ply_hole_dia = 15;
ply_edge_min = 10;
+ply_hole_dia_real = 12;
+
tile_th = 3;
post_dia = 8;
demo_slop = 0.1;
+leg_height = 62;
+
+leg_hole_dia = 5 + 0.75;
+leg_big_dia = 37;
+leg_bot_dia = 15;
+leg_top_flat_z = 5;
+leg_top_thick = 10;
+
+leg_midspc_dia = 20;
+leg_bot_thick = 10;
+
+leg_fin_top_w = 5;
+leg_fin_bot_w = 5;
+leg_fin_bot_rad = 30;
+leg_fin_bot_flat_z = 5;
+
+leg_n_fins = 4;
+leg_n_tubules = 4;
+leg_tubule_dia = 4;
+
// cutout
-machine_rear_to_front = 85;
-
-machine_rear_profile = [
- [ - 0, -0.00 ],
- [ - 2, -0.10 ],
- [ - 4, -0.20 ],
- [ - 5, -0.30 ],
- [ - 6, -0.40 ],
- [ - 7, -0.50 ],
- [ - 8, -0.75 ],
- [ - 10, -1.50 ],
- [ - 12, -2.25 ],
- [ - 14, -3.25 ],
- [ - 16, -4.25 ],
- [ - 18, -5.75 ],
- [ - 20, -8.00 ]
- ];
-
-machine_front_profile = [
- [ 128, -3.70, ],
- [ 124, -2.90, ],
- [ 120, -2.45, ],
- [ 116, -2.10, ],
- [ 112, -1.80, ],
- [ 108, -1.55, ],
- [ 104, -1.25, ],
- [ 100, -1.00, ],
- [ 96, -0.80, ],
- [ 92, -0.65, ],
- [ 88, -0.55, ],
- [ 84, -0.50, ]
- ];
+machine_rear_to_front = 84 + 0.25 - 1.4;
cutout_l_end_y_front_slop = 0.5;
cutout_l_end_y_rear_slop = 0.5;
-cutout_l_end_x_slop = 0.25;
cutout_l_end_x = 22;
cutout_l_end_y = machine_rear_to_front;
-cutout_l_end_curve = 1;
+cutout_l_end_new_x_slop = 1.4 - 1.95;
cutout_l_end_y_total = cutout_l_end_y
+ cutout_l_end_y_front_slop + cutout_l_end_y_rear_slop;
tile01_tr = [ 0, 0];
cutout_tile01_y = 170 - 147 + cutout_l_end_y_front_slop;
-cutout_tile11_x = cutout_l_end_x + cutout_l_end_curve;
cutout_tile11_y = cutout_l_end_y_total - cutout_tile01_y;
// front and rear curves
-rearedge_len = 170;
+rearedge_len = 170 + 0.70;
+frontedge_len = 170;
rearcurve_strt_len = 52;
-rearcurve_z_slop = 0.75;
+rearcurve_z_slop = -0.50;
rearcurve_avoid_y = 35;
frontcurve_avoid_y = 70;
frontcurve_z_slop = 0.75;
-frontcurve_strt_len = 60;
-frontcurve_dualcurve_angle = 90 - 65;
+frontcurve_strt_len = 50;
+frontcurve_dualcurve_angle = 30;
+
+teststrapslots_at = [ [ 110, 70 ], [ 110, -35 ],
+ [ 180, 90 ],
+ [ 190, -80 ], // do not change index of this one
+ [ 0, 70 ], [ 0, -35 ],
+ ];
+
+teststrap = [ 3, 5 ];
+teststrap_peg = [7.5, 3.5];
+
+ply_edge_hole_dist_real = 14;
// calculated
TEST = false;
+JIG = false;
ply_edge_hole_dist = ply_edge_min + ply_hole_dia/2;
thehd_bl = -thehd_tr;
thehd_br = -thehd_tl;
-tablet_z_slop = rearcurve_z_slop;
+tablet_z_slop = 1.00;
interlock_rad = interlock_dia/2;
interlock_negative_rad = interlock_rad + 0.125;
interlock_sq_adj = 0.2; // arbitrary
-first_front = machine_front_profile[len(machine_front_profile)-1];
+leg_fin_top_rad = sqrt( pow(leg_big_dia/2,2) -
+ pow(leg_fin_top_w/2,2) );
+
+leg_tubule_pos_rad = leg_big_dia/2 * 0.6;
m4_define(`POST_TCROSSSZ',
`2*( tile_hard_edge_hole_dist - test_edge + 1 )')
module Post(){
mirror([0,0,1]) {
- difference(){
- cylinder(r= post_dia/2, h= tile_th + ply_th - post_shorter);
- translate([0,0, tile_th]) {
- cylinder(r= screw_big_dia/2, h= screw_big_len);
- cylinder(r= screw_dia/2, h= ply_th, $fn=20);
+ if (!JIG) {
+ difference(){
+ cylinder(r= post_dia/2, h= tile_th + ply_th - post_shorter);
+ translate([0,0, tile_th]) {
+ cylinder(r= screw_big_dia/2, h= screw_big_len);
+ cylinder(r= screw_dia/2, h= ply_th, $fn=20);
+ }
}
}
if (TEST) {
cube([POST_TCROSSSZ, post_dia, tile_th], center=true);
}
}
+ if (JIG) {
+ translate([0,0, tile_th/2]) {
+ cube([POST_TCROSSSZ, POST_TCROSSSZ, tile_th], center=true);
+ }
+ }
+ }
+}
+
+module PostHole(){
+ if (JIG) {
+ translate([0,0,-5])
+ cylinder(r= post_dia/2 + jig_post_hole_slop, h=10);
+ translate([0,0, -jig_min_th])
+ cylinder(r= ply_hole_dia_real/2, h = 5);
+ for (rot=[0:90:270]) rotate(rot) {
+ translate([ ply_edge_hole_dist_real, 0, 0 ])
+ cube([ jig_pencil_rad*2, jig_pencil_slotlen, 20 ], center=true);
+ }
}
}
Post();
}
}
+module PostHoles(posts) {
+ for (p= posts) {
+ translate(concat(p, [0]))
+ PostHole();
+ }
+}
module TileBase(botleft, topright){
size = topright - botleft;
mirror([0,0,1])
translate(concat(botleft, [0]))
cube(concat(size, [tile_th]));
- if (!TEST) {
+ if (!(TEST || JIG)) {
cidsz = topright_post-botleft_post
+ [-post_dia,-post_dia]
+ [0, thehd[1]];
+ 0.5 * concat( cidsz - cidszr, [ 0 ]) )
Commitid_BestCount_M(cidszr);
}
- if (TEST) {
+ if ((TEST || JIG)) {
crossoff = tile_hard_edge_hole_dist + POST_TCROSSSZ/2;
cidsz = [ thehd[0], size[1] - 2*crossoff ];
cidszr = [ cidsz[0], min(cidsz[1], 50) ];
- translate( concat(botleft + [0, crossoff] + (cidsz-cidszr)/2, [0]) )
- Commitid_BestCount(cidszr);
+ if (TEST)
+ translate( concat(botleft + [0, crossoff] + (cidsz-cidszr)/2, [0]) )
+ Commitid_BestCount(cidszr);
difference(){
mirror([0,0,1]) {
translate(concat(botleft + [test_edge,test_edge], [test_tile_th]))
- cube(concat(size - [test_edge,test_edge]*2, [tile_th]));
+ cube(concat(size - [test_edge,test_edge]*2, [tile_th*2]));
translate(concat(botleft_post, [-1]))
cube(concat(topright_post-botleft_post, [tile_th+2]));
}
MachineEnvelope();
cube(shufflesz, center=true);
}
+ if (JIG) {
+ translate([0,0,-20]) linear_extrude(height=20) {
+ for (diag=[[ +1, botleft ],
+ [ -1, [topright[0], botleft[1]] ]]) {
+ translate(diag[1])
+ rotate(atan2(size[1], diag[0] * size[0]))
+ translate([0, -test_edge/2])
+ square([vectorlen2d(size), test_edge]);
+ }
+ }
+ }
}
}
}
}
+m4_dnl R_EDGE(c,ix)
+m4_dnl c is from Rectangle_corners and
+m4_dnl ix is a corner number
+m4_dnl expands to two comma-separated corners:
+m4_dnl that denoted by ix, and the next one anticlockwise
+m4_define(`R_EDGE',`$1[$2], $1[(($2)+1)%4]')
+
+m4_dnl R_CNR(c,ix)
+m4_dnl c is from Rectangle_corners and
+m4_dnl ix is a corner number
+m4_dnl expands to an array of corners as for RoundCorner
+m4_define(`R_CNR',`[ $1[$2], $1[(($2)+1)%4], $1[(($2)+3)%4] ]')
+
m4_dnl INREFFRAME(left_cnr, right_cnr, morevars) { body; }
m4_define(`INREFFRAME',`
length_vec = ($2) - ($1);
}
}
-module RoundCornerCut(ci) {
- // ci should be [this_cnr, right_cnr, left_cnr]
- // where right_cnr is to the right (ie, anticlockwise)
+m4_define(`ROUNDCORNER_VARS',`
this_cnr = ci[0];
right_cnr = ci[1];
left_cnr = ci[2];
- offr= round_cnr_rad - round_edge_rad;
- INREFFRAME(this_cnr, right_cnr) INREFFRAME_EDGE {
- difference(){
- cube(offr*2 - 0.1, center=true);
- translate([offr, offr, 0])
- cylinder(center=true, h=20, r= offr);
+ bigr= round_cnr_rad - round_edge_rad;
+ l_uvec = unitvector2d(left_cnr - this_cnr);
+ r_uvec = unitvector2d(right_cnr - this_cnr);
+ lp1 = left_cnr + clockwise2d(l_uvec) * bigr;
+ lp2 = this_cnr + clockwise2d(l_uvec) * bigr;
+ lp3 = this_cnr - clockwise2d(r_uvec) * bigr;
+ lp4 = right_cnr - clockwise2d(r_uvec) * bigr;
+ ctr = line_intersection_2d(lp1,lp2,lp3,lp4);
+ ctr3 = concat(ctr,[0])
+')
+
+module RoundCorner_selector(ci, adj) {
+ ROUNDCORNER_VARS;
+ intersection(){
+ union(){
+ INREFFRAME(ctr3,concat(lp1,[4])){
+ translate([0,0,-bigr]) linear_extrude(height=bigr*2) {
+ translate([-bigr*2 + adj, -bigr])
+ square([bigr*2, bigr*3]);
+ }
+ }
+ }
+ union(){
+ INREFFRAME(ctr3,concat(lp4,[0])){
+ translate([0,0,-bigr]) linear_extrude(height=bigr*2) {
+ translate([-bigr*2, -bigr*2])
+ square([bigr*2 + adj, bigr*3]);
+ }
+ }
}
}
}
+module RoundCornerCut(ci) {
+ // ci should be [this_cnr, right_cnr, left_cnr]
+ // where right_cnr is to the right (ie, anticlockwise)
+ ROUNDCORNER_VARS;
+ difference(){
+ RoundCorner_selector(ci, -0.1);
+ translate(ctr3)
+ cylinder(center=true, h=20, r= bigr);
+ }
+}
+
module RoundCornerAdd(ci) {
- this_cnr = ci[0];
- right_cnr = ci[1];
- left_cnr = ci[2];
- 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])
+ ROUNDCORNER_VARS;
+ intersection(){
+ RoundCorner_selector(ci, +0.1);
+ INREFFRAME_EDGE {
+ translate(ctr3){
rotate_extrude(convexity=10, $fn=50)
- translate([bigr, 0])
- difference(){
+ translate([bigr, 0])
+ difference(){
circle(r= round_edge_rad, $fn=50);
mirror([1,1])
square([20,20]);
- }
+ }
+ }
}
}
}
[ 0, 0]
];
corners = TestPiece_holes2corners(holes);
- rcs = [corners[0], corners[1]];
+ rcs = R_CNR(corners,0);
difference(){
union(){
TileBase(corners[0], corners[2]);
}
InterlockEdge(corners[1], corners[2], 1, nlobes=1);
RoundCornerCut(rcs);
+ PostHoles(holes);
}
RoundCornerAdd(rcs);
}
[ 50, 0]
];
corners = TestPiece_holes2corners(holes);
- TileBase(corners[0], corners[2]);
- Posts(holes);
- RoundEdge(corners[0], corners[1]);
- InterlockEdge(corners[3], corners[0], 0, nlobes=1);
+ difference(){
+ union(){
+ TileBase(corners[0], corners[2]);
+ Posts(holes);
+ RoundEdge(corners[0], corners[1]);
+ InterlockEdge(corners[3], corners[0], 0, nlobes=1);
+ }
+ PostHoles(holes);
+ }
}
module TestDemo(){ ////toplevel
TestPiece2();
}
-module Machine_Arm(){
- ysz = cutout_l_end_y_total;
- // assume the round end is arc of a circle
- chordlen = dist2d([0,0], [ cutout_l_end_y, cutout_l_end_curve ]);
- endrad = cutout_l_end_y / cutout_l_end_curve * chordlen;
-
- translate([0,0,-30]) linear_extrude(height=60) {
- translate(tile01_tr + [0, (-cutout_tile01_y + cutout_tile11_y)/2]) {
- intersection(){
- translate([-50, -ysz/2])
- square([400, ysz]);
- translate([ endrad - cutout_tile11_x - cutout_l_end_x_slop, 0 ])
- circle(r=endrad, $fa=0.01,$fd=5);
- }
- }
- }
-}
-
-module Machine_Profile(){
- first_rear = machine_rear_profile[0];
- below_point = 0.5 * ( first_rear + first_front ) + [ 0, -10 ];
- pol = concat( machine_rear_profile,
- [ below_point ],
- machine_front_profile);
- skew_angle = atan2( first_front[1] - first_rear[1],
- first_front[0] - first_rear[0] );
- //echo(below_point, pol, skew_angle);
- hull(){
- for (z=[0,-40]) {
- translate([0,z]) {
- //scale([1,5])
- rotate([0,0, -skew_angle ]){
- //translate( - first_front )
- polygon(pol);
- }
- }
- }
- }
-}
-
module Machine_NewRearProfile(){
// figures copied out of xfig edit boxes
// best not to edit the posbox size if poss - just move it
}
}
+module Machine_NewFrontProfile(){
+ // figures copied out of xfig edit boxes
+ // best not to edit the posbox size if poss - just move it
+ posbox = 10 * ([11.8022,8.0600] - [4.2044,19.1867]); // box, Green
+ refline = 10 * ([7.6778,16.7222] - [27.8689,17.6578]); // line, Blue
+ refline_mm = (11-1)*10;
+ sh = -[abs(posbox[0]), abs(posbox[1])];
+ rot = atan2(-refline[0], refline[1]);
+ sc = refline_mm / vectorlen2d(refline);
+ //echo("SH",sh,rot,sc);
+ mirror([1,0]) scale(sc) rotate(rot+90) translate(sh){
+ import("sewing-table-front-profile.dxf", convexity=10); // spline, Pink3
+ }
+}
+
+module Machine_NewEndProfile(){
+ // figures copied out of xfig edit boxes
+ // NB that y coords are reversed - xfig origin is at bottom left
+ posboxs = 10 * [[4.0400,17.7956], [11.6622,32.5511]]; // box, Pink3
+ refline = 10 * ([8.4000,22.6000] - [50.3000,22.2000]); // line, Blue
+ refline_mm = 10 * (11 - 2.5);
+ sidelines = 10 * [[[9.0889,20.6178], [8.9644,14.6889]],
+ [[50.3800,21.9578], [50.1933,14.4933]]]; // lines, Blue3
+ baseline = 10 * [[8.4000,18.0822], [50.3000,17.6822]]; // line, Green2
+
+ rot_adj = -0.38;
+
+ posbox = [min(posboxs[0][0],posboxs[1][0]),
+ max(posboxs[0][1],posboxs[1][1])];
+
+ m4_define(`MNEP_ELP',
+ `line_intersection_2d(baseline[0],baseline[1],
+ sidelines[$1][0],sidelines[$1][1])')
+ endline = [MNEP_ELP(0),MNEP_ELP(1)];
+
+ rot = atan2(-refline[1], -refline[0]);
+ sc = refline_mm / vectorlen2d(refline);
+ sh = (0.5 * (endline[0] + endline[1])) - posbox;
+
+ ellen = sc * dist2d(endline[0],endline[1]);
+ scy = cutout_l_end_y_total / ellen;
+
+ scale([scy,1]) scale(sc) rotate(rot + rot_adj) translate(-[sh[0],-sh[1]]){
+
+ mirror([0,1]){
+ //%translate(1 * (posboxs[0] - posbox)) square(50);
+ //%translate(1 * (posboxs[1] - posbox)) square(50);
+// %translate(1 * (baseline[0] - posbox)) square([50,10]);
+
+// %translate(1 * (endline[0] - posbox)) square([50,10]);
+// %translate(1 * (endline[1] - posbox)) square([50,10]);
+
+// %translate(1 * (sidelines[0][0] - posbox)) square([10,50]);
+// %translate(1 * (sidelines[0][1] - posbox)) square([10,50]);
+// %translate(1 * (sidelines[1][0] - posbox)) square([10,50]);
+// %translate(1 * (sidelines[1][1] - posbox)) square([10,50]);
+ }
+
+ import("sewing-table-end-profile.dxf", convexity=10); // spline, Pink3
+ }
+}
+
+module Machine_NewEndProfileDemo(){ ////toplevel
+ translate([0,5,0]) Machine_NewEndProfile();
+ translate([0,5,1]) color("blue") mirror([1,0]) Machine_NewEndProfile();
+ mirror([0,1,0]){
+ translate([0,5, 0]) Machine_NewEndProfile();
+ translate([0,5,-1]) color("blue") mirror([1,0]) Machine_NewEndProfile();
+ }
+}
+
+module Machine_NewArm(){
+ translate([0,0,-30]) linear_extrude(height=60) {
+ translate(tile01_tr + [ -cutout_l_end_x - cutout_l_end_new_x_slop,
+ (-cutout_tile01_y + cutout_tile11_y)/2 ]){
+ rotate(-90){
+ hull(){
+ for (d=[0,400])
+ translate([0,d]) Machine_NewEndProfile();
+ }
+ }
+ }
+ }
+}
+
module Machine_NewRearCurve(){
slant = atan2(4,210-10);
//echo("SL",slant);
}
}
-module Machine_RearProfile(){ ////toplevel
- intersection(){
- Machine_Profile();
- translate([ -200 + machine_rear_to_front/2, -100 ]) {
- square([200,200]);
- }
- }
-}
-
-module Machine_FrontProfile(){
- intersection(){
- Machine_Profile();
- translate([ machine_rear_to_front/2, -100 ]) {
- square([200,200]);
- }
- }
-}
-
module Machine_Curves(){ ////toplevel
translate([ tile01_tr[0] - cutout_l_end_x + rearedge_len,
cutout_tile11_y,
reartablet_y+1,
20 ]);
}
- translate([ tile01_tr[0] - cutout_l_end_x + rearedge_len,
+ translate([ tile01_tr[0] - cutout_l_end_x + frontedge_len,
cutout_tile11_y,
frontcurve_z_slop ]){
- translate([ 0, -first_front[0] , 0 ])
+ translate([0, -machine_rear_to_front, 0])
multmatrix([[1, -frontcurve_side_skew, 0, 0],
[0, 1, 0, 0],
[0, 0, 1, 0],
[0, 0, 0, 1]])
- translate([ 0, first_front[0] , 0 ])
- mirror([1,0,0]){
- rotate([0,-90,0])rotate([0,0,-90]){
- linear_extrude(height= 200)
- Machine_FrontProfile();
- }
- }
+ mirror([1,0,0]) rotate([0,-90,0])rotate([0,0,-90])
+ linear_extrude(height= 200)
+ Machine_NewFrontProfile();
+ }
+ translate([ tile01_tr[0] - cutout_l_end_x + rearedge_len,
+ cutout_tile11_y,
+ frontcurve_z_slop ]){
translate([ rearcurve_strt_len,
0,
rearcurve_z_slop ]){
}
}
+module TestStrapSlots(){
+ pegwidth = teststrap_peg[0];
+ for (pos = teststrapslots_at) {
+ echo("TSS",pos);
+ translate(concat(pos,[0]))
+ for (mx = [0,1]) mirror([mx,0,0]) {
+ translate([ pegwidth/2, -teststrap[1]/2, -20 ])
+ cube(concat(teststrap,[40]));
+ }
+ }
+}
+
+module TestStrapPeg_any(l){ cube(concat([l],teststrap_peg)); }
+
+module TestStrapPeg_Short(){ ////toplevel
+ TestStrapPeg_any(35);
+}
+
+module TestStrapPeg_Long(){ ////toplevel
+ TestStrapPeg_any(60);
+}
+
module Machine(){ ////toplevel
- Machine_Arm();
+ Machine_NewArm();
Machine_Curves();
+ if (TEST)
+ TestStrapSlots();
}
module MachineEnvelope(){
// used for testing
- p_arm_bl = [-cutout_tile11_x, -cutout_tile01_y];
+ p_arm_bl = [-cutout_l_end_x, -cutout_tile01_y];
y_arm_t = cutout_tile11_y;
- p_crv_fl = p_arm_bl + [rearedge_len, -frontcurve_avoid_y];
+ p_crv_fl = p_arm_bl + [frontedge_len, -frontcurve_avoid_y];
y_crv_b = y_arm_t + rearcurve_avoid_y;
translate([0,0,-50]) linear_extrude(height= 100){
}
}
+module Leg(){ ////toplevel
+ difference(){
+ union(){
+ hull(){
+ mirror([0,0,1])
+ cylinder(r= leg_big_dia/2, height=leg_top_flat_z, $fn=100);
+ translate([0,0, -leg_top_thick])
+ cylinder(r= leg_bot_dia/2, height=1, $fn=100);
+ }
+ for (rot=[0: 360/leg_n_fins : 359]) rotate(rot) {
+ hull(){
+ mirror([0,0,1]) translate([0, -leg_fin_top_w/2, 0])
+ cube([ leg_fin_top_rad - 0.1,
+ leg_fin_top_w,
+ 1 ])
+ ;
+ translate([0, -leg_fin_bot_w/2, -leg_height])
+ cube([ leg_fin_bot_rad,
+ leg_fin_bot_w,
+ leg_fin_bot_flat_z ]);
+ }
+ }
+ }
+ mirror([0,0,1]) translate([0,0,-1])
+ cylinder(r= leg_hole_dia/2, h=leg_height+2, $fn=30);
+ mirror([0,0,1]) translate([0,0,leg_top_thick - 0.1])
+ cylinder(r= leg_midspc_dia/2,
+ h=leg_height - leg_top_thick - leg_bot_thick,
+ $fn=30);
+ for (rot=[45: 360/leg_n_tubules : 359]) rotate(rot) {
+ mirror([0,0,1]) translate([ leg_tubule_pos_rad, 0, -1])
+ cylinder(r= leg_tubule_dia/2, h=leg_height+2, $fn=20);
+ }
+ }
+}
+
function Rectangle_corners(c0, sz) =
// returns the corners of a rectangle from c0 to c0+sz
// if sz is positive, the corners are anticlockwise starting with c0
function Posts_interpolate_one(c0,c1) = [c0, (c0+c1)/2, c1];
-m4_dnl R_EDGE(c,ix)
-m4_dnl c is from Rectangle_corners and
-m4_dnl ix is a corner number
-m4_dnl expands to two comma-separated corners:
-m4_dnl that denoted by ix, and the next one anticlockwise
-m4_define(`R_EDGE',`$1[$2],$1[(($2)+1)%4]')
-
-module FitTest_general(c0,sz, dobrace=false){
- c = Rectangle_corners(c0, sz);
- brace = [7,7,9];
- difference(){
- union(){
- Rectangle_TileBase(c);
- if (dobrace) {
- translate(concat(c0, [-brace[2] + 0.1])){
- difference(){
- cube(concat(sz,[brace[2]]) - [5,0,0]);
- translate(brace + [0,0, -25])
- cube(concat(sz, [50]) - brace*2 + [10,0,0]);
- }
- }
- }
- RoundEdge(R_EDGE(c,1));
- }
- Machine();
- }
-}
-
-module FitTest_Entire(){ ////toplevel
- FitTest_general([-40,-80], [275,180], dobrace=true);
-}
-
-module FitTest_RearCurve(){ ////toplevel
- FitTest_general([110,0], [170,100]);
-}
-
module Tile02(){ ////toplevel
sz = [100,170];
c0 = tile02_tr + -sz;
c = Rectangle_corners(c0, sz);
posts = Rectangle_corners2posts(c);
- rcs = [R_EDGE(c,0)];
+ rcs = R_CNR(c,0);
difference(){
union(){
Rectangle_TileBase(c);
}
InterlockEdge(R_EDGE(c,1), 1);
RoundCornerCut(rcs);
+ PostHoles(posts);
}
RoundCornerAdd(rcs);
}
c0 = tile02_tr + [-sz[0], 0];
c = Rectangle_corners(c0, sz);
posts = Rectangle_corners2posts(c);
- rcs = [R_EDGE(c,3)];
+ rcs = R_CNR(c,3);
difference(){
union(){
Rectangle_TileBase(c);
InterlockEdge(R_EDGE(c,0), 1);
InterlockEdge(R_EDGE(c,1), 1);
RoundCornerCut(rcs);
+ PostHoles(posts);
}
RoundCornerAdd(rcs);
}
-tile_01_11_cnr = tile01_tr + [-cutout_tile11_x, 0];
+tile_01_11_cnr = tile01_tr + [-cutout_l_end_x, 0];
tile_11_10_cnr = tile01_tr + [0, cutout_tile11_y];
tile_01_00_cnr = tile01_tr - [0, cutout_tile01_y];
cnr_posts = Rectangle_corners2posts(c);
posts = concat(
Posts_interpolate_one(cnr_posts[0],
- cnr_posts[1] - [cutout_tile11_x, 0]),
+ cnr_posts[1] - [cutout_l_end_x, 0]),
[ cnr_posts[1] + [0, cutout_tile11_y],
cnr_posts[2],
cnr_posts[3]
}
InterlockEdge(c[0], tile_01_11_cnr, 1);
InterlockEdge(tile_11_10_cnr, c[2], 1);
+ PostHoles(posts);
Machine();
}
}
posts = concat(
Posts_interpolate_one(R_EDGE(cnr_posts,0)),
[ cnr_posts[2] + [0, -cutout_tile01_y] ],
- Posts_interpolate_one(cnr_posts[2] - [cutout_tile11_x, 0],
+ Posts_interpolate_one(cnr_posts[2] - [cutout_l_end_x, 0],
cnr_posts[3])
);
difference(){
InterlockEdge(tile_01_11_cnr, c[3]);
InterlockEdge(R_EDGE(c,3));
}
+ PostHoles(posts);
InterlockEdge(c[1], tile_01_00_cnr, 1);
Machine();
}
cnr_posts[1] + [ 0, rcy ],
cnr_posts[2],
cnr_posts[3] ];
- rcs = [R_EDGE(c,2)];
+ rcs = R_CNR(c,2);
difference(){
union(){
Rectangle_TileBase(c);
RoundEdge(R_EDGE(c,2));
InterlockEdge(c[3], tile_11_10_cnr);
}
+ PostHoles(posts);
RoundCornerCut(rcs);
Machine();
}
c = Rectangle_corners(c0, sz);
// the edge c[1]..c[2] needs a diagonal chunk, from c1bis to c2bis
- c2bis = [ -cutout_l_end_x + rearedge_len + frontcurve_strt_len, c[2][1] ];
+ c2bis = [ -cutout_l_end_x + frontedge_len + frontcurve_strt_len, c[2][1] ];
c1bis = [ c[1][0],
c[2][1] -
(c[2][0] - c2bis[0]) * tan(90 - frontcurve_dualcurve_angle) ];
rcy = cty + frontcurve_avoid_y;
posts = [ cnr_posts[0],
cnr_posts[1],
+ 0.5 * (cnr_posts[0] + cnr_posts[1]),
cnr_posts[2] + [ 0, -rcy ],
- cnr_posts[2] + [ -sz[0] + rearedge_len - cutout_l_end_x, -cty ],
+ cnr_posts[2] + [ -sz[0] + frontedge_len - cutout_l_end_x, -cty ],
cnr_posts[3] + [ 0, -cty ]
];
- rcs = [R_EDGE(c,1)];
+ rcs = R_CNR(c,1);
+ rc2 = [c1bis,c2bis,c[1]];
difference(){
union(){
difference(){
RoundEdge(c1bis, c2bis);
}
Machine();
+ PostHoles(posts);
+ RoundCornerCut(rc2);
}
RoundCornerAdd(rcs);
- RoundCornerAdd([c1bis,c2bis,c[1]]);
+ RoundCornerAdd(rc2);
+}
+
+module FitTest_general(c0,sz, dobrace=false, bracexx=0){
+ c = Rectangle_corners(c0, sz);
+ brace = [7,7,9];
+ bsz = sz + [bracexx,0,0];
+ difference(){
+ union(){
+ Rectangle_TileBase(c);
+ if (dobrace) {
+ translate(concat(c0, [-brace[2] + 0.1])){
+ difference(){
+ cube(concat(bsz, [brace[2]]) - [5,0,0]);
+ translate(brace + [0,0, -25])
+ cube(concat(bsz, [50]) - brace*2 + [10,0,0]);
+ }
+ }
+ }
+ RoundEdge(R_EDGE(c,1));
+ }
+ Machine();
+ }
+}
+
+module FitTest_PairLink(cut=false){ ////toplevel
+ cy0=-55; cy1=85; cx=132;
+ bar = [10,10];
+ legrad = 12;
+ footrad_min = 1; footrad_max = 4; footrad_depth = 5;
+ strap = [3,5];
+ adj_neg_slop = 1.0;
+ bar_z_slop = 1.75;
+
+ // calculated
+ straphole_x_max = legrad/sqrt(2) + footrad_max;
+ dz = cut ? adj_neg_slop : 0;
+
+ translate([cx - bar[0]/2, cy0, dz + bar_z_slop])
+ cube([bar[0], cy1-cy0, bar[1] - bar_z_slop]);
+
+ for (endy=[cy0,cy1]) {
+ $fn=32;
+ translate([cx,endy,dz]){
+ // feet
+ for (rot=[45:90:315]) rotate(rot) {
+ translate([legrad,0,0]){
+ hull(){
+ cylinder(r= footrad_max, h=1);
+ translate([0,0,-footrad_depth])
+ cylinder(r= footrad_min, h=1);
+ }
+ if (cut)
+ translate([0,0,-10])
+ cylinder(r= footrad_min +
+ adj_neg_slop * (footrad_max-footrad_min)/footrad_depth,
+ h=20);
+ }
+ }
+ // legs
+ for (rot=[45,135]) rotate(rot) {
+ hull(){
+ for (s=[-1,+1]){
+ translate([s*legrad,0,0])
+ cylinder(r= footrad_max, h=bar[1]);
+ }
+ }
+ }
+ // strap holes
+ if (cut) {
+ for (rot=[0,180]) rotate(rot) {
+ translate([ straphole_x_max - strap[0]/2, 0,0 ])
+ cube(concat(strap,[20]), center=true);
+ }
+ }
+ }
+ }
+}
+
+module FitTest_RearCurve(){ ////toplevel
+ difference(){
+ FitTest_general([100,0], [180,100]);
+ FitTest_PairLink(true);
+ TestStrapSlots();
+ }
}
module FitTest_FrontCurve(){ ////toplevel
- p0 = [110,-80];
- sz = [170,80];
- intersection() {
- Tile00();
- translate([0,0,-8]) linear_extrude(height=18) {
- translate(p0) square(sz);
+ p0 = [100,-80];
+ sz = [180,80];
+ difference(){
+ intersection() {
+ Tile00();
+ translate([0,0,-8]) linear_extrude(height=18) {
+ translate(p0) square(sz);
+ translate(teststrapslots_at[3])
+ scale(2* [ teststrap_peg[0], teststrap[1] ])
+ circle(r=1, $fn=20);
+ }
+ }
+ FitTest_PairLink(true);
+ TestStrapSlots();
+ }
+}
+
+module FitTest_Entire(){ ////toplevel
+ p0 = [-33,-80];
+ szrear = [263,180];
+ szfront = [243,szrear[1]];
+ difference(){
+ FitTest_general(p0, szrear, dobrace=true, bracexx=0);
+ FitTest_PairLink(true);
+ translate(concat(p0,[0]) + [szfront[0],-10,-40])
+ cube([100, -p0[1], 80]);
+ TestStrapSlots();
+ }
+ intersection(){
+ FitTest_RearCurve();
+ translate(concat(p0,[-20])) cube(concat(szrear,[40]));
+ }
+ FitTest_FrontCurve();
+}
+
+module FitTest_EntireDemo(){ ////toplevel
+ FitTest_Entire();
+ //%Tile00();
+}
+
+module FitTest_EndEnd(){ ////toplevel
+ p0 = [-30,-32];
+ sz = [156,81] - p0;
+ sz2 = [136,68] - p0;
+ difference(){
+ FitTest_general(p0, sz);
+ translate([ p0[0] -1, p0[1]+sz2[1], -10])
+ cube([ sz2[0] +1, 50, 20 ]);
+ }
+}
+
+module FitTest_PairDemo(){ ////toplevel
+ sh=[-90,-15,0];
+ translate(sh){
+ FitTest_PairLink();
+ %FitTest_FrontCurve();
+ %FitTest_RearCurve();
+ }
+ rotate([0,0,180]){
+ translate(sh){
+ difference(){
+ union(){
+ FitTest_FrontCurve();
+ FitTest_RearCurve();
+ }
+ #FitTest_PairLink(true);
+ }
}
}
}
}
module RoundCornerDemo(){ ////toplevel
- cnr = [ [0,0], [15,0], [-10,10] ];
+ cnr = [ [-2,-3], [13,-3], [-12,9] ];
translate([0,25,0]) RoundCornerDemo_plat(cnr);
translate([25,0,0]) RoundCornerAdd(cnr);
translate([-25,0,0]) RoundCornerCut(cnr);
+ translate([0,-25,0]) RoundCorner_selector(cnr, 0);
difference(){
RoundCornerDemo_plat(cnr);
RoundCornerCut(cnr);
translate(demo_slop*[-3,1]) color("blue") Tile10();
translate(demo_slop*[-3,0]) color("red") Tile00();
%Machine();
+ // Can also do this, to print reference sheet:
+ // load this into openscad
+ // select Ctrl-4 view, view all, scale appropriately
+ // import sewing-table,Demo-flat.png
+ // pngtopnm <sewing-table,Demo-flat.png | ppmbrighten -s -50 -v +100 >t.pnm
+ // lpr t.pnm
}
//TestPiece1();
//TestPiece2();
//Demo();
-//Machine_Profile();
//Machine_NewRearProfile();
//Machine_NewRearCurve();
+//Machine_NewFrontProfile();
+//Machine_NewEndProfile();
+//Machine_NewEndProfileDemo();
//Machine_Curves();
//Machine();
//FitTest();
~ianmdlvl / reprap-play.git / blobdiff