20 ply_edge_hole_dist = ply_edge_min + ply_hole_dia/2;
22 echo("HOLES IN PLY ctr dist from edge = "+str(ply_edge_hole_dist));
24 hole_slop = (ply_hole_dia - post_dia)/2;
25 tile_hard_edge_hole_dist = ply_edge_hole_dist + hole_slop;
26 thehd = [ tile_hard_edge_hole_dist, tile_hard_edge_hole_dist ];
31 cylinder(r= post_dia/2, h= tile_th + ply_th - post_shorter);
32 translate([0,0, tile_th]) {
33 cylinder(r= screw_big_dia/2, h= screw_big_len);
34 cylinder(r= screw_dia/2, h= ply_th);
42 translate([p[0], p[1], 0])
47 module TileBase(botleft_post, topright_post){
48 botleft = botleft_post - thehd;
49 size = topright_post - botleft_post + thehd * 2;
51 translate([botleft[0], botleft[1], 0])
52 cube([size[0], size[1], tile_th]);
55 module RoundEdge(left_post, right_post) {
56 length_vec = right_post - left_post;
57 ortho_vec = [ -length_vec[1], length_vec[0] ] / dist2d(length_vec);
58 multmatrix([ [ length_vec[0], length_vec[1], 0, left_post[0], ],
59 [ otho_vec[0], ortho_vec[1], 0, left_post[1], ],
62 translate([0, -tile_hard_edge_hole_dist, -round_edge_rad]){
65 cylinder(r= round_edge_rad, h= 1.0);
66 translate([-1, 0, -20])
73 module RoundLeftCorner(this_post, right_post) {
80 TileBase(holes[0], holes[1]);
82 RoundEdge(holes[0], holes[1]);
83 RoundLeftCorner(holes[0], holes[1]);