round_edge_rad = 2.0;
+round_cnr_rad = 10;
+
interlock_dia = 10;
+interlock_fine = 0.66;
+
+interlock_fine_slope = 1.0;
+interlock_fine_lenslop = 1.0;
+
+demo_slop = 0.1;
// calculated
+TEST = false;
+
ply_edge_hole_dist = ply_edge_min + ply_hole_dia/2;
-echo(str("HOLES IN PLY ctr dist from edge = ", ply_edge_hole_dist));
+echo(str("HOLES IN PLY ctr dist from PLY edge = ", ply_edge_hole_dist));
hole_slop = (ply_hole_dia - post_dia)/2;
tile_hard_edge_hole_dist = ply_edge_hole_dist + hole_slop;
+
+echo(str("HOLES IN PLY ctr dist from TILE HARD edge = ",
+ tile_hard_edge_hole_dist));
+
+echo(str("HOLES IN PLY ctr dist from TILE ROUND edge = ",
+ tile_hard_edge_hole_dist + round_edge_rad));
+
thehd = [ tile_hard_edge_hole_dist, tile_hard_edge_hole_dist ];
+thehd_tr = thehd;
+thehd_tl = [ -thehd_tr[0], thehd_tr[1] ];
+thehd_bl = -thehd_tr;
+thehd_br = -thehd_tl;
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(){
cylinder(r= screw_dia/2, h= ply_th, $fn=20);
}
}
+ if (TEST) {
+ tsz = tile_hard_edge_hole_dist - test_edge + 1;
+ translate([0,0, tile_th/2]) {
+ cube([post_dia, tsz*2, tile_th], center=true);
+ cube([tsz*2, post_dia, tile_th], center=true);
+ }
+ }
}
}
module Posts(posts) {
for (p= posts) {
- translate([p[0], p[1], 0])
+ translate(concat(p, [0]))
Post();
}
}
-module TileBase(botleft_post, topright_post){
- botleft = botleft_post - thehd;
- size = topright_post - botleft_post + thehd * 2;
+module TileBase(botleft, topright){
+ size = topright - botleft;
+ botleft_post = botleft + thehd_tr;
+ topright_post = topright + thehd_bl;
difference(){
mirror([0,0,1])
- translate([botleft[0], botleft[1], 0])
- cube([size[0], size[1], tile_th]);
- translate( [ botleft_post[0], botleft_post[1], -tile_th ]
- + 0.5 * [ post_dia, post_dia, 0 ] )
- Commitid_BestCount_M( topright_post-botleft_post
- + [0, thehd[0] ]
- + [-post_dia,-post_dia] );
+ translate(concat(botleft, [0]))
+ cube(concat(size, [tile_th]));
+ if (!TEST) {
+ translate( concat(botleft_post, [ -tile_th ])
+ + 0.5 * [ post_dia, post_dia, 0 ] )
+ Commitid_BestCount_M( topright_post-botleft_post
+ + [-post_dia,-post_dia]
+ + [0, thehd[1]]);
+ }
+ if (TEST) {
+ translate( concat(botleft + [thehd[0], 0], [0]) )
+ Commitid_BestCount([ size[0] - thehd[0]*2, thehd[1] ]);
+ mirror([0,0,1]) {
+ translate(concat(botleft + [test_edge,test_edge], [test_tile_th]))
+ cube(concat(size - [test_edge,test_edge]*2, [tile_th]));
+ translate(concat(botleft_post, [-1]))
+ cube(concat(topright_post-botleft_post, [tile_th+2]));
+ }
+ }
}
}
-m4_dnl INREFFRAME(left_post, right_post, morevars) { body; }
+m4_dnl INREFFRAME(left_cnr, right_cnr, morevars) { body; }
m4_define(`INREFFRAME',`
length_vec = ($2) - ($1);
length = dist2d([0,0], length_vec);
multmatrix(m)
')
-m4_dnl INREFFRAME(left_post, right_post, morevars)
+m4_dnl INREFFRAME(left_cnr, right_cnr, morevars)
m4_dnl INREFFRAME_EDGE { body; }
m4_define(`INREFFRAME_EDGE',`
- translate([-thehd[1], -thehd[0], -round_edge_rad])
+ translate([0,0, -round_edge_rad])
')
-module RoundEdge(left_post, right_post) {
- INREFFRAME(left_post, right_post,
- `tlength = length + thehd[1] * 2;') m4_dnl '
+module RoundEdge(left_cnr, right_cnr) {
+ INREFFRAME(left_cnr, right_cnr)
INREFFRAME_EDGE {
difference(){
rotate([0,90,0])
- cylinder(r= round_edge_rad, h= tlength, $fn=50);
+ cylinder(r= round_edge_rad, h= length, $fn=50);
translate([-1, 0, -20])
- cube([tlength+2, 20, 20]);
+ cube([length+2, 20, 20]);
}
}
}
-module RoundLeftCorner(this_post, right_post) {
- INREFFRAME(this_post, right_post) INREFFRAME_EDGE {
+module RoundCornerCut(ci) {
+ this_cnr = ci[0];
+ right_cnr = ci[1];
+ offr= round_cnr_rad - round_edge_rad;
+ INREFFRAME(this_cnr, right_cnr) INREFFRAME_EDGE {
difference(){
- sphere(r= round_edge_rad, $fn=60);
- translate([0,0, -20])
- cube([20,20,20]);
+ cube(offr*2 - 0.1, center=true);
+ translate([offr, offr, 0])
+ cylinder(center=true, h=20, r= offr);
+ }
+ }
+}
+
+module RoundCornerAdd(ci) {
+ this_cnr = ci[0];
+ right_cnr = ci[1];
+ bigr = round_cnr_rad - round_edge_rad;
+ INREFFRAME(this_cnr, right_cnr) INREFFRAME_EDGE {
+ intersection(){
+ cube(bigr*2 + 0.1, center=true);
+ translate([bigr, bigr, 0])
+ rotate_extrude(convexity=10, $fn=50)
+ translate([bigr, 0])
+ difference(){
+ circle(r= round_edge_rad, $fn=50);
+ mirror([1,1])
+ square([20,20]);
+ }
}
}
}
-module InterlockCore(r, plusth, ymir) {
+module InterlockLobePlan(negative) {
+ r = negative ? interlock_negative_rad : interlock_rad;
+ ymir = negative ? 0 : 1;
+
dx = sqrt(3) * r;
$fn= 80;
- translate([0, -thehd[0], plusth]){
- mirror([0,ymir,0]){
- mirror([0,0,1]){
- linear_extrude(height=tile_th+plusth*2, convexity=10){
- circle(r=r);
- difference(){
- translate([-dx, -0.1])
- square([ dx*2, r/2 + 0.1 ]);
- for (xi = [-1, 1]) {
- translate([ xi*dx, r ])
- circle(r=r);
- }
- }
+ translate([thehd[0], 0]){
+ mirror([0,ymir]){
+ circle(r=r);
+ difference(){
+ translate([-dx, -0.1])
+ square([ dx*2, r/2 + 0.1 ]);
+ for (xi = [-1, 1]) {
+ translate([ xi*dx, r ])
+ circle(r=r);
}
}
}
}
}
-module InterlockNegative(this_post, right_post) {
- INREFFRAME(this_post, right_post)
- InterlockCore(interlock_negative_rad, 1, 0);
+module InterlockEdgePlan(negative, nlobes, length, dosquare=true) {
+ for (lobei = [ 0 : nlobes-1 ]) {
+ lobex = (length - thehd[0]*2) * (lobei ? lobei / (nlobes-1) : 0);
+ translate([lobex, 0, 0]) {
+ InterlockLobePlan(negative);
+ }
+ }
+
+ if (dosquare) {
+ iadj = 0;
+ slotshorter = negative ? -0.1 : interlock_fine_lenslop;
+ mirror([0, negative])
+ translate([slotshorter, iadj])
+ square([length - slotshorter*2, interlock_fine + iadj*2]);
+ }
}
-module Interlock(this_post, right_post) {
- INREFFRAME(this_post, right_post)
- InterlockCore(interlock_rad, 0, 1);
+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;
+
+ negsign = negative ? -1 : +1;
+ yprotr = negsign * protr;
+
+ INREFFRAME(left_cnr, right_cnr) {
+ 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 + negsign*interlock_sq_adj ],
+ [ 0,0, 1, zs0 ],
+ [ 0,0, 0, 1 ] ];
+ multmatrix(m)
+ linear_extrude(height=zsd, convexity=10)
+ InterlockEdgePlan(negative, nlobes, length, !!ysd);
+ }
+ }
}
+function TestPiece_holes2corners(holes) =
+ [ holes[0] + thehd_bl,
+ holes[1] + thehd_br,
+ holes[1] + thehd_tr,
+ holes[0] + thehd_tl ];
+
module TestPiece1(){ ////toplevel
holes = [ [-100, 0],
[ 0, 0]
];
+ corners = TestPiece_holes2corners(holes);
+ rcs = [corners[0], corners[1]];
difference(){
- TileBase(holes[0], holes[1]);
- InterlockNegative(holes[1], holes[1] + [0,1]);
+ union(){
+ TileBase(corners[0], corners[2]);
+ Posts(holes);
+ RoundEdge(corners[0], corners[1]);
+ RoundEdge(corners[3], corners[0]);
+ }
+ InterlockEdge(corners[1], corners[2], 1, nlobes=1);
+ RoundCornerCut(rcs);
}
- Posts(holes);
- RoundEdge(holes[0], holes[1]);
- RoundEdge(holes[0] + [ 0, 0.1 ], holes[0]);
- RoundLeftCorner(holes[0], holes[1]);
+ RoundCornerAdd(rcs);
}
module TestPiece2(){ ////toplevel
holes = [ [ 0, 0],
[ 50, 0]
];
- TileBase(holes[0], holes[1]);
+ corners = TestPiece_holes2corners(holes);
+ TileBase(corners[0], corners[2]);
Posts(holes);
- RoundEdge(holes[0], holes[1]);
- Interlock(holes[0], holes[0] + [0, -1]);
+ RoundEdge(corners[0], corners[1]);
+ InterlockEdge(corners[3], corners[0], 0, nlobes=1);
}
-
-module Demo(){
- translate([ -thehd[1], 0 ])
+
+module TestDemo(){ ////toplevel
+ translate([ -thehd[0], 0 ])
color("blue")
TestPiece1();
- translate([ +thehd[1], 0 ])
+ translate([ +thehd[0] + demo_slop, 0 ])
TestPiece2();
}
+function Rectangle_corners(c0, sz) =
+ [ c0 + [ 0, 0 ],
+ c0 + [ sz[0], 0 ],
+ c0 + [ sz[0], sz[1] ],
+ c0 + [ 0, sz[1] ] ];
+
+function Rectangle_corners2posts(c) =
+ [ c[0] + thehd_tr,
+ c[1] + thehd_tl,
+ c[2] + thehd_bl,
+ c[3] + thehd_br ];
+
+module Tile02(){ ////toplevel
+ sz = [100,170];
+ c0 = -sz;
+ c = Rectangle_corners(c0, sz);
+ posts = Rectangle_corners2posts(c);
+ rcs = [c[0], c[1]];
+ difference(){
+ union(){
+ TileBase(c[0], c[2]);
+ Posts(posts);
+ RoundEdge(c[0], c[1]);
+ RoundEdge(c[3], c[0]);
+ InterlockEdge(c[2], c[3], 0);
+ }
+ InterlockEdge(c[1], c[2], 1);
+ RoundCornerCut(rcs);
+ }
+ RoundCornerAdd(rcs);
+}
+
+module Tile12(){ ////toplevel
+ sz = [100,250];
+ c0 = [-sz[0], 0];
+ c = Rectangle_corners(c0, sz);
+ posts = Rectangle_corners2posts(c);
+ rcs = [c[2], c[3]];
+ difference(){
+ union(){
+ TileBase(c[0], c[2]);
+ RoundEdge(c[2], c[3]);
+ RoundEdge(c[3], c[0]);
+ Posts(posts);
+ }
+ InterlockEdge(c[0], c[1], 1);
+ RoundCornerCut(rcs);
+ }
+ RoundCornerAdd(rcs);
+}
+
+module Demo(){ ////toplevel
+ translate(demo_slop*[-2,1]) color("blue") Tile12();
+ translate(demo_slop*[-2,0]) color("red") Tile02();
+}
+
//TestPiece1();
//TestPiece2();
//Demo();
~ianmdlvl / reprap-play.git / blobdiff