}
}
+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);
bigr= round_cnr_rad - round_edge_rad;
l_uvec = unitvector2d(left_cnr - this_cnr);
r_uvec = unitvector2d(right_cnr - this_cnr);
- ctr = line_intersection_2d(
- left_cnr - clockwise2d(r_uvec) * round_cnr_rad,
- this_cnr - clockwise2d(r_uvec) * round_cnr_rad,
- this_cnr + clockwise2d(l_uvec) * round_cnr_rad,
- right_cnr + clockwise2d(l_uvec) * round_cnr_rad )
+ 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;
- 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);
- INREFFRAME(this_cnr, right_cnr) INREFFRAME_EDGE {
- translate([bigr, bigr, 0])
- cylinder(center=true, h=20, r= bigr);
- }
+ translate(ctr3)
+ cylinder(center=true, h=20, r= bigr);
}
}
ROUNDCORNER_VARS;
intersection(){
RoundCorner_selector(ci, +0.1);
- INREFFRAME(this_cnr, right_cnr) INREFFRAME_EDGE {
- translate([bigr, bigr, 0])
+ 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]);
}
}
+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);
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 ]){
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];
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_FrontCurve(){ ////toplevel
}
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);
//Machine_Profile();
//Machine_NewRearProfile();
//Machine_NewRearCurve();
+//Machine_NewFrontProfile();
//Machine_Curves();
//Machine();
//FitTest();
~ianmdlvl / reprap-play.git / blobdiff