X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=reprap-play.git;a=blobdiff_plain;f=sewing-table.scad.m4;h=b4ec95486dd3a837aef686944e5b303e76b96ad6;hp=d0029d998c224478ac8d6c685259c02ab1199da9;hb=464ea5bfb20555916aa523b6d2745805347b4245;hpb=a99c600d665705d387ac02bc3d7808b266ea6db3

diff --git a/sewing-table.scad.m4 b/sewing-table.scad.m4
index d0029d9..b4ec954 100644
--- a/sewing-table.scad.m4
+++ b/sewing-table.scad.m4
@@ -32,7 +32,9 @@ demo_slop = 0.1;
 
 cutout_l_end_y_front_slop = 0.5;
 cutout_l_end_y_rear_slop = 0.5;
+cutout_l_end_x_slop = 0.25;
 
+cutout_l_end_x = 22;
 cutout_l_end_y = 85;
 cutout_l_end_curve = 1;
 cutout_l_end_y_total = cutout_l_end_y
@@ -41,9 +43,21 @@ cutout_l_end_y_total = cutout_l_end_y
 tile01_tr = [250, 0];
 
 cutout_tile01_y = 170 - 147 + cutout_l_end_y_front_slop;
-cutout_tile11_x = 22 + cutout_l_end_curve;
+cutout_tile11_x = cutout_l_end_x + cutout_l_end_curve;
 cutout_tile11_y = cutout_l_end_y_total - cutout_tile01_y;
 
+// rear curve
+
+rearedge_len = 170;
+
+rearcurve_rad = 25.4;
+rearcurve_strt_len = 65;
+rearcurve_total_len = 84;
+
+rearcurve_rad_slop = 0.5;
+
+rearcurve_avoid_y = rearcurve_rad + 10;
+
 // calculated
 
 TEST = false;
@@ -318,21 +332,62 @@ module TestDemo(){ ////toplevel
 module Machine_Arm(){
   ysz = cutout_l_end_y_total;
   // assume the round end is arc of a circle
-  //rad = 
+  chordlen = dist2d([0,0], [ cutout_l_end_y, cutout_l_end_curve ]);
+  endrad = cutout_l_end_y / cutout_l_end_curve * chordlen;
   
   translate([0,0,-30]) linear_extrude(height=60) {
     translate(tile01_tr + [0, (-cutout_tile01_y + cutout_tile11_y)/2]) {
       intersection(){
 	translate([-100, -ysz/2])
 	  square([400, ysz]);
-	
+	translate([ endrad - cutout_tile11_x - cutout_l_end_x_slop, 0 ])
+	  circle(r=endrad, $fa=0.01,$fd=5);
+      }
+    }
+  }
+}
+
+module Machine_Rear(){
+  big_rad = rearcurve_total_len - rearcurve_strt_len + rearcurve_rad;
+  small_rad = rearcurve_rad + rearcurve_rad_slop;
+  translate([ 250 + rearedge_len - cutout_l_end_y + big_rad,
+	      cutout_tile11_y,
+	      0 ]){
+    translate([ 0,
+		0,
+		-rearcurve_rad
+		]){
+      rotate([0,-90,0]){
+	rotate([0,0, 360/8/2])
+	  cylinder(r = small_rad, h= rearcurve_strt_len);
+      }
+    }
+    translate([ 0,
+		0,
+		big_rad - rearcurve_rad ]) {
+      intersection(){
+	rotate([90,0,0]){
+	  rotate_extrude(convexity=10) {
+	    translate([ big_rad,
+			0 ]) {
+	      hull(){
+		circle(r= small_rad);
+		translate([200,0])
+		  circle(r= small_rad);
+	      }
+	    }
+	  }
+	}
+	mirror([0,0,1])
+	  cube([150,150,150]);
       }
     }
   }
 }
 
-module Machine(){
+module Machine(){ ////toplevel
   Machine_Arm();
+  Machine_Rear();
 }
   
 function Rectangle_corners(c0, sz) =
@@ -400,6 +455,9 @@ module Tile12(){ ////toplevel
   RoundCornerAdd(rcs);
 }
 
+tile_01_11_cnr = [250, 0] + [-cutout_tile11_x, 0];
+tile_11_10_cnr = [250, 0] + [0, cutout_tile11_y];
+
 module Tile11(){ ////toplevel
   sz = [250,250];
   c0 = [0,0];
@@ -419,15 +477,69 @@ module Tile11(){ ////toplevel
       RoundEdge(R_EDGE(c,2));
       InterlockEdge(R_EDGE(c,3));
     }
+    InterlockEdge(c[0], tile_01_11_cnr, 1);
+    InterlockEdge(tile_11_10_cnr, c[2], 1);
+    Machine();
+  }
+}    
+
+tile_01_00_cnr = [250, 0] + [0, -cutout_tile01_y];
+
+module Tile01(){ ////toplevel
+  sz = [250,170];
+  c0 = [0,-sz[1]];
+  c = Rectangle_corners(c0, sz);
+  cnr_posts = Rectangle_corners2posts(c);
+  posts = concat(
+		 Posts_interpolate_one(R_EDGE(cnr_posts,0)),
+		 [ cnr_posts[2] + [0, -cutout_tile01_y] ],
+		 Posts_interpolate_one(cnr_posts[2] - [cutout_tile11_x, 0],
+				       cnr_posts[3])
+		 );
+  difference(){
+    union(){
+      Rectangle_TileBase(c);
+      Posts(posts);
+      RoundEdge(R_EDGE(c,0));
+      InterlockEdge(tile_01_11_cnr, c[3]);
+      InterlockEdge(R_EDGE(c,3));
+    }
+    InterlockEdge(c[1], tile_01_00_cnr, 1);
     Machine();
-    InterlockEdge(R_EDGE(c,0), 1);
   }
 }    
 
+module Tile10(){ ////toplevel
+  sz = [250,250];
+  c0 = [sz[0],0];
+  c = Rectangle_corners(c0, sz);
+  cnr_posts = Rectangle_corners2posts(c);
+  cty = cutout_tile11_y;
+  rcy = cty + rearcurve_avoid_y;
+  posts = [ cnr_posts[0] + [ 0,                              cty ],
+	    cnr_posts[1] + [ -rearedge_len + cutout_l_end_x, rcy ],
+	    cnr_posts[1] + [ 0,                              rcy ],
+	    cnr_posts[2],
+	    cnr_posts[3] ];
+  difference(){
+    union(){
+      Rectangle_TileBase(c);
+      Posts(posts);
+      RoundEdge(R_EDGE(c,2));
+      //InterlockEdge(tile_01_11_cnr, c[3]);
+      //InterlockEdge(R_EDGE(c,3));
+    }
+    //InterlockEdge(c[1], tile_01_00_cnr, 1);
+    Machine();
+  }
+}
+
 module Demo(){ ////toplevel
   translate(demo_slop*[-2,1]) color("blue") Tile12();
   translate(demo_slop*[-2,0]) color("red")  Tile02();
   translate(demo_slop*[-2,1]) color("orange") Tile11();
+  translate(demo_slop*[-2,0]) color("purple") Tile01();
+  translate(demo_slop*[-3,1]) color("blue")   Tile10();
   %Machine();
 }