4 include <commitid.scad>
22 interlock_fine = 0.66;
24 interlock_fine_lenslop = 1.0;
30 ply_edge_hole_dist = ply_edge_min + ply_hole_dia/2;
32 echo(str("HOLES IN PLY ctr dist from PLY edge = ", ply_edge_hole_dist));
34 hole_slop = (ply_hole_dia - post_dia)/2;
35 tile_hard_edge_hole_dist = ply_edge_hole_dist + hole_slop;
37 echo(str("HOLES IN PLY ctr dist from TILE HARD edge = ",
38 tile_hard_edge_hole_dist));
40 echo(str("HOLES IN PLY ctr dist from TILE ROUND edge = ",
41 tile_hard_edge_hole_dist + round_edge_rad));
43 thehd = [ tile_hard_edge_hole_dist, tile_hard_edge_hole_dist ];
45 thehd_tl = [ -thehd_tr[0], thehd_tr[1] ];
49 interlock_rad = interlock_dia/2;
50 interlock_negative_rad = interlock_rad + 0.125;
52 interlock_sq_adj = 0.2; // arbitrary
57 cylinder(r= post_dia/2, h= tile_th + ply_th - post_shorter);
58 translate([0,0, tile_th]) {
59 cylinder(r= screw_big_dia/2, h= screw_big_len);
60 cylinder(r= screw_dia/2, h= ply_th, $fn=20);
68 translate(concat(p, [0]))
73 module TileBase(botleft, topright){
74 size = topright - botleft;
75 botleft_post = botleft + thehd_tr;
76 topright_post = topright + thehd_bl;
79 translate(concat(botleft, [0]))
80 cube(concat(size, [tile_th]));
81 translate( concat(botleft_post, [-tile_th])
82 + 0.5 * [ post_dia, post_dia, 0 ] )
83 Commitid_BestCount_M( topright_post-botleft_post
84 + [-post_dia,-post_dia]
89 m4_dnl INREFFRAME(left_cnr, right_cnr, morevars) { body; }
90 m4_define(`INREFFRAME',`
91 length_vec = ($2) - ($1);
92 length = dist2d([0,0], length_vec);
93 length_uvec = length_vec / length;
94 ortho_uvec = [ -length_uvec[1], length_uvec[0] ];
95 m = [ [ length_uvec[0], ortho_uvec[0], 0, ($1)[0], ],
96 [ length_uvec[1], ortho_uvec[1], 0, ($1)[1], ],
103 m4_dnl INREFFRAME(left_cnr, right_cnr, morevars)
104 m4_dnl INREFFRAME_EDGE { body; }
105 m4_define(`INREFFRAME_EDGE',`
106 translate([0,0, -round_edge_rad])
109 module RoundEdge(left_cnr, right_cnr) {
110 INREFFRAME(left_cnr, right_cnr)
114 cylinder(r= round_edge_rad, h= length, $fn=50);
115 translate([-1, 0, -20])
116 cube([length+2, 20, 20]);
121 module RoundLeftCorner(this_cnr, right_cnr) {
122 INREFFRAME(this_cnr, right_cnr) INREFFRAME_EDGE {
124 sphere(r= round_edge_rad, $fn=60);
125 translate([0,0, -20])
131 module InterlockLobePlan(negative) {
132 r = negative ? interlock_negative_rad : interlock_rad;
133 ymir = negative ? 0 : 1;
137 translate([thehd[0], 0]){
141 translate([-dx, -0.1])
142 square([ dx*2, r/2 + 0.1 ]);
144 translate([ xi*dx, r ])
152 module InterlockEdgePlan(negative, nlobes, length) {
153 for (lobei = [ 0 : nlobes-1 ]) {
154 lobex = (length - thehd[0]*2) * (lobei ? lobei / (nlobes-1) : 0);
155 translate([lobex, 0, 0]) {
156 InterlockLobePlan(negative);
160 iadj = interlock_sq_adj;
161 slotshorter = negative ? 0 : interlock_fine_lenslop;
162 mirror([0, negative])
163 translate([slotshorter, iadj])
164 square([length - slotshorter*2, interlock_fine + iadj*2]);
167 module InterlockEdge(left_cnr, right_cnr, negative=0, nlobes=2) {
168 plusth = negative * 1.0;
170 INREFFRAME(left_cnr, right_cnr) {
171 translate([0, 0, plusth]){
173 linear_extrude(height=tile_th+plusth*2, convexity=10){
174 InterlockEdgePlan(negative, nlobes, length);
181 function TestPiece_holes2corners(holes) =
182 [ holes[0] + thehd_bl,
185 holes[0] + thehd_tl ];
187 module TestPiece1(){ ////toplevel
191 corners = TestPiece_holes2corners(holes);
193 TileBase(corners[0], corners[2]);
194 InterlockEdge(corners[1], corners[2], 1, nlobes=1);
197 RoundEdge(corners[0], corners[1]);
198 RoundEdge(corners[3], corners[0]);
199 RoundLeftCorner(corners[0], corners[1]);
202 module TestPiece2(){ ////toplevel
206 corners = TestPiece_holes2corners(holes);
207 TileBase(corners[0], corners[2]);
209 RoundEdge(corners[0], corners[1]);
210 InterlockEdge(corners[3], corners[0], 0, nlobes=1);
213 module TestDemo(){ ////toplevel
214 translate([ -thehd[0], 0 ])
217 translate([ +thehd[0] + demo_slop, 0 ])
221 function Rectangle_corners(c0, sz) =
224 c0 + [ sz[0], sz[1] ],
227 function Rectangle_corners2posts(c) =
233 module Tile02(){ ////toplevel
236 c = Rectangle_corners(c0, sz);
237 posts = Rectangle_corners2posts(c);
239 TileBase(c[0], c[2]);
240 InterlockEdge(c[1], c[2], 1);
243 RoundEdge(c[0], c[1]);
244 RoundEdge(c[3], c[0]);
245 RoundLeftCorner(c[0], c[1]);
246 InterlockEdge(c[2], c[3], 0);
249 module Tile12(){ ////toplevel
252 c = Rectangle_corners(c0, sz);
253 posts = Rectangle_corners2posts(c);
255 TileBase(c[0], c[2]);
256 InterlockEdge(c[0], c[1], 1);
259 RoundEdge(c[2], c[3]);
260 RoundEdge(c[3], c[0]);
261 RoundLeftCorner(c[2], c[3]);
264 module Demo(){ ////toplevel
265 translate(demo_slop*[-2,1]) color("blue") Tile12();
266 translate(demo_slop*[-2,0]) color("red") Tile02();