-rw-r--r-- | another.scad | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/another.scad b/another.scad index 05bfab3..49833ec 100644 --- a/another.scad +++ b/another.scad | |||
@@ -46,48 +46,49 @@ module the_extruder( | |||
46 | 46 | ||
47 | pf = pushfit_metal, | 47 | pf = pushfit_metal, |
48 | pf_shell = max(3*layer_height,3*extrusion_width), | 48 | pf_shell = max(3*layer_height,3*extrusion_width), |
49 | 49 | ||
50 | // empty spaces | 50 | // empty spaces |
51 | idler_travel = 3, // how far should idler travel when pressed | 51 | idler_travel = 3, // how far should idler travel when pressed |
52 | idler_clearance=.5, | 52 | idler_clearance=.5, |
53 | pulley_small_d_clearance=.5, | 53 | pulley_small_d_clearance=.5, |
54 | lever_v_clearance=.7, // vertical clearance for the lever | 54 | lever_v_clearance=.7, // vertical clearance for the lever |
55 | spring_d_clearance=1, | 55 | spring_d_clearance=1, |
56 | protrusion_tolerance_h=.5, // horizontal tolerance for the motor protrusion | 56 | protrusion_tolerance_h=.5, // horizontal tolerance for the motor protrusion |
57 | protrusion_tolerance_v=.5, // vertical tolerance for the motor protrusion | 57 | protrusion_tolerance_v=.5, // vertical tolerance for the motor protrusion |
58 | mount_screw_d_tolerance=.4, | 58 | mount_screw_d_tolerance=.4, |
59 | idler_v_tolerance=.5, | 59 | idler_v_tolerance=.5, |
60 | knob_bore_d_tolerance=.8, | 60 | knob_bore_d_tolerance=.8, |
61 | st_nut_h_tolerance=.2, | 61 | st_nut_h_tolerance=.2, |
62 | st_nut_d_tolerance=.2,/* TODO: make it st_nut_w_tolerance */ | 62 | st_nut_d_tolerance=.2,/* TODO: make it st_nut_w_tolerance */ |
63 | st_screw_d_tolerance=.5, | 63 | st_screw_d_tolerance=.5, |
64 | st_split_w_tolerance = .3, | 64 | st_split_w_tolerance = .3, |
65 | 65 | ||
66 | min_z_shell = 4*layer_height, // the very minimal shell thickness along z-axis. | 66 | min_z_shell = 4*layer_height, // the very minimal shell thickness along z-axis. |
67 | min_xy_shell = 2*extrusion_width, | 67 | min_xy_shell = 2*extrusion_width, |
68 | 68 | ||
69 | body_label = "another", body_label_thickness = layer_height, | 69 | body_label = "another", body_label_thickness = layer_height, |
70 | knob_label = "another", knob_label_thickness = 2*layer_height, knob_label_size=undef, | ||
70 | 71 | ||
71 | what="lever", // lever|body|knob|springpad|* | 72 | what="lever", // lever|body|knob|springpad|* |
72 | left=false, | 73 | left=false, |
73 | vitamins = true, | 74 | vitamins = true, |
74 | bridges = true, | 75 | bridges = true, |
75 | debug = false, | 76 | debug = false, |
76 | ) { | 77 | ) { |
77 | fnd = 2*PI; fnr = 2*fnd; | 78 | fnd = 2*PI; fnr = 2*fnd; |
78 | function lu(m,k) = m[search([k],m)[0]][1]; | 79 | function lu(m,k) = m[search([k],m)[0]][1]; |
79 | 80 | ||
80 | pulley_d = lu(pulley,"d"); | 81 | pulley_d = lu(pulley,"d"); |
81 | pulley_h = lu(pulley,"h"); | 82 | pulley_h = lu(pulley,"h"); |
82 | teeth_elevation = lu(pulley,"fe"); | 83 | teeth_elevation = lu(pulley,"fe"); |
83 | filament_offset = lu(pulley,"g")+filament_d/2; | 84 | filament_offset = lu(pulley,"g")+filament_d/2; |
84 | pulley_d_clearance = lu(pulley,"ssrc")*2; | 85 | pulley_d_clearance = lu(pulley,"ssrc")*2; |
85 | 86 | ||
86 | idler_filament_offset = filament_path_d/2; | 87 | idler_filament_offset = filament_path_d/2; |
87 | lever_shell = mount_screwhead_h+0.5; | 88 | lever_shell = mount_screwhead_h+0.5; |
88 | lever_thickness=max(spring_d+spring_d_clearance+layer_height*8,idler_h+idler_v_tolerance+2*lever_shell); | 89 | lever_thickness=max(spring_d+spring_d_clearance+layer_height*8,idler_h+idler_v_tolerance+2*lever_shell); |
89 | lsd = idler_d-idler_clearance*2; // the diameter of lever thingie | 90 | lsd = idler_d-idler_clearance*2; // the diameter of lever thingie |
90 | longwing=(mount_d+mount_screw_d+mount_screw_d_tolerance+spring_d+spring_d_clearance)/2+min_xy_shell; | 91 | longwing=(mount_d+mount_screw_d+mount_screw_d_tolerance+spring_d+spring_d_clearance)/2+min_xy_shell; |
91 | shortwing = let(a=mount_d/2,c=(pulley_d+idler_d)/2/sqrt(2)) | 92 | shortwing = let(a=mount_d/2,c=(pulley_d+idler_d)/2/sqrt(2)) |
92 | sqrt(c*c+pow(a-c,2)); | 93 | sqrt(c*c+pow(a-c,2)); |
93 | longwing_travel = idler_travel*longwing/shortwing; | 94 | longwing_travel = idler_travel*longwing/shortwing; |
@@ -408,75 +409,88 @@ module the_extruder( | |||
408 | 409 | ||
409 | module knob() { | 410 | module knob() { |
410 | ch = knob_indent_d/2; | 411 | ch = knob_indent_d/2; |
411 | knob_bore_l = body_h-protrusion_h-pulley_elevation-pulley_h-knob_v_clearance; | 412 | knob_bore_l = body_h-protrusion_h-pulley_elevation-pulley_h-knob_v_clearance; |
412 | translate([0,0,body_h+epsilon]) { | 413 | translate([0,0,body_h+epsilon]) { |
413 | mirror([0,0,1]) translate([0,0,-epsilon]) { | 414 | mirror([0,0,1]) translate([0,0,-epsilon]) { |
414 | difference() { | 415 | difference() { |
415 | cylinder(d=pulley_d,h=knob_bore_l,$fn=fnd*pulley_d); | 416 | cylinder(d=pulley_d,h=knob_bore_l,$fn=fnd*pulley_d); |
416 | translate([0,0,-1]) difference() { | 417 | translate([0,0,-1]) difference() { |
417 | cylinder(d=bore_d+knob_bore_d_tolerance,h=knob_bore_l+2); | 418 | cylinder(d=bore_d+knob_bore_d_tolerance,h=knob_bore_l+2); |
418 | translate([-bore_d/2-1,bore_dd-bore_d/2+knob_bore_d_tolerance/2,-1]) | 419 | translate([-bore_d/2-1,bore_dd-bore_d/2+knob_bore_d_tolerance/2,-1]) |
419 | cube([bore_d+2,bore_d/2,knob_bore_l+4]); | 420 | cube([bore_d+2,bore_d/2,knob_bore_l+4]); |
420 | } | 421 | } |
421 | } | 422 | } |
422 | } | 423 | } |
423 | difference() { | 424 | difference() { |
424 | hull() { | 425 | hull() { |
425 | cylinder(d=gearbox_d-2*ch,h=knob_h,$fn=fnd*gearbox_d); | 426 | cylinder(d=gearbox_d-2*ch,h=knob_h,$fn=fnd*gearbox_d); |
426 | translate([0,0,ch]) | 427 | translate([0,0,ch]) |
427 | cylinder(d=gearbox_d,h=knob_h-2*ch,$fn=fnd*gearbox_d); | 428 | cylinder(d=gearbox_d,h=knob_h-2*ch,$fn=fnd*gearbox_d); |
428 | } | 429 | } |
429 | for(a=[0:360/knob_indents:359]) rotate([0,0,a]) | 430 | for(a=[0:360/knob_indents:359]) rotate([0,0,a]) |
430 | translate([0,gearbox_d/2,-1]) | 431 | translate([0,gearbox_d/2,-1]) |
431 | cylinder(d=knob_indent_d,h=knob_h+2,$fn=fnd*knob_indent_d); | 432 | cylinder(d=knob_indent_d,h=knob_h+2,$fn=fnd*knob_indent_d); |
433 | translate([0,0,-body_h-epsilon]) knob_label(); | ||
432 | } | 434 | } |
433 | } | 435 | } |
434 | }//knob module | 436 | }//knob module |
437 | module knob_label() { | ||
438 | if(knob_label) { | ||
439 | ll = len(knob_label); | ||
440 | lsl = gearbox_d-knob_indent_d; | ||
441 | ts = knob_label_size?knob_label_size:min(lsl/ll,gearbox_d/4); | ||
442 | translate([0,0,body_h+epsilon+knob_h-knob_label_thickness]) | ||
443 | linear_extrude(height=knob_label_thickness+epsilon,convexity=64) | ||
444 | mirror([left?0:1,0]) | ||
445 | text(text=knob_label,size=ts,halign="center",valign="center",font="Arial Black"); | ||
446 | } | ||
447 | } | ||
435 | 448 | ||
436 | module debug() { | 449 | module debug() { |
437 | difference() { | 450 | difference() { |
438 | children(); | 451 | children(); |
439 | if(debug) { | 452 | if(debug) { |
440 | // spring tensioner debug cutout | 453 | // spring tensioner debug cutout |
441 | translate([-gearbox_d/2,-longwing,ls_z]) rotate([0,-90,0]) | 454 | translate([-gearbox_d/2,-longwing,ls_z]) rotate([0,-90,0]) |
442 | translate([0,-lever_thickness/2-1,-gearbox_d]) | 455 | translate([0,-lever_thickness/2-1,-gearbox_d]) |
443 | cube(size=[body_h/2+1,lever_thickness/2+1,gearbox_d+2]); | 456 | cube(size=[body_h/2+1,lever_thickness/2+1,gearbox_d+2]); |
444 | // lever axis debug cutout | 457 | // lever axis debug cutout |
445 | translate([mount_d/2,0,-1]) | 458 | translate([mount_d/2,0,-1]) |
446 | rotate([0,0,-45]) | 459 | rotate([0,0,-45]) |
447 | cube(size=[gearbox_d-mount_d,gearbox_d-mount_d,body_h+knob_h+2]); | 460 | cube(size=[gearbox_d-mount_d,gearbox_d-mount_d,body_h+knob_h+2]); |
448 | // idler debug cutout | 461 | // idler debug cutout |
449 | translate([0,0,ls_z]) | 462 | translate([0,0,ls_z]) |
450 | place_idler() | 463 | place_idler() |
451 | rotate([0,0,-45]) | 464 | rotate([0,0,-45]) |
452 | translate([0,0,-lever_thickness/2-epsilon]) | 465 | translate([0,0,-lever_thickness/2-epsilon]) |
453 | cube(size=[lsd*sqrt(2)/2+1,lsd*sqrt(2)/2+1, | 466 | cube(size=[lsd*sqrt(2)/2+1,lsd*sqrt(2)/2+1, |
454 | lever_thickness+2*epsilon]); | 467 | lever_thickness+2*epsilon]); |
455 | // pushfit debug cutout | 468 | // pushfit debug cutout |
456 | place_idler() | 469 | place_idler() |
457 | translate([-idler_d/2+filament_offset,0,ls_z]) | 470 | translate([-idler_d/2+filament_offset,0,ls_z]) |
458 | cube(size=[gearbox_d/2,gearbox_d/2+pf_h(pf),body_h-ls_z+knob_h+1]); | 471 | cube(size=[gearbox_d/2,gearbox_d/2+pf_h(pf),body_h-ls_z+knob_h+1]); |
459 | }//if debug | 472 | }//if debug |
460 | }//difference | 473 | }//difference |
461 | } | 474 | } |
462 | 475 | ||
463 | mirrorleft() | 476 | mirrorleft() |
464 | debug() | 477 | debug() |
465 | if(what=="lever") color("green",0.7) lever(); | 478 | if(what=="lever") color("green",0.7) lever(); |
466 | else if(what=="body") color("yellow",0.7) body(); | 479 | else if(what=="body") color("yellow",0.7) body(); |
467 | else if(what=="body.label") color("brown",0.7) body_label(); | 480 | else if(what=="body.label") color("brown",0.7) body_label(); |
468 | else if(what=="knob") color("red",0.7) knob(); | 481 | else if(what=="knob") color("red",0.7) knob(); |
469 | else if(what=="springpad") color("blue",0.7) springpad(); | 482 | else if(what=="springpad") color("blue",0.7) springpad(); |
470 | else if(what=="both") { | 483 | else if(what=="both") { |
471 | color("green",0.7) lever(); | 484 | color("green",0.7) lever(); |
472 | color("yellow",0.7) body(); | 485 | color("yellow",0.7) body(); |
473 | color("brown",0.7) body_label(); | 486 | color("brown",0.7) body_label(); |
474 | }else{ | 487 | }else{ |
475 | color("green",0.7) lever(); | 488 | color("green",0.7) lever(); |
476 | color("yellow",0.7) body(); | 489 | color("yellow",0.7) body(); |
477 | color("red",0.7) knob(); | 490 | color("red",0.7) knob(); |
491 | color("brown",0.7) knob_label(); | ||
478 | color("blue",0.7) springpad(); | 492 | color("blue",0.7) springpad(); |
479 | } | 493 | } |
480 | } | 494 | } |
481 | 495 | ||
482 | the_extruder(what="*",left=false,debug=true); | 496 | the_extruder(what="*",left=false,debug=true); |