round_edge_rad = 2.0;
interlock_dia = 10;
+interlock_fine = 0.66;
+
+interlock_fine_slope = 1.0;
+interlock_fine_lenslop = 1.0;
demo_slop = 0.1;
interlock_rad = interlock_dia/2;
interlock_negative_rad = interlock_rad + 0.125;
+interlock_sq_adj = 0.2; // arbitrary
+
module Post(){
mirror([0,0,1]) {
difference(){
InterlockLobePlan(negative);
}
}
+
+ iadj = interlock_sq_adj;
+ slotshorter = negative ? 0 : interlock_fine_lenslop;
+ mirror([0, negative])
+ translate([slotshorter, iadj])
+ square([length - slotshorter*2, interlock_fine + iadj*2]);
}
module InterlockEdge(left_cnr, right_cnr, negative=0, nlobes=2) {
plusth = negative * 1.0;
+ protr = interlock_fine + interlock_sq_adj;
+
+ z2 = -tile_th/2;
+ z1 = -tile_th/2 - protr / interlock_fine_slope;
+ z3 = -tile_th/2 + protr / interlock_fine_slope;
+
+ yprotr = negative ? -protr : protr;
INREFFRAME(left_cnr, right_cnr) {
- translate([0, 0, plusth]){
- mirror([0,0,1]){
- linear_extrude(height=tile_th+plusth*2, convexity=10){
- InterlockEdgePlan(negative, nlobes, length);
- }
- }
+ for (vsect = [ // zs0 zs1 ys0, ys1
+ [ -tile_th-plusth, plusth, 0, 0],
+ [ z1, z2, 0, yprotr],
+ [ z2, z3, yprotr, 0],
+ ]) {
+ zs0 = vsect[0];
+ zs1 = vsect[1];
+ zsd = zs1-zs0;
+ ys0 = vsect[2];
+ ys1 = vsect[3];
+ ysd = ys1-ys0;
+ sl = ysd/zsd;
+ m = [ [ 1,0, 0, 0 ],
+ [ 0,1, -sl, -ys0 ],
+ [ 0,0, 1, zs0 ],
+ [ 0,0, 0, 1 ] ];
+ multmatrix(m)
+ linear_extrude(height=zsd, convexity=10)
+ InterlockEdgePlan(negative, nlobes, length);
}
}
}
posts = Rectangle_corners2posts(c);
difference(){
TileBase(c[0], c[2]);
+ InterlockEdge(c[1], c[2], 1);
}
Posts(posts);
RoundEdge(c[0], c[1]);
RoundEdge(c[3], c[0]);
RoundLeftCorner(c[0], c[1]);
- InterlockEdge(c[2], c[3], 0, 2);
+ InterlockEdge(c[2], c[3], 0);
}
module Tile12(){ ////toplevel
posts = Rectangle_corners2posts(c);
difference(){
TileBase(c[0], c[2]);
+ InterlockEdge(c[0], c[1], 1);
}
Posts(posts);
RoundEdge(c[2], c[3]);