sewing-table: Introduce InterlockEdge

[reprap-play.git] / sewing-table.scad.m4

diff --git a/sewing-table.scad.m4 b/sewing-table.scad.m4
index 2d48d82e63e661870c20e34876677caa62f05135..38638ac0f5f15bd0b2786a9f6d9601e396c19abb 100644 (file)
--- a/sewing-table.scad.m4
+++ b/sewing-table.scad.m4
@@ -139,7 +139,10 @@ module InterlockLobePlan(r, ymir) {
   }
 }
 
-module InterlockLobeCore(r, plusth, ymir) {
+module InterlockLobeCore(negative=0) {
+  r = negative ? interlock_negative_rad : interlock_rad;
+  plusth = negative * 1.0;
+  ymir = negative ? 0 : 1;
   translate([0, 0, plusth]){
     mirror([0,0,1]){
       linear_extrude(height=tile_th+plusth*2, convexity=10){
@@ -151,9 +154,17 @@ module InterlockLobeCore(r, plusth, ymir) {
 
 module InterlockLobe(this_cnr, right_cnr, negative=0) {
   INREFFRAME(this_cnr, right_cnr)
-    InterlockLobeCore(negative ? interlock_negative_rad : interlock_rad,
-                 negative ? 1 : 0,
-                 negative ? 0 : 1);
+    InterlockLobeCore(negative);
+}
+
+module InterlockEdge(left_cnr, right_cnr, negative=0, nlobes=2) {
+  INREFFRAME(left_cnr, right_cnr) {
+    for (lobei = [ 0 : nlobes-1 ]) {
+      lobex = (length - thehd[0]*2) * lobei / (nlobes-1);
+      translate([lobex, 0, 0])
+       InterlockLobeCore(negative);
+    }
+  }
 }
 
 function TestPiece_holes2corners(holes) =
@@ -220,6 +231,7 @@ module Tile02(){ ////toplevel
   RoundEdge(c[0], c[1]);
   RoundEdge(c[3], c[0]);
   RoundLeftCorner(c[0], c[1]);
+  InterlockEdge(c[2], c[3], 0, 2);
 }
 
 module Tile12(){ ////toplevel