refactor - introduce config folder, and other misc changes

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);
-  }
-}
+include <./apply.scad>
+include <./dovetail.scad>
+include <./filet.scad>
+include <./keystone.scad>
+include <./math.scad>
+include <./matrix.scad>
+include <./screws.scad>
+include <./sine.scad>