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authorMichael Krelin <hacker@klever.net>2018-09-06 20:58:54 (UTC)
committer Michael Krelin <hacker@klever.net>2018-09-06 20:58:54 (UTC)
commit1409beae6cdd6520ef037b0d2a083844ce0e0c47 (patch) (unidiff)
treef6a4df48f0f870a3f152db11bf464052b5add237 /another.scad
parent4cc8be3ab27f44d8a298b8df3df0092d1f95e067 (diff)
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-rw-r--r--another.scad37
1 files changed, 32 insertions, 5 deletions
diff --git a/another.scad b/another.scad
index fd73a61..83a4e43 100644
--- a/another.scad
+++ b/another.scad
@@ -328,191 +328,218 @@ module the_extruder(
328 // XXX: this is somewhat ugly and potentially bugged, 328 // XXX: this is somewhat ugly and potentially bugged,
329 // but I want to sleep. 329 // but I want to sleep.
330 a0_ = atan( 330 a0_ = atan(
331 (pf_offset+pf_h(pf)+gearbox_d/2) 331 (pf_offset+pf_h(pf)+gearbox_d/2)
332 / 332 /
333 ( 333 (
334 pulley_d/2+filament_offset- 334 pulley_d/2+filament_offset-
335 (pf_d(pf)+2*pf_shell)/2/cos(30) 335 (pf_d(pf)+2*pf_shell)/2/cos(30)
336 ) 336 )
337 ); 337 );
338 a0 = -135 + ( (a0_>0) ? a0_ : 180+a0_ ); 338 a0 = -135 + ( (a0_>0) ? a0_ : 180+a0_ );
339 a1 = atan((longwing-lever_thickness/2)/(gearbox_d/2)); 339 a1 = atan((longwing-lever_thickness/2)/(gearbox_d/2));
340 translate([0,0,ls_z]) difference() { 340 translate([0,0,ls_z]) difference() {
341 rotate([0,0,-180+a0]) 341 rotate([0,0,-180+a0])
342 rotate_extrude(angle=a1-a0) 342 rotate_extrude(angle=a1-a0)
343 translate([0,-ls_h/2]) 343 translate([0,-ls_h/2])
344 square([sqrt(pow(gearbox_d/2,2)+pow(longwing-lever_thickness/2,2))+1, 344 square([sqrt(pow(gearbox_d/2,2)+pow(longwing-lever_thickness/2,2))+1,
345 ls_h]); 345 ls_h]);
346 translate([-mount_d/2,0,0]) 346 translate([-mount_d/2,0,0])
347 cylinder(d=gearbox_d-mount_d,h=ls_h+2,center=true,$fn=fnd*(gearbox_d-mount_d)); 347 cylinder(d=gearbox_d-mount_d,h=ls_h+2,center=true,$fn=fnd*(gearbox_d-mount_d));
348 }//difference translate 348 }//difference translate
349 349
350 // spring tensioner 350 // spring tensioner
351 translate([-gearbox_d/2,-longwing,ls_z]) rotate([0,-90,0]) { 351 translate([-gearbox_d/2,-longwing,ls_z]) rotate([0,-90,0]) {
352 mirror([0,0,1]) { 352 mirror([0,0,1]) {
353 translate([0,0,st_thickshell]) 353 translate([0,0,st_thickshell])
354 hull() for(o=[0,spring_d]) translate([0,-o,0]) 354 hull() for(o=[0,spring_d]) translate([0,-o,0])
355 rotate([0,0,30]) 355 rotate([0,0,30])
356 cylinder(d=st_nut_d+st_nut_d_tolerance,h=st_nut_h+st_nut_h_tolerance,$fn=6); 356 cylinder(d=st_nut_d+st_nut_d_tolerance,h=st_nut_h+st_nut_h_tolerance,$fn=6);
357 translate([0,0,-1]) cylinder(d=st_screw_d+st_screw_d_tolerance,h=fsw+2,$fn=fnd*(st_screw_d+st_screw_d_tolerance)); 357 translate([0,0,-1]) cylinder(d=st_screw_d+st_screw_d_tolerance,h=fsw+2,$fn=fnd*(st_screw_d+st_screw_d_tolerance));
358 bigd = spring_d+spring_d_clearance; 358 bigd = spring_d+spring_d_clearance;
359 hf = (bigd-st_screw_d-st_screw_d_tolerance)/2; 359 hf = (bigd-st_screw_d-st_screw_d_tolerance)/2;
360 translate([0,0,st_thickshell+st_nut_h+st_nut_h_tolerance+st_thinshell-epsilon]) { 360 translate([0,0,st_thickshell+st_nut_h+st_nut_h_tolerance+st_thinshell-epsilon]) {
361 cylinder(d1=st_screw_d+st_screw_d_tolerance,d2=bigd, 361 cylinder(d1=st_screw_d+st_screw_d_tolerance,d2=bigd,
362 h=hf+epsilon, $fn=fnd*bigd); 362 h=hf+epsilon, $fn=fnd*bigd);
363 translate([0,-(st_split_w+st_split_w_tolerance)/2,0]) hull() { 363 translate([0,-(st_split_w+st_split_w_tolerance)/2,0]) hull() {
364 cube(size=[body_h-ls_z-sp_ch-st_split_w_tolerance,st_split_w+st_split_w_tolerance,fsw+1]); 364 cube(size=[body_h-ls_z-sp_ch-st_split_w_tolerance,st_split_w+st_split_w_tolerance,fsw+1]);
365 translate([0,0,sp_ch+st_split_w_tolerance+1]) 365 translate([0,0,sp_ch+st_split_w_tolerance+1])
366 cube(size=[body_h-ls_z+1,st_split_w+st_split_w_tolerance,fsw+1]); 366 cube(size=[body_h-ls_z+1,st_split_w+st_split_w_tolerance,fsw+1]);
367 } 367 }
368 }//translate 368 }//translate
369 translate([0,0,st_thickshell+st_nut_h+st_nut_h_tolerance+st_thinshell+hf-epsilon]) 369 translate([0,0,st_thickshell+st_nut_h+st_nut_h_tolerance+st_thinshell+hf-epsilon])
370 cylinder(d=bigd,h=fsw+1,$fn=fnd*bigd); 370 cylinder(d=bigd,h=fsw+1,$fn=fnd*bigd);
371 }//mirror 371 }//mirror
372 }//translate 372 }//translate
373 373
374 // label 374 // label
375 body_label(); 375 body_label();
376 // scale
377 body_scale();
376 378
377 }//difference 379 }//difference
378 380
379 }//body module 381 }//body module
382 module body_scale() {
383 scale_thickness = 2*layer_height;
384 nscales = 5;
385 x1 = -gearbox_d/2+fsw-st_h+st_w+st_bump*2-st_bump_tip/2;
386 x0 = -gearbox_d/2+st_thickshell+st_nut_h+st_nut_h_tolerance+st_thinshell+st_split_w+st_split_w_tolerance+st_bump_tip/2;
387 w0 = st_split_w+st_split_w_tolerance+2*(extrusion_width+2*extrusion_width);
388 w1 = 2*(longwing-gearbox_d/2-extrusion_width);
389 translate([0,-longwing,body_h-scale_thickness])
390 difference() {
391 for(x=[x0:(x1-x0)/(nscales-1):x1]) let(w=w0+(w1-w0)*(x-x0)/(x1-x0))
392 translate([x-st_bump_tip/2,-w/2,0])
393 cube(size=[st_bump_tip,w,scale_thickness+epsilon]);
394 let(w=st_split_w+st_split_w_tolerance+extrusion_width)
395 translate([-gearbox_d/2,-w/2,-1])
396 cube(size=[fsw,w,scale_thickness+2]);
397 }
398 }
380 module body_label() { 399 module body_label() {
381 if(body_label) { 400 if(body_label) {
382 label=body_label; 401 label=body_label;
383 label_thickness=body_label_thickness; 402 label_thickness=body_label_thickness;
384 label_len = len(label); 403 label_len = len(label);
385 labelspace = [gearbox_d/2-mount_screwhead_d/2-min_xy_shell,longwing-(mount_screwhead_d-st_split_w-st_split_w_tolerance)/2-2*min_xy_shell]; 404 labelspace = [gearbox_d/2-mount_screwhead_d/2-min_xy_shell,longwing-(mount_screwhead_d-st_split_w-st_split_w_tolerance)/2-2*min_xy_shell];
386 translate([0,0,body_h-label_thickness]) 405 translate([0,0,body_h-label_thickness])
387 linear_extrude(height=label_thickness+epsilon,convexity=64) 406 linear_extrude(height=label_thickness+epsilon,convexity=64)
388 translate([-mount_screwhead_d/2-min_xy_shell-labelspace.x/2,-longwing+(st_split_w+st_split_w_tolerance)/2+min_xy_shell+labelspace.y/2]) 407 translate([-mount_screwhead_d/2-min_xy_shell-labelspace.x/2,-longwing+(st_split_w+st_split_w_tolerance)/2+min_xy_shell+labelspace.y/2])
389 mirror([left?0:1,0]) 408 mirror([left?0:1,0])
390 text(text=label,size=labelspace.x/label_len,halign="center",valign="center",font="Arial Black"); 409 text(text=label,size=labelspace.x/label_len,halign="center",valign="center",font="Arial Black");
391 }else sphere(d=epsilon); // to avoid makefile breakage 410 }else sphere(d=epsilon); // to avoid makefile breakage
392 } 411 }
393 412
394 st_bump = 4*extrusion_width; 413 st_bump = 4*extrusion_width;
395 st_bump_tip = 2*extrusion_width; 414 st_bump_tip = 2*extrusion_width;
415 st_smalld = st_screw_d+st_screw_d_tolerance+min_xy_shell;
416 st_bigd = spring_d+spring_d_clearance/2;
417 st_hf = (st_bigd-st_smalld)/2;
418 st_h = max(st_hf*3,fsw-st_screw_l+st_hf);
419 st_w = sp_ch;
396 module springpad() { 420 module springpad() {
397 smalld=st_screw_d+st_screw_d_tolerance+min_xy_shell; 421 smalld=st_smalld;
398 bigd = spring_d+spring_d_clearance/2; 422 bigd = st_bigd;
399 hf = (bigd-smalld)/2; 423 hf = st_hf;
400 h = max(hf*3,fsw-st_screw_l+hf); 424 h = st_h;
401 translate([-gearbox_d/2+fsw-h,-longwing,filament_elevation]) 425 translate([-gearbox_d/2+fsw-h,-longwing,filament_elevation])
402 rotate([0,90,0]) difference() { 426 rotate([0,90,0]) difference() {
403 union() { 427 union() {
404 cylinder(d1=smalld,d2=bigd,h=hf,$fn=fnd*bigd); 428 cylinder(d1=smalld,d2=bigd,h=hf,$fn=fnd*bigd);
405 translate([0,0,hf-epsilon]) 429 translate([0,0,hf-epsilon])
406 cylinder(d=bigd,h=h-hf,$fn=fnd*bigd); 430 cylinder(d=bigd,h=h-hf,$fn=fnd*bigd);
407 translate([0,0,h]) 431 translate([0,0,h])
408 sphere(d=spring_d*3/4,$fn=fnd*spring_d*3/4); 432 sphere(d=spring_d*3/4,$fn=fnd*spring_d*3/4);
409 l = body_h-ls_z; 433 l = body_h-ls_z;
410 w = sp_ch; 434 w = st_w;
411 translate([0,-st_split_w/2,0]) mirror([1,0,0]) { 435 translate([0,-st_split_w/2,0]) mirror([1,0,0]) {
412 hull() { 436 hull() {
413 translate([0,0,w+st_bump]) 437 translate([0,0,w+st_bump])
414 cube(size=[l+st_bump,st_split_w,w]); 438 cube(size=[l+st_bump,st_split_w,w]);
415 cube(size=[l-w,st_split_w,2*w]); 439 cube(size=[l-w,st_split_w,2*w]);
416 } 440 }
417 translate([l,0,w+st_bump]) hull() { 441 translate([l,0,w+st_bump]) hull() {
418 cube(size=[st_split_w,st_split_w,st_bump]); 442 cube(size=[st_split_w,st_split_w,st_bump]);
419 translate([0,-st_bump+st_bump_tip,st_bump]) mirror([0,0,1]) 443 translate([0,-st_bump+st_bump_tip,st_bump]) mirror([0,0,1])
420 cube(size=[st_split_w,st_split_w+2*(st_bump-st_bump_tip),st_bump_tip]); 444 cube(size=[st_split_w,st_split_w+2*(st_bump-st_bump_tip),st_bump_tip]);
421 } 445 }
422 } 446 }
423 } 447 }
424 translate([0,0,-epsilon]) 448 translate([0,0,-epsilon])
425 cylinder(d=st_screw_d+st_screw_d_tolerance, 449 cylinder(d=st_screw_d+st_screw_d_tolerance,
426 h=min(st_screw_l,fsw-hf)-fsw+h+2*epsilon,$fn=fnd*(st_screw_d+st_screw_d_tolerance)); 450 h=min(st_screw_l,fsw-hf)-fsw+h+2*epsilon,$fn=fnd*(st_screw_d+st_screw_d_tolerance));
427 } 451 }
428 } 452 }
429 453
430 module knob() { 454 module knob() {
431 ch = knob_indent_d/2; 455 ch = knob_indent_d/2;
432 knob_bore_l = body_h-protrusion_h-pulley_elevation-pulley_h-knob_v_clearance; 456 knob_bore_l = body_h-protrusion_h-pulley_elevation-pulley_h-knob_v_clearance;
433 translate([0,0,body_h+epsilon]) { 457 translate([0,0,body_h+epsilon]) {
434 mirror([0,0,1]) translate([0,0,-epsilon]) { 458 mirror([0,0,1]) translate([0,0,-epsilon]) {
435 difference() { 459 difference() {
436 cylinder(d=pulley_d,h=knob_bore_l,$fn=fnd*pulley_d); 460 cylinder(d=pulley_d,h=knob_bore_l,$fn=fnd*pulley_d);
437 translate([0,0,-1]) difference() { 461 translate([0,0,-1]) difference() {
438 cylinder(d=bore_d+knob_bore_d_tolerance,h=knob_bore_l+2); 462 cylinder(d=bore_d+knob_bore_d_tolerance,h=knob_bore_l+2);
439 translate([-bore_d/2-1,bore_dd-bore_d/2+knob_bore_d_tolerance/2,-1]) 463 translate([-bore_d/2-1,bore_dd-bore_d/2+knob_bore_d_tolerance/2,-1])
440 cube([bore_d+2,bore_d/2,knob_bore_l+4]); 464 cube([bore_d+2,bore_d/2,knob_bore_l+4]);
441 } 465 }
442 } 466 }
443 } 467 }
444 difference() { 468 difference() {
445 hull() { 469 hull() {
446 cylinder(d=gearbox_d-2*ch,h=knob_h,$fn=fnd*gearbox_d); 470 cylinder(d=gearbox_d-2*ch,h=knob_h,$fn=fnd*gearbox_d);
447 translate([0,0,ch]) 471 translate([0,0,ch])
448 cylinder(d=gearbox_d,h=knob_h-2*ch,$fn=fnd*gearbox_d); 472 cylinder(d=gearbox_d,h=knob_h-2*ch,$fn=fnd*gearbox_d);
449 } 473 }
450 for(a=[0:360/knob_indents:359]) rotate([0,0,a]) 474 for(a=[0:360/knob_indents:359]) rotate([0,0,a])
451 translate([0,gearbox_d/2,-1]) 475 translate([0,gearbox_d/2,-1])
452 cylinder(d=knob_indent_d,h=knob_h+2,$fn=fnd*knob_indent_d); 476 cylinder(d=knob_indent_d,h=knob_h+2,$fn=fnd*knob_indent_d);
453 translate([0,0,-body_h-epsilon]) knob_label(); 477 translate([0,0,-body_h-epsilon]) knob_label();
454 } 478 }
455 } 479 }
456 }//knob module 480 }//knob module
457 module knob_label() { 481 module knob_label() {
458 if(knob_label) { 482 if(knob_label) {
459 ll = len(knob_label); 483 ll = len(knob_label);
460 lsl = gearbox_d-knob_indent_d; 484 lsl = gearbox_d-knob_indent_d;
461 ts = knob_label_size?knob_label_size:min(lsl/ll,gearbox_d/4); 485 ts = knob_label_size?knob_label_size:min(lsl/ll,gearbox_d/4);
462 translate([0,0,body_h+epsilon+knob_h-knob_label_thickness]) 486 translate([0,0,body_h+epsilon+knob_h-knob_label_thickness])
463 linear_extrude(height=knob_label_thickness+epsilon,convexity=64) 487 linear_extrude(height=knob_label_thickness+epsilon,convexity=64)
464 mirror([left?0:1,0]) 488 mirror([left?0:1,0])
465 text(text=knob_label,size=ts,halign="center",valign="center",font="Arial Black"); 489 text(text=knob_label,size=ts,halign="center",valign="center",font="Arial Black");
466 }else sphere(d=epsilon); // to avoid makefile breakage 490 }else sphere(d=epsilon); // to avoid makefile breakage
467 } 491 }
468 492
469 module debug() { 493 module debug() {
470 difference() { 494 difference() {
471 children(); 495 children();
472 if(debug) { 496 if(debug) {
473 // spring tensioner debug cutout 497 // spring tensioner debug cutout
474 translate([-gearbox_d/2,-longwing,ls_z]) rotate([0,-90,0]) 498 translate([-gearbox_d/2,-longwing,ls_z]) rotate([0,-90,0])
475 translate([0,-lever_thickness/2-1,-gearbox_d-1]) 499 translate([0,-lever_thickness/2-1,-gearbox_d-1])
476 cube(size=[body_h-ls_z+st_bump+1,lever_thickness/2+1,gearbox_d+2]); 500 cube(size=[body_h-ls_z+st_bump+1,lever_thickness/2+1,gearbox_d+2]);
477 // lever axis debug cutout 501 // lever axis debug cutout
478 translate([mount_d/2,0,-1]) 502 translate([mount_d/2,0,-1])
479 rotate([0,0,-45]) 503 rotate([0,0,-45])
480 cube(size=[gearbox_d-mount_d,gearbox_d-mount_d,body_h+knob_h+2]); 504 cube(size=[gearbox_d-mount_d,gearbox_d-mount_d,body_h+knob_h+2]);
481 // idler debug cutout 505 // idler debug cutout
482 translate([0,0,ls_z]) 506 translate([0,0,ls_z])
483 place_idler() 507 place_idler()
484 rotate([0,0,-45]) 508 rotate([0,0,-45])
485 translate([0,0,-lever_thickness/2-epsilon]) 509 translate([0,0,-lever_thickness/2-epsilon])
486 cube(size=[lsd*sqrt(2)/2+1,lsd*sqrt(2)/2+1, 510 cube(size=[lsd*sqrt(2)/2+1,lsd*sqrt(2)/2+1,
487 lever_thickness+2*epsilon]); 511 lever_thickness+2*epsilon]);
488 // pushfit debug cutout 512 // pushfit debug cutout
489 place_idler() 513 place_idler()
490 translate([-idler_d/2+filament_offset,0,ls_z]) 514 translate([-idler_d/2+filament_offset,0,ls_z])
491 cube(size=[gearbox_d/2,gearbox_d/2+pf_h(pf),body_h-ls_z+knob_h+1]); 515 cube(size=[gearbox_d/2,gearbox_d/2+pf_h(pf),body_h-ls_z+knob_h+1]);
492 }//if debug 516 }//if debug
493 }//difference 517 }//difference
494 } 518 }
495 519
496 mirrorleft() 520 mirrorleft()
497 debug() 521 debug()
498 if(what=="lever") color("green",0.7) lever(); 522 if(what=="lever") color("green",0.7) lever();
499 else if(what=="body") color("yellow",0.7) body(); 523 else if(what=="body") color("yellow",0.7) body();
500 else if(what=="body.label") color("brown",0.7) body_label(); 524 else if(what=="body.label") color("brown",0.7) body_label();
525 else if(what=="body.scale") color("brown",0.7) body_scale();
501 else if(what=="knob") color("red",0.7) knob(); 526 else if(what=="knob") color("red",0.7) knob();
502 else if(what=="knob.label") color("brown",0.7) knob_label(); 527 else if(what=="knob.label") color("brown",0.7) knob_label();
503 else if(what=="springpad") color("blue",0.7) springpad(); 528 else if(what=="springpad") color("blue",0.7) springpad();
504 else if(what=="both") { 529 else if(what=="both") {
505 color("green",0.7) lever(); 530 color("green",0.7) lever();
506 color("yellow",0.7) body(); 531 color("yellow",0.7) body();
507 color("brown",0.7) body_label(); 532 color("brown",0.7) body_label();
533 color("brown",0.7) body_scale();
508 }else{ 534 }else{
509 color("green",0.7) lever(); 535 color("green",0.7) lever();
510 color("yellow",0.7) body(); 536 color("yellow",0.7) body();
511 color("brown",0.7) body_label(); 537 color("brown",0.7) body_label();
538 color("brown",0.7) body_scale();
512 color("red",0.7) knob(); 539 color("red",0.7) knob();
513 color("brown",0.7) knob_label(); 540 color("brown",0.7) knob_label();
514 color("blue",0.7) springpad(); 541 color("blue",0.7) springpad();
515 } 542 }
516} 543}
517 544
518the_extruder(what="*",left=false,debug=true); 545the_extruder(what="*",left=false,debug=true);