chiark / gitweb /
sewing-table: wip new machine profile
[reprap-play.git] / sewing-table.scad.m4
index 4c7d53b7cf2095d125b0095276cdf0f0af7850f8..472aacf382e756d1fc9d0a4d8fb541f12700a077 100644 (file)
@@ -30,21 +30,70 @@ demo_slop = 0.1;
 
 // cutout
 
+machine_rear_to_front = 85;
+
+machine_rear_profile = [
+                       [ -  0,  -0.00 ],
+                       [ -  2,  -0.10 ],
+                       [ -  4,  -0.25 ],
+                       [ -  6,  -0.50 ],
+                       [ -  8,  -0.75 ],
+                       [ - 10,  -1.50 ],
+                       [ - 12,  -2.25 ],
+                       [ - 14,  -3.25 ],
+                       [ - 16,  -4.25 ],
+                       [ - 18,  -5.75 ],
+                       [ - 20,  -8.00 ]
+                       ];
+
+machine_front_profile =  [
+                         [  128,  -3.70,  ],
+                         [  124,  -2.80,  ],
+                         [  120,  -2.50,  ],
+                         [  116,  -2.00,  ],
+                         [  112,  -1.80,  ],
+                         [  108,  -1.60,  ],
+                         [  104,  -1.30,  ],
+                         [  100,  -1.00,  ],
+                         [   96,  -0.80,  ],
+                         [   92,  -0.70,  ],
+                         [   88,  -0.50,  ],
+                         [   84,  -0.50,  ]
+                         ];
+
 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_y = 85;
+cutout_l_end_x = 22;
+cutout_l_end_y = machine_rear_to_front;
 cutout_l_end_curve = 1;
 cutout_l_end_y_total = cutout_l_end_y
   + cutout_l_end_y_front_slop + cutout_l_end_y_rear_slop;
 
-tile01_tr = [250, 0];
+tile02_tr = [-250, 0];
+tile01_tr = [  0, 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 = 0.75;
+
+rearcurve_avoid_y = rearcurve_rad + 10;
+
+reartablet_z = 2.54;
+reartablet_x = 5 + 1;
+reartablet_y = 5;
+
 // calculated
 
 TEST = false;
@@ -334,8 +383,74 @@ module Machine_Arm(){
   }
 }
 
-module Machine(){
+module Machine_Profile(){
+  first_rear = machine_rear_profile[0];
+  first_front = machine_front_profile[len(machine_front_profile)-1];
+  below_point = 0.5 * ( first_rear + first_front ) + [ 0, -40 ];
+  pol = concat( machine_rear_profile,
+               [ below_point ],
+               machine_front_profile);
+  skew_angle = atan2( first_front[1] - first_rear[1],
+                     first_front[0] - first_rear[0] );
+  echo(below_point, pol, skew_angle);
+  rotate([0,0, -skew_angle ]){
+    polygon(pol);
+  }
+}
+
+module Machine_Rear(){ ////toplevel
+  big_rad = rearcurve_total_len - rearcurve_strt_len + rearcurve_rad;
+  small_rad = rearcurve_rad + rearcurve_rad_slop;
+  translate([ tile01_tr[0] - cutout_l_end_x + rearedge_len,
+             cutout_tile11_y,
+             0 ]){
+    //%cube([20,20,20]);
+    translate([ -reartablet_x,
+               -1,
+               -reartablet_z])
+      mirror([0,0,1])
+      cube([ reartablet_x+1,
+            reartablet_y+1,
+            20 ]);
+    translate([ rearcurve_strt_len,
+               0,
+               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(){ ////toplevel
   Machine_Arm();
+  Machine_Rear();
 }
   
 function Rectangle_corners(c0, sz) =
@@ -365,7 +480,7 @@ m4_define(`R_EDGE',`$1[$2],$1[(($2)+1)%4]')
 
 module Tile02(){ ////toplevel
   sz = [100,170];
-  c0 = -sz;
+  c0 = tile02_tr + -sz;
   c = Rectangle_corners(c0, sz);
   posts = Rectangle_corners2posts(c);
   rcs = [R_EDGE(c,0)];
@@ -385,7 +500,7 @@ module Tile02(){ ////toplevel
 
 module Tile12(){ ////toplevel
   sz = [100,250];
-  c0 = [-sz[0], 0];
+  c0 = tile02_tr + [-sz[0], 0];
   c = Rectangle_corners(c0, sz);
   posts = Rectangle_corners2posts(c);
   rcs = [R_EDGE(c,3)];
@@ -403,12 +518,12 @@ 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];
+tile_01_11_cnr = tile01_tr + [-cutout_tile11_x, 0];
+tile_11_10_cnr = tile01_tr + [0, cutout_tile11_y];
 
 module Tile11(){ ////toplevel
   sz = [250,250];
-  c0 = [0,0];
+  c0 = tile02_tr + [0,0];
   c = Rectangle_corners(c0, sz);
   cnr_posts = Rectangle_corners2posts(c);
   posts = concat(
@@ -431,11 +546,11 @@ module Tile11(){ ////toplevel
   }
 }    
 
-tile_01_00_cnr = [250, 0] + [0, -cutout_tile01_y];
+tile_01_00_cnr = tile01_tr + [0, -cutout_tile01_y];
 
 module Tile01(){ ////toplevel
   sz = [250,170];
-  c0 = [0,-sz[1]];
+  c0 = tile02_tr + [0,-sz[1]];
   c = Rectangle_corners(c0, sz);
   cnr_posts = Rectangle_corners2posts(c);
   posts = concat(
@@ -457,14 +572,44 @@ module Tile01(){ ////toplevel
   }
 }    
 
+module Tile10(){ ////toplevel
+  sz = [250,250];
+  c0 = tile02_tr + [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] + [ -sz[1] + rearedge_len - cutout_l_end_x, cty ],
+           cnr_posts[1] + [ 0,                             rcy ],
+           cnr_posts[2],
+           cnr_posts[3] ];
+  rcs = [R_EDGE(c,2)];
+  difference(){
+    union(){
+      Rectangle_TileBase(c);
+      Posts(posts);
+      RoundEdge(R_EDGE(c,1));
+      RoundEdge(R_EDGE(c,2));
+      InterlockEdge(c[3], tile_11_10_cnr);
+    }
+    RoundCornerCut(rcs);
+    Machine();
+  }
+  RoundCornerAdd(rcs);
+}
+
 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();
 }
   
 //TestPiece1();
 //TestPiece2();
 //Demo();
+
+Machine_Profile();