From 4dcb6a646b9955cf74fc36db650629dbb51b4e29 Mon Sep 17 00:00:00 2001
From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Mon, 2 Jan 2017 15:56:48 +0000
Subject: [PATCH] sewing-table: tongue/groove done

---
 sewing-table.scad.m4 | 40 +++++++++++++++++++++++-----------------
 1 file changed, 23 insertions(+), 17 deletions(-)

diff --git a/sewing-table.scad.m4 b/sewing-table.scad.m4
index 5a6aec0..ba93622 100644
--- a/sewing-table.scad.m4
+++ b/sewing-table.scad.m4
@@ -160,7 +160,7 @@ module InterlockEdgePlan(negative, nlobes, length, dosquare=true) {
 
   if (dosquare) {
     iadj = 0;
-    slotshorter = negative ? 0 : interlock_fine_lenslop;
+    slotshorter = negative ? -0.1 : interlock_fine_lenslop;
     mirror([0, negative])
       translate([slotshorter, iadj])
       square([length - slotshorter*2, interlock_fine + iadj*2]);
@@ -214,13 +214,15 @@ module TestPiece1(){ ////toplevel
 	    ];
   corners = TestPiece_holes2corners(holes);
   difference(){
-    TileBase(corners[0], corners[2]);
+    union(){
+      TileBase(corners[0], corners[2]);
+      Posts(holes);
+      RoundEdge(corners[0], corners[1]);
+      RoundEdge(corners[3], corners[0]);
+      RoundLeftCorner(corners[0], corners[1]);
+    }
     InterlockEdge(corners[1], corners[2], 1, nlobes=1);
   }
-  Posts(holes);
-  RoundEdge(corners[0], corners[1]);
-  RoundEdge(corners[3], corners[0]);
-  RoundLeftCorner(corners[0], corners[1]);
 }
 
 module TestPiece2(){ ////toplevel
@@ -260,14 +262,16 @@ module Tile02(){ ////toplevel
   c = Rectangle_corners(c0, sz);
   posts = Rectangle_corners2posts(c);
   difference(){
-    TileBase(c[0], c[2]);
+    union(){
+      TileBase(c[0], c[2]);
+      Posts(posts);
+      RoundEdge(c[0], c[1]);
+      RoundEdge(c[3], c[0]);
+      RoundLeftCorner(c[0], c[1]);
+      InterlockEdge(c[2], c[3], 0);
+    }
     InterlockEdge(c[1], c[2], 1);
   }
-  Posts(posts);
-  RoundEdge(c[0], c[1]);
-  RoundEdge(c[3], c[0]);
-  RoundLeftCorner(c[0], c[1]);
-  InterlockEdge(c[2], c[3], 0);
 }
 
 module Tile12(){ ////toplevel
@@ -276,13 +280,15 @@ module Tile12(){ ////toplevel
   c = Rectangle_corners(c0, sz);
   posts = Rectangle_corners2posts(c);
   difference(){
-    TileBase(c[0], c[2]);
+    union(){
+      TileBase(c[0], c[2]);
+      RoundEdge(c[2], c[3]);
+      RoundEdge(c[3], c[0]);
+      RoundLeftCorner(c[2], c[3]);
+      Posts(posts);
+    }
     InterlockEdge(c[0], c[1], 1);
   }
-  Posts(posts);
-  RoundEdge(c[2], c[3]);
-  RoundEdge(c[3], c[0]);
-  RoundLeftCorner(c[2], c[3]);
 }
 
 module Demo(){ ////toplevel
-- 
2.30.2