refactor - introduce config folder, and other misc changes

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);