// 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;
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];
// calculated
thehd_bl = -thehd_tr;
thehd_br = -thehd_tl;
-tablet_z_slop = rearcurve_z_slop;
+tablet_z_slop = 0.25;
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];
-
m4_define(`POST_TCROSSSZ',
`2*( tile_hard_edge_hole_dist - test_edge + 1 )')
}
}
+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);
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)
+ ctr = line_intersection_2d(lp1,lp2,lp3,lp4);
+ ctr3 = concat(ctr,[0])
')
module RoundCorner_selector(ci, adj) {
ROUNDCORNER_VARS;
- echo("RCS",l_uvec,ctr);
- union(){
- INREFFRAME(this_cnr, right_cnr) {
- cube(bigr*2 + adj, center=true);
+ 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]);
+ }
+ }
}
- }
- %translate(concat(ctr,[0])) circle(1);
- if(0){
- union(){
- INREFFRAME(this_cnr, right_cnr) {
-// %translate([ -bigr,-bigr,0 ])
-// cube([bigr*2 + adj, bigr*3, bigr*2]);
+ 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]);
+ }
+ }
}
}
- union(){
- INREFFRAME(this_cnr, left_cnr) {
- %translate([ -bigr,-bigr,0 ])
- cube(bigr*2 + adj);
- }
- }}
}
module RoundCornerCut(ci) {
ROUNDCORNER_VARS;
difference(){
RoundCorner_selector(ci, -0.1);
- translate(concat(ctr,[0]))
+ translate(ctr3)
cylinder(center=true, h=20, r= bigr);
}
}
intersection(){
RoundCorner_selector(ci, +0.1);
INREFFRAME_EDGE {
- translate(concat(ctr,[0])){
+ translate(ctr3){
rotate_extrude(convexity=10, $fn=50)
translate([bigr, 0])
difference(){
[ 0, 0]
];
corners = TestPiece_holes2corners(holes);
- rcs = [corners[0], corners[1]];
+ rcs = R_CNR(corners,0);
difference(){
union(){
TileBase(corners[0], corners[2]);
}
}
-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_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,
translate([ tile01_tr[0] - cutout_l_end_x + rearedge_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([ 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_Curves();
+ if (TEST)
+ TestStrapSlots();
}
module MachineEnvelope(){
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);
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);
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);
cnr_posts[2] + [ -sz[0] + rearedge_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();
+ 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 = [-32,-32];
+ sz = [188,113];
+ sz2 = [168,100];
+ 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], [-10,12] ];
+ 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);
//TestPiece2();
//Demo();
-//Machine_Profile();
//Machine_NewRearProfile();
//Machine_NewRearCurve();
+//Machine_NewFrontProfile();
//Machine_Curves();
//Machine();
//FitTest();
~ianmdlvl / reprap-play.git / blobdiff