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=7e4ec968c955402a927032576ee649aa69d1571f;hp=f2449a8c36fabf177ff27871d0afb0861a9ae284;hb=dd1004d78239b6916ce90c959aa0b7054e2bcb20;hpb=523dd21c85f83d100aeed8f15e3c26db7e19eb15

diff --git a/sewing-table.scad.m4 b/sewing-table.scad.m4
index f2449a8..7e4ec96 100644
--- a/sewing-table.scad.m4
+++ b/sewing-table.scad.m4
@@ -14,7 +14,7 @@ post_dia = 8;
 
 post_shorter = 1;
 
-screw_dia = 2.2;
+$screw_dia = 3.2;
 screw_big_dia = 3.6;
 screw_big_len = 4.0;
 
@@ -151,7 +151,7 @@ module Post(){
 	cylinder(r= post_dia/2, h= tile_th + ply_th - post_shorter);
 	translate([0,0, tile_th]) {
 	  cylinder(r= screw_big_dia/2, h= screw_big_len);
-	  cylinder(r= screw_dia/2, h= ply_th, $fn=20);
+	  cylinder(r= $screw_dia/2, h= ply_th, $fn=20);
 	}
       }
     }
@@ -483,6 +483,35 @@ module TestDemo(){ ////toplevel
     TestPiece2();
 }
 
+module PostTestPiece(){ ////toplevel
+  hole_sizes = [2.8, 3.0, 3.1, 3.134, 3.168, 3.2, 3.3, 3.5];
+  nholes = len(hole_sizes)*2;
+  nrows = 4;
+  stride = post_dia*1.5;
+  rect_sz = stride * [ nrows,
+		       ceil(nholes/nrows) ];
+  corners = Rectangle_corners(-stride * 0.5 * [1,1], rect_sz);
+  difference(){
+    union(){
+      TileBase(corners[0], corners[2]);
+      RoundEdge(corners[0], corners[1]);
+      for (i= [ 0: nholes-1 ]) {
+	$screw_dia = hole_sizes[ floor(i/2) ];
+	translate(stride * [ (nrows-1) - (i % nrows),
+			     floor(i / nrows),
+			     0
+			     ]) {
+	  Posts([[0,0]]);
+	  color("blue")
+	    mirror([0,0,1])
+	    translate([post_dia/2, -post_dia/2, 1])
+	    cube([1, post_dia * (i / nholes), tile_th]);
+	}
+      }
+    }
+  }
+}
+
 module Machine_NewRearProfile(){
   // figures copied out of xfig edit boxes
   // best not to edit the posbox size if poss - just move it
@@ -734,6 +763,16 @@ module Leg(){ ////toplevel
 		      + (!TEST ? 0.2 : -leg_midspc_dia/2),
 		   $fn=30);
       }
+    cid_shear = (leg_fin_bot_w - leg_fin_top_w)/2 /
+                 (leg_height -leg_fin_bot_flat_z);
+    multmatrix([[ 1, 0, 0, leg_midspc_dia/2 ],
+		  [ 0, cid_shear,
+		          1, -leg_fin_bot_w/2 ],
+		  [ 0, 1, 0, -leg_height + leg_fin_bot_flat_z ],
+		  [ 0, 0, 0, 1 ]])
+      Commitid_BestCount([ leg_big_dia/2 - leg_midspc_dia/2,
+                            leg_height - leg_fin_bot_flat_z
+	  		      - leg_top_thick ]);
     if (!TEST)
       for (rot=[45: 360/leg_n_tubules : 359]) rotate(rot) {
 	  mirror([0,0,1]) translate([ leg_tubule_pos_rad, 0, -1])