post_shorter = 1;
-screw_dia = 2.2;
+$screw_dia = 3.168;
screw_big_dia = 3.6;
screw_big_len = 4.0;
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);
}
}
}
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]);
+ InterlockEdge(corners[3], corners[0], 0, nlobes=1);
+ for (i= [ 0: nholes-1 ]) {
+ $screw_dia = hole_sizes[ floor(i/2) ];
+ Posts([ stride * [ (i % nrows),
+ floor(i / nrows) ] ]);
+ }
+ }
+ }
+}
+
module Machine_NewRearProfile(){
// figures copied out of xfig edit boxes
// best not to edit the posbox size if poss - just move it