round_edge_rad = 2.0;
interlock_dia = 10;
+interlock_fine = 0.66;
+
+interlock_fine_lenslop = 1.0;
+
+demo_slop = 0.1;
// calculated
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(){
}
}
-module InterlockLobePlan(r, ymir) {
+module InterlockLobePlan(negative) {
+ r = negative ? interlock_negative_rad : interlock_rad;
+ ymir = negative ? 0 : 1;
+
dx = sqrt(3) * r;
$fn= 80;
translate([thehd[0], 0]){
- mirror([0,ymir,0]){
+ mirror([0,ymir]){
circle(r=r);
difference(){
translate([-dx, -0.1])
}
}
-module InterlockLobeCore(r, plusth, ymir) {
- translate([0, 0, plusth]){
- mirror([0,0,1]){
- linear_extrude(height=tile_th+plusth*2, convexity=10){
- InterlockLobePlan(r, ymir);
- }
+module InterlockEdgePlan(negative, nlobes, length) {
+ for (lobei = [ 0 : nlobes-1 ]) {
+ lobex = (length - thehd[0]*2) * (lobei ? lobei / (nlobes-1) : 0);
+ translate([lobex, 0, 0]) {
+ 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 InterlockLobe(this_cnr, right_cnr, negative=0) {
- INREFFRAME(this_cnr, right_cnr)
- InterlockLobeCore(negative ? interlock_negative_rad : interlock_rad,
- negative ? 1 : 0,
- negative ? 0 : 1);
+module InterlockEdge(left_cnr, right_cnr, negative=0, nlobes=2) {
+ plusth = negative * 1.0;
+
+ 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);
+ }
+ }
+ }
+ }
}
function TestPiece_holes2corners(holes) =
corners = TestPiece_holes2corners(holes);
difference(){
TileBase(corners[0], corners[2]);
- InterlockLobe(corners[1], corners[2], 1);
+ InterlockEdge(corners[1], corners[2], 1, nlobes=1);
}
Posts(holes);
RoundEdge(corners[0], corners[1]);
TileBase(corners[0], corners[2]);
Posts(holes);
RoundEdge(corners[0], corners[1]);
- InterlockLobe(corners[3], corners[0]);
+ InterlockEdge(corners[3], corners[0], 0, nlobes=1);
}
module TestDemo(){ ////toplevel
translate([ -thehd[0], 0 ])
color("blue")
TestPiece1();
- translate([ +thehd[0], 0 ])
+ translate([ +thehd[0] + demo_slop, 0 ])
TestPiece2();
}
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);
}
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]);
}
module Demo(){ ////toplevel
- color("blue") Tile12();
- color("red") Tile02();
+ translate(demo_slop*[-2,1]) color("blue") Tile12();
+ translate(demo_slop*[-2,0]) color("red") Tile02();
}
//TestPiece1();