//
-// Parameters:
-//   points (required) ... nuclei coordinates (array of [x, y] pairs)
-//   L                 ... the radius of the "world" (the pattern is built within this circle)
-//   thickness         ... the thickness of the lines between cells
-//   round             ... the radius applied to corners (fillet in CAD terms)
-//   nuclei (bool)     ... show nuclei sites
-//
-// These parameters need to be kept more or less in proportion to each other, and to the distance
-// apart of points in the point_set. If one or the other parameter is increased or decreased too
-// much, you'll get no output.
-//
-module voronoi(points, L = 200, thickness = 1, round = 6, nuclei = true) {
-	for (p = points) {
-		difference() {
-			minkowski() {
-				intersection_for(p1 = points){
-					if (p != p1) {
-						angle = 90 + atan2(p[1] - p1[1], p[0] - p1[0]);
-
-						translate((p + p1) / 2 - normalize(p1 - p) * (thickness + round))
-						rotate([0, 0, angle])
-						translate([-L, -L])
-						square([2 * L, L]);
-					}
-				}
-				circle(r = round, $fn = 20);
-			}
-			if (nuclei)
-				translate(p) circle(r = 1, $fn = 20);
-		}
-	}
-}
-
-//
-// The random_voronoi() function is the helper wrapper over the voronoi() core.
-// It generates random nuclei site coordinates into the square area,
-// passing other arguments to voronoi() unchanged.
-//
-// Parameters:
-//   n                 ... number of nuclei sites to be generated
-//   nuclei (bool)     ... show nuclei sites
-//   L                 ... the radius of the "world" (the pattern is built within this circle)
-//   thickness         ... the thickness of the lines between cells
-//   round             ... the radius applied to corners (fillet in CAD terms)
-//   min               ... minimum x and y coordinate for nuclei generation
-//   max               ... maximum x and y coordinate for nuclei generation
-//   seed              ... seed for the random generator (random if undefined)
-//   center (bool)     ... move resulting pattern to [0, 0] if true
-//
-module random_voronoi(n = 20, nuclei = true, L = 200, thickness = 1, round = 6, min = 0, max = 100, seed = undef, center = false) {
-	seed = seed == undef ? rands(0, 100, 1)[0] : seed;
-	echo("Seed", seed);
-
-	// Generate points.
-	x = rands(min, max, n, seed);
-	y = rands(min, max, n, seed + 1);
-	points = [ for (i = [0 : n - 1]) [x[i], y[i]] ];
-        
-	// Center Voronoi.
-	offset_x = center ? -(max(x) - min(x)) / 2 : 0;
-	offset_y = center ? -(max(y) - min(y)) / 2 : 0;
-	translate([offset_x, offset_y])
-    
-	voronoi(points, L = L, thickness = thickness, round = round, nuclei = nuclei);
-}
-
-// example with an explicit list of points:
-point_set = [
-	[0, 0], [30, 0], [20, 10], [50, 20], [15, 30], [85, 30], [35, 30], [12, 60],
-	[45, 50], [80, 80], [20, -40], [-20, 20], [-15, 10], [-15, 50]
-];
-//voronoi(points = point_set, round = 4, nuclei = true);
-
-module voronoi3u_N(h) {
-  intersection() {
-    translate(v=[10,5,0])
-      cube(size=[160, 10, h]);
-    translate(v=[20,-52,0])
-      scale(v=[0.40,0.44,10])
-      linear_extrude(height=10)
-      random_voronoi(n = 128, round = 10, min = 0, max = 300, seed = 40, thickness=3.5, nuclei=false);
-  }
-}
-
diff --git a/rack/assemblyGuide.scad b/rack/assemblyGuide.scad
index 0480e10..4dd1254 100644
--- a/rack/assemblyGuide.scad
+++ b/rack/assemblyGuide.scad
@@ -1,5 +1,5 @@
-include <../helper/math.scad>
-include <./config.scad>
+include <../helper/common.scad>
+include <../config/common.scad>
 include <./mainRail.scad>
 include <./yBar.scad>
 include <./xBar.scad>
@@ -12,6 +12,7 @@ include <./xyPlate.scad>
 
 include <../rack-mount/side-rail/dualMount.scad>
 
+// TODO: this is completly broken. fix this and figure out a nice way to run this with cli commands
 assemblyInstructions();
 
 module assemblyInstructions () {
diff --git a/rack/connector/basePlateYBarConnectors.scad b/rack/connector/basePlateYBarConnectors.scad
index 426489d..f4b9f13 100644
--- a/rack/connector/basePlateYBarConnectors.scad
+++ b/rack/connector/basePlateYBarConnectors.scad
@@ -1,14 +1,7 @@
-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 <../../config/common.scad>
 include <../sharedVariables.scad>
 
-include <../config.scad>
-
 _mountX = 12;
 _mountY = 14;
 _mountZ = 10;
diff --git a/rack/connector/connectors.scad b/rack/connector/connectors.scad
index c3b3888..9070b64 100644
--- a/rack/connector/connectors.scad
+++ b/rack/connector/connectors.scad
@@ -1,14 +1,7 @@
-/*
-  Connector factory
-*/
-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 <../config.scad>
+// Connector Aggregator and utils
 
+include <../../helper/common.scad>
+include <../../config/common.scad>
 include <./xBarYBarConnectors.scad>
 include <./mainRailYBarConnectors.scad>
 include <./sideModuleYBarConnectors.scad>
diff --git a/rack/connector/mainRailYBarConnectors.scad b/rack/connector/mainRailYBarConnectors.scad
index b475d41..00c7463 100644
--- a/rack/connector/mainRailYBarConnectors.scad
+++ b/rack/connector/mainRailYBarConnectors.scad
@@ -1,15 +1,7 @@
-include <../../helper/screws.scad>
 include <../../helper/common.scad>
-include <../../helper/matrix.scad>
-include <../../helper/halfspace.scad>
-include <../../helper/slack.scad>
-include <../../helper/dovetail.scad>
-include <../../helper/halfspace.scad>
-
+include <../../config/common.scad>
 include <../sharedVariables.scad>
 
-include <../config.scad>
-
 mainRailHeatSetOnYBarDx = railSideMountThickness + 5;
 mainRailHeatSetOnYBarDy = railFrontThickness + 2;
 
diff --git a/rack/connector/sideModuleYBarConnectors.scad b/rack/connector/sideModuleYBarConnectors.scad
index 6e69987..4141898 100644
--- a/rack/connector/sideModuleYBarConnectors.scad
+++ b/rack/connector/sideModuleYBarConnectors.scad
@@ -1,12 +1,7 @@
-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 <../../config/common.scad>
 include <../sharedVariables.scad>
 include <../side/sideWallVariables.scad>
-include <../config.scad>
 
 module onYBarSideModuleNegative() {
 
diff --git a/rack/connector/stackYBarConnectors.scad b/rack/connector/stackYBarConnectors.scad
index 4b21cb3..2cf1360 100644
--- a/rack/connector/stackYBarConnectors.scad
+++ b/rack/connector/stackYBarConnectors.scad
@@ -1,13 +1,7 @@
-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 <../../config/common.scad>
 include <../sharedVariables.scad>
 
-include <../config.scad>
 
 connectorYEdgeToYBarYEdge = 5;
 connectorXEdgeToYBarXEdge = 5;
diff --git a/rack/connector/xBarYBarConnectors.scad b/rack/connector/xBarYBarConnectors.scad
index 31666da..c9b917c 100644
--- a/rack/connector/xBarYBarConnectors.scad
+++ b/rack/connector/xBarYBarConnectors.scad
@@ -1,14 +1,7 @@
-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 <../../config/common.scad>
 include <../sharedVariables.scad>
 
-include <../config.scad>
-
 // On xBar
 module onXBarToYBarNegative() {
   y = 27;
diff --git a/rack/mainRail.scad b/rack/mainRail.scad
index cc980f7..d9fdb4a 100644
--- a/rack/mainRail.scad
+++ b/rack/mainRail.scad
@@ -1,15 +1,9 @@
-include <./config.scad>
-include <../helper/screws.scad>
-include <../helper/filet.scad>
-include <../helper/slack.scad>
-include <../helper/math.scad>
-include <../helper/halfspace.scad>
+include <../helper/common.scad>
+include <../config/common.scad>
 include <./sharedVariables.scad>
-include <../helper/matrix.scad>
-
 include <./connector/connectors.scad>
 
-*mainRail();
+mainRail();
 
 module mainRail() {
 
diff --git a/rack/print/eval_P.scad b/rack/print/eval_P.scad
index a86ed3e..57f115e 100644
--- a/rack/print/eval_P.scad
+++ b/rack/print/eval_P.scad
@@ -1,6 +1,7 @@
-include <../xBar.scad>
-include <../yBar.scad>
-include <../mainRail.scad>
+include <../sharedVariables.scad>
+use <../xBar.scad>
+use <../yBar.scad>
+use <../mainRail.scad>
 
 // Evaluation print for slack config, please see slack.scad
 // to configure tolerances
diff --git a/rack/print/hingeModule_P1.scad b/rack/print/hingeModule_P1.scad
index f9933e5..08593b1 100644
--- a/rack/print/hingeModule_P1.scad
+++ b/rack/print/hingeModule_P1.scad
@@ -1,4 +1,4 @@
-include <../side/hingeModule.scad>
+use <../side/hingeModule.scad>
 
 // Oriented for 3d printing.
 // Supports generally not required (? need to print to test)
diff --git a/rack/print/magnetModule_P1.scad b/rack/print/magnetModule_P1.scad
index a21a970..29b4e9d 100644
--- a/rack/print/magnetModule_P1.scad
+++ b/rack/print/magnetModule_P1.scad
@@ -1,4 +1,4 @@
-include <../side/magnetModule.scad>
+use <../side/magnetModule.scad>
 
 // Oriented for 3d printing.
 // Supports generally not required (? need to print to test)
diff --git a/rack/print/magnetModule_P2.scad b/rack/print/magnetModule_P2.scad
index aabb3e1..3025957 100644
--- a/rack/print/magnetModule_P2.scad
+++ b/rack/print/magnetModule_P2.scad
@@ -1,4 +1,4 @@
-include <../side/magnetModule.scad>
+use <../side/magnetModule.scad>
 
 // Oriented for 3d printing.
 // Supports generally not required (? need to print to test)
diff --git a/rack/print/mainRail_P.scad b/rack/print/mainRail_P.scad
index e739c4e..1e1d3c6 100644
--- a/rack/print/mainRail_P.scad
+++ b/rack/print/mainRail_P.scad
@@ -1,11 +1,12 @@
-include <../mainRail.scad>
+include <../sharedVariables.scad>
+
+use <../mainRail.scad>
 
 // Oriented for 3d printing.
 // Supports not required.
 multmatrix(mainRailPrintOrientation)
 mainRail();
 
-
 mainRailPrintOrientation = [
     [cos(-90),  0, sin(-90), railTotalHeight],
     [0,         1, 0,        0              ],
diff --git a/rack/print/sideWallLeft_P.scad b/rack/print/sideWallLeft_P.scad
index b74183d..92f2d28 100644
--- a/rack/print/sideWallLeft_P.scad
+++ b/rack/print/sideWallLeft_P.scad
@@ -1,4 +1,4 @@
-include <../side/sideWallLeft.scad>
+use <../side/sideWallLeft.scad>
 
 // Oriented for 3d printing.
 // Supports generally not required (? need to print to test), but a brim is recommended
diff --git a/rack/print/sideWallRight_P.scad b/rack/print/sideWallRight_P.scad
index f8660b3..ff03b3e 100644
--- a/rack/print/sideWallRight_P.scad
+++ b/rack/print/sideWallRight_P.scad
@@ -1,4 +1,4 @@
-include <../side/sideWallRight.scad>
+use <../side/sideWallRight.scad>
 
 // Oriented for 3d printing.
 // Supports generally not required (? need to print to test), but a brim is recommended
diff --git a/rack/print/xBar_P.scad b/rack/print/xBar_P.scad
index 5a0e56f..3cf1a35 100644
--- a/rack/print/xBar_P.scad
+++ b/rack/print/xBar_P.scad
@@ -1,4 +1,4 @@
-include <../xBar.scad>
+use <../xBar.scad>
 
 // Oriented for 3d printing.
 // Supports generally not required: depending on roundness.
diff --git a/rack/print/xyPlate_P.scad b/rack/print/xyPlate_P.scad
index 3f63861..b2b7305 100644
--- a/rack/print/xyPlate_P.scad
+++ b/rack/print/xyPlate_P.scad
@@ -1,4 +1,4 @@
-include <../xyPlate.scad>
+use <../xyPlate.scad>
 
 // Oriented for 3d printing.
 // Supports generally not required.
diff --git a/rack/print/yBar_P.scad b/rack/print/yBar_P.scad
index 3e14161..bbbfc91 100644
--- a/rack/print/yBar_P.scad
+++ b/rack/print/yBar_P.scad
@@ -1,16 +1,5 @@
-include <../yBar.scad>
-
-include <../xBar.scad>
+use <../yBar.scad>
 
 // Oriented for 3d printing.
 // Supports required at XY wall connections, and depending on roundness
 yBar();
-
-
-*difference() {
-  translate(v=[2,0,0])
-  cube(size=[16,10,6], center=true);
-  hexNutPocket_N("m3", openSide = false, backSpace = 5, bridgeFront = true);
-}
-
-*hexNutPocket_N("m3", openSide = false, backSpace = 5, bridgeBack = true);
\ No newline at end of file
diff --git a/rack/profiles.scad b/rack/profiles.scad
deleted file mode 100644
index 6967876..0000000
--- a/rack/profiles.scad
+++ /dev/null
@@ -1,53 +0,0 @@
-/*
-    case-files v2
-    This file contains
-    Example usage:
-
- profileName = "mini";
- varName = "mainRailSideMountScrewType";
-
- profile = getProfile(profileName);
- echo("val:", getConfigValue(profile, varName));
- */
-
-_profileConfigs = [
-    ["default", [
-      ["maxUnitWidth", 180],
-      ["maxUnitDepth", 180],
-      ["numRailScrews", 18],
-      ["screwDiff", 10],
-      ["mainRailScrewType", "m4"],
-      ["mainRailSideMountScrewType", "m4"],
-      ["rackFrameScrewType", "m3"],
-      ["baseRoundness", 5],
-    ]],
-    ["nano", [
-      ["maxUnitWidth", 105],
-      ["maxUnitDepth", 105],
-      ["numRailScrews", 10]
-    ]],
-    ["micro", [
-      ["maxUnitWidth", 180],
-      ["maxUnitDepth", 180],
-      ["numRailScrews", 18]
-    ]],
-    ["mini", [
-      ["maxUnitWidth", 205],
-      ["maxUnitDepth", 205],
-      ["numRailScrews", 20]
-    ]]
-  ];
-
-function _getConfigValueRaw(profile, varName) = profile[search([varName], profile)[0]][1];
-function _getProfileRaw(profileName) = _profileConfigs[search([profileName], _profileConfigs)[0]][1];
-
-function _getConfigValueOrThrowError(val) = val == undef? assert(false, "blah") 0: val;
-function _getConfigValueOrDefault(val, default) = val == undef? default: val;
-
-function getConfigValue(profile, varName) =
-  _getConfigValueOrDefault(
-    _getConfigValueRaw(profile, varName),
-    _getConfigValueOrThrowError(_getConfigValueRaw(getProfile("default"), varName))
-  );
-
-function getProfile(profileName) = _getConfigValueOrThrowError(_getProfileRaw(profileName));
diff --git a/rack/sharedVariables.scad b/rack/sharedVariables.scad
index 73881a3..f4e27a1 100644
--- a/rack/sharedVariables.scad
+++ b/rack/sharedVariables.scad
@@ -1,4 +1,4 @@
-include <./config.scad>
+include <../config/common.scad>
 
 // Main rail variables:
 
diff --git a/rack/side/hingeModule.scad b/rack/side/hingeModule.scad
index ca99927..fa7d1db 100644
--- a/rack/side/hingeModule.scad
+++ b/rack/side/hingeModule.scad
@@ -1,11 +1,10 @@
-include <../config.scad>
-include <./sideWallVariables.scad>
+include <../../helper/common.scad>
+include <../../config/common.scad>
 include <../sharedVariables.scad>
-include <../../helper/halfspace.scad>
-include <../../helper/screws.scad>
+include <./sideWallVariables.scad>
 
 translate(v=[10,20,-2 - sideWallZHingeTotalClearance])
-*hingeModule();
+hingeModule();
 
 module hingeModule() {
 
diff --git a/rack/side/magnetModule.scad b/rack/side/magnetModule.scad
index ef88f82..97d1c32 100644
--- a/rack/side/magnetModule.scad
+++ b/rack/side/magnetModule.scad
@@ -1,13 +1,10 @@
-
-include <../config.scad>
-include <./sideWallVariables.scad>
+include <../../helper/common.scad>
+include <../../config/common.scad>
 include <../sharedVariables.scad>
-include <../../helper/halfspace.scad>
-include <../../helper/magnet.scad>
-include <../../helper/screws.scad>
+include <./sideWallVariables.scad>
 
 translate(v=[10,-5,-(2+sideWallZHingeTotalClearance)])
-*magnetModule();
+magnetModule();
 
 magnetModuleMagnetMountDy = magnetMountToYBarFront - sideWallSlotToXZ;
 magnetModuleMagnetMountDz = magnetMountToYBarTop + sideWallConnLugDepression;
diff --git a/rack/side/sideWallBase.scad b/rack/side/sideWallBase.scad
index d9b8c92..9fc3196 100644
--- a/rack/side/sideWallBase.scad
+++ b/rack/side/sideWallBase.scad
@@ -1,19 +1,11 @@
-include <../../helper/math.scad>
-include <../../helper/halfspace.scad>
-include <../../helper/magnet.scad>
-include <../../helper/slack.scad>
-include <../config.scad>
-
+include <../../helper/common.scad>
+include <../../config/common.scad>
+include <../sharedVariables.scad>
 include <./sideWallMagnetMount.scad>
 include <./sideWallVariables.scad>
-include <../sharedVariables.scad>
-
 include <./magnetModule.scad>
 include <./hingeModule.scad>
 
-//echo("Side Wall Height", sideWallZ);
-//echo("Side Wall Depth", sideWallY);
-
 //translate(v = [hingePoleDx ,hingePoleDy, 10])
 //rotate(a=[0,0,-120])
 //translate(v = [-hingePoleDx ,-hingePoleDy, 0])
diff --git a/rack/side/sideWallLeft.scad b/rack/side/sideWallLeft.scad
index 802cf5a..0d0738b 100644
--- a/rack/side/sideWallLeft.scad
+++ b/rack/side/sideWallLeft.scad
@@ -1,6 +1,6 @@
 include <./sideWallBase.scad>
 
-*sideWallLeft();
+sideWallLeft();
 
 module sideWallLeft() {
 
diff --git a/rack/side/sideWallMagnetMount.scad b/rack/side/sideWallMagnetMount.scad
index d29fa95..ed71cea 100644
--- a/rack/side/sideWallMagnetMount.scad
+++ b/rack/side/sideWallMagnetMount.scad
@@ -1,9 +1,7 @@
-
-include <../config.scad>
-include <./sideWallVariables.scad>
+include <../../helper/common.scad>
+include <../../config/common.scad>
 include <../sharedVariables.scad>
-include <../../helper/halfspace.scad>
-include <../../helper/magnet.scad>
+include <./sideWallVariables.scad>
 
 module sideWallMagnetMount() {
   // oriented so that the xy face is the side wall's inner face
diff --git a/rack/side/sideWallRight.scad b/rack/side/sideWallRight.scad
index 15a3d5d..2376fa1 100644
--- a/rack/side/sideWallRight.scad
+++ b/rack/side/sideWallRight.scad
@@ -1,6 +1,6 @@
 include <./sideWallBase.scad>
 
-*sideWallRight();
+sideWallRight();
 
 module sideWallRight() {
 
diff --git a/rack/side/sideWallVariables.scad b/rack/side/sideWallVariables.scad
index 595ec31..060f6c0 100644
--- a/rack/side/sideWallVariables.scad
+++ b/rack/side/sideWallVariables.scad
@@ -1,9 +1,6 @@
+include <../../helper/common.scad>
+include <../../config/common.scad>
 
-include <../config.scad>
-include <../sharedVariables.scad>
-include <../../helper/magnet.scad>
-include <../../helper/slack.scad>
-include <../../helper/dowel.scad>
 
 sideWallConnW = 7;
 sideWallConnD = 20;
diff --git a/rack/stackEnds.scad b/rack/stackEnds.scad
index 43a52ed..d1ffa72 100644
--- a/rack/stackEnds.scad
+++ b/rack/stackEnds.scad
@@ -1,5 +1,4 @@
-include <../helper/halfspace.scad>
-include <../helper/slack.scad>
+include <../helper/common.scad>
 include <./sharedVariables.scad>
 include <./connector/connectors.scad>
 
diff --git a/rack/xBar.scad b/rack/xBar.scad
index b4a3a26..f3032d4 100644
--- a/rack/xBar.scad
+++ b/rack/xBar.scad
@@ -1,13 +1,9 @@
-include <../helper/cylindricalFilet.scad>
-include <../helper/filet.scad>
-include <../helper/screws.scad>
-include <../helper/matrix.scad>
-
-include <./config.scad>
+include <../helper/common.scad>
+include <../config/common.scad>
 include <./sharedVariables.scad>
 include <./connector/connectors.scad>
 
-*xBar();
+xBar();
 
 module xBar() {
 
diff --git a/rack/xyPlate.scad b/rack/xyPlate.scad
index a1393fa..487cbc2 100644
--- a/rack/xyPlate.scad
+++ b/rack/xyPlate.scad
@@ -1,10 +1,7 @@
-include <../helper/slack.scad>
-include <./yBar.scad>
-include <./xBar.scad>
+include <../helper/common.scad>
 include <./connector/connectors.scad>
 
-*xyPlate();
-
+xyPlate();
 
 xyPlateConnDx = xBarX + 2*_heatSetX; // X distance between connectors
 xyPlateConnDy = yBarDepth - 2*basePlateScrewMountToYBarXZFace; // Y distance between connectors
diff --git a/rack/yBar.scad b/rack/yBar.scad
index 5f03c8f..42ea080 100644
--- a/rack/yBar.scad
+++ b/rack/yBar.scad
@@ -1,16 +1,9 @@
-include <../helper/math.scad>
-include <../helper/matrix.scad>
-include <../helper/sphericalFilet.scad>
-include <../helper/cylindricalFilet.scad>
-include <../helper/screws.scad>
-include <../helper/magnet.scad>
-include <./config.scad>
-include <./mainRail.scad>
-
+include <../helper/common.scad>
+include <../config/common.scad>
 include <./connector/connectors.scad>
 include <./sharedVariables.scad>
 
-*yBar();
+yBar();
 
 module yBar() {
 
diff --git a/resource/sbc/rpi/frontPlate.scad b/resource/sbc/rpi/frontPlate.scad
index 59df78b..a17586a 100644
--- a/resource/sbc/rpi/frontPlate.scad
+++ b/resource/sbc/rpi/frontPlate.scad
@@ -1,6 +1,6 @@
 include <../common.scad>
 include <../rack/screws.scad>
-include <../sinusoid.scad>
+include <../sine.scad>
 
 vU = 2;
 uHeight = 10;
diff --git a/stl/micro/rack-mount/dualLBracketSupportRail_P1.stl b/stl/micro/rack-mount/dualLBracketSupportRail_P1.stl
index 78512d6..cfb2dc2 100644
Binary files a/stl/micro/rack-mount/dualLBracketSupportRail_P1.stl and b/stl/micro/rack-mount/dualLBracketSupportRail_P1.stl differ
diff --git a/stl/micro/rack-mount/dualLBracketSupportRail_P2.stl b/stl/micro/rack-mount/dualLBracketSupportRail_P2.stl
index fe5377b..35810ee 100644
Binary files a/stl/micro/rack-mount/dualLBracketSupportRail_P2.stl and b/stl/micro/rack-mount/dualLBracketSupportRail_P2.stl differ
diff --git a/stl/micro/rack/eval_P.stl b/stl/micro/rack/eval_P.stl
index 2d2a370..d3112d6 100644
Binary files a/stl/micro/rack/eval_P.stl and b/stl/micro/rack/eval_P.stl differ
diff --git a/stl/micro/rack/hingeModule_P1.stl b/stl/micro/rack/hingeModule_P1.stl
index d14ab45..de2545f 100644
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diff --git a/stl/micro/rack/magnetModule_P1.stl b/stl/micro/rack/magnetModule_P1.stl
index 3d1e29c..2cd50a8 100644
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diff --git a/stl/micro/rack/magnetModule_P2.stl b/stl/micro/rack/magnetModule_P2.stl
index f06b99a..26d6cf7 100644
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diff --git a/stl/micro/rack/mainRail_P.stl b/stl/micro/rack/mainRail_P.stl
index 9c8183f..6b4f2f7 100644
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diff --git a/stl/micro/rack/sideWallLeft_P.stl b/stl/micro/rack/sideWallLeft_P.stl
index acd0724..8fe829a 100644
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diff --git a/stl/micro/rack/sideWallRight_P.stl b/stl/micro/rack/sideWallRight_P.stl
index 891f4cf..370a7bd 100644
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diff --git a/stl/micro/rack/xBar_P.stl b/stl/micro/rack/xBar_P.stl
index 7ae3337..899eda9 100644
Binary files a/stl/micro/rack/xBar_P.stl and b/stl/micro/rack/xBar_P.stl differ
diff --git a/stl/micro/rack/xyPlate_P.stl b/stl/micro/rack/xyPlate_P.stl
index c033b53..a7f8b85 100644
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diff --git a/stl/micro/rack/yBar_P.stl b/stl/micro/rack/yBar_P.stl
index 8d3256b..11ce9d5 100644
Binary files a/stl/micro/rack/yBar_P.stl and b/stl/micro/rack/yBar_P.stl differ
diff --git a/stl/mini/rack-mount/dualLBracketSupportRail_P1.stl b/stl/mini/rack-mount/dualLBracketSupportRail_P1.stl
index 8f57919..e867f40 100644
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diff --git a/stl/mini/rack-mount/dualLBracketSupportRail_P2.stl b/stl/mini/rack-mount/dualLBracketSupportRail_P2.stl
index 2f749a6..ae8956c 100644
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diff --git a/stl/mini/rack/eval_P.stl b/stl/mini/rack/eval_P.stl
index 427db31..e84c7f0 100644
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diff --git a/stl/mini/rack/hingeModule_P1.stl b/stl/mini/rack/hingeModule_P1.stl
index d14ab45..de2545f 100644
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diff --git a/stl/mini/rack/magnetModule_P1.stl b/stl/mini/rack/magnetModule_P1.stl
index 3d1e29c..2cd50a8 100644
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diff --git a/stl/mini/rack/magnetModule_P2.stl b/stl/mini/rack/magnetModule_P2.stl
index f06b99a..26d6cf7 100644
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diff --git a/stl/mini/rack/mainRail_P.stl b/stl/mini/rack/mainRail_P.stl
index 350d04c..fc50746 100644
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diff --git a/stl/mini/rack/sideWallLeft_P.stl b/stl/mini/rack/sideWallLeft_P.stl
index 5c96586..a1bd655 100644
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diff --git a/stl/mini/rack/sideWallRight_P.stl b/stl/mini/rack/sideWallRight_P.stl
index 5888ece..9c97af7 100644
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diff --git a/stl/mini/rack/xBar_P.stl b/stl/mini/rack/xBar_P.stl
index 3eacb05..6e3ea00 100644
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diff --git a/stl/mini/rack/xyPlate_P.stl b/stl/mini/rack/xyPlate_P.stl
index c7bed3b..d6aee6f 100644
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diff --git a/stl/mini/rack/yBar_P.stl b/stl/mini/rack/yBar_P.stl
index 0f43a52..2e3bbea 100644
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diff --git a/stl/nano/rack-mount/dualLBracketSupportRail_P1.stl b/stl/nano/rack-mount/dualLBracketSupportRail_P1.stl
index 6897798..62848a6 100644
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diff --git a/stl/nano/rack-mount/dualLBracketSupportRail_P2.stl b/stl/nano/rack-mount/dualLBracketSupportRail_P2.stl
index 3ab394b..d3c5a1e 100644
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