-rw-r--r-- | another.scad | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/another.scad b/another.scad index fcd179e..f01e765 100644 --- a/another.scad +++ b/another.scad | |||
@@ -45,54 +45,55 @@ module the_extruder( | |||
45 | idler_screwhead_d=6, idler_screwhead_h=3, | 45 | idler_screwhead_d=6, idler_screwhead_h=3, |
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=.6, | 60 | knob_bore_d_tolerance=.6, |
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 = 2*layer_height, | ||
70 | |||
69 | what="lever", // lever|body|knob|springpad|* | 71 | what="lever", // lever|body|knob|springpad|* |
70 | left=false, | 72 | left=false, |
71 | vitamins = true, | 73 | vitamins = true, |
72 | bridges = true, | 74 | bridges = true, |
73 | debug = false, | 75 | debug = false, |
74 | label = "another" | ||
75 | ) { | 76 | ) { |
76 | fnd = 2*PI; fnr = 2*fnd; | 77 | fnd = 2*PI; fnr = 2*fnd; |
77 | function lu(m,k) = m[search([k],m)[0]][1]; | 78 | function lu(m,k) = m[search([k],m)[0]][1]; |
78 | 79 | ||
79 | pulley_d = lu(pulley,"d"); | 80 | pulley_d = lu(pulley,"d"); |
80 | pulley_h = lu(pulley,"h"); | 81 | pulley_h = lu(pulley,"h"); |
81 | teeth_elevation = lu(pulley,"fe"); | 82 | teeth_elevation = lu(pulley,"fe"); |
82 | filament_offset = lu(pulley,"g")+filament_d/2; | 83 | filament_offset = lu(pulley,"g")+filament_d/2; |
83 | pulley_d_clearance = lu(pulley,"ssrc")*2; | 84 | pulley_d_clearance = lu(pulley,"ssrc")*2; |
84 | 85 | ||
85 | idler_filament_offset = filament_path_d/2; | 86 | idler_filament_offset = filament_path_d/2; |
86 | lever_shell = mount_screwhead_h+0.5; | 87 | lever_shell = mount_screwhead_h+0.5; |
87 | lever_thickness=max(spring_d+spring_d_clearance+layer_height*8,idler_h+idler_v_tolerance+2*lever_shell); | 88 | lever_thickness=max(spring_d+spring_d_clearance+layer_height*8,idler_h+idler_v_tolerance+2*lever_shell); |
88 | lsd = idler_d-idler_clearance*2; // the diameter of lever thingie | 89 | lsd = idler_d-idler_clearance*2; // the diameter of lever thingie |
89 | longwing=(mount_d+mount_screw_d+mount_screw_d_tolerance+spring_d+spring_d_clearance)/2+min_xy_shell; | 90 | longwing=(mount_d+mount_screw_d+mount_screw_d_tolerance+spring_d+spring_d_clearance)/2+min_xy_shell; |
90 | shortwing = let(a=mount_d/2,c=(pulley_d+idler_d)/2/sqrt(2)) | 91 | shortwing = let(a=mount_d/2,c=(pulley_d+idler_d)/2/sqrt(2)) |
91 | sqrt(c*c+pow(a-c,2)); | 92 | sqrt(c*c+pow(a-c,2)); |
92 | longwing_travel = idler_travel*longwing/shortwing; | 93 | longwing_travel = idler_travel*longwing/shortwing; |
93 | h_ = (pulley_d+idler_d)/(2*sqrt(2)); | 94 | h_ = (pulley_d+idler_d)/(2*sqrt(2)); |
94 | ri = sqrt( pow(h_,2) + pow(mount_d/2-h_,2) ); | 95 | ri = sqrt( pow(h_,2) + pow(mount_d/2-h_,2) ); |
95 | spring_dl = idler_travel*longwing/ri; | 96 | spring_dl = idler_travel*longwing/ri; |
96 | // finger and spring support | 97 | // finger and spring support |
97 | fsw = gearbox_d-(gearbox_d-mount_d)/2-max(spring_lc,longwing_travel+(gearbox_d-mount_d)/2); | 98 | fsw = gearbox_d-(gearbox_d-mount_d)/2-max(spring_lc,longwing_travel+(gearbox_d-mount_d)/2); |
98 | 99 | ||
@@ -339,58 +340,58 @@ module the_extruder( | |||
339 | }//difference translate | 340 | }//difference translate |
340 | 341 | ||
341 | // spring tensioner | 342 | // spring tensioner |
342 | translate([-gearbox_d/2,-longwing,ls_z]) rotate([0,-90,0]) { | 343 | translate([-gearbox_d/2,-longwing,ls_z]) rotate([0,-90,0]) { |
343 | mirror([0,0,1]) { | 344 | mirror([0,0,1]) { |
344 | translate([0,0,st_thickshell]) | 345 | translate([0,0,st_thickshell]) |
345 | hull() for(o=[0,spring_d]) translate([0,-o,0]) | 346 | hull() for(o=[0,spring_d]) translate([0,-o,0]) |
346 | rotate([0,0,30]) | 347 | rotate([0,0,30]) |
347 | cylinder(d=st_nut_d+st_nut_d_tolerance,h=st_nut_h+st_nut_h_tolerance,$fn=6); | 348 | cylinder(d=st_nut_d+st_nut_d_tolerance,h=st_nut_h+st_nut_h_tolerance,$fn=6); |
348 | translate([0,0,-1]) cylinder(d=st_screw_d+st_screw_d_tolerance,h=fsw+2,$fn=fnd*(st_screw_d+st_screw_d_tolerance)); | 349 | translate([0,0,-1]) cylinder(d=st_screw_d+st_screw_d_tolerance,h=fsw+2,$fn=fnd*(st_screw_d+st_screw_d_tolerance)); |
349 | bigd = spring_d+spring_d_clearance; | 350 | bigd = spring_d+spring_d_clearance; |
350 | hf = (bigd-st_screw_d-st_screw_d_tolerance)/2; | 351 | hf = (bigd-st_screw_d-st_screw_d_tolerance)/2; |
351 | translate([0,0,st_thickshell+st_nut_h+st_nut_h_tolerance+st_thinshell-epsilon]) { | 352 | translate([0,0,st_thickshell+st_nut_h+st_nut_h_tolerance+st_thinshell-epsilon]) { |
352 | cylinder(d1=st_screw_d+st_screw_d_tolerance,d2=bigd, | 353 | cylinder(d1=st_screw_d+st_screw_d_tolerance,d2=bigd, |
353 | h=hf+epsilon, $fn=fnd*bigd); | 354 | h=hf+epsilon, $fn=fnd*bigd); |
354 | translate([0,-(st_split_w+st_split_w_tolerance)/2,0]) | 355 | translate([0,-(st_split_w+st_split_w_tolerance)/2,0]) |
355 | cube(size=[body_h-ls_z+1,st_split_w+st_split_w_tolerance,fsw+1]); | 356 | cube(size=[body_h-ls_z+1,st_split_w+st_split_w_tolerance,fsw+1]); |
356 | }//translate | 357 | }//translate |
357 | translate([0,0,st_thickshell+st_nut_h+st_nut_h_tolerance+st_thinshell+hf-epsilon]) | 358 | translate([0,0,st_thickshell+st_nut_h+st_nut_h_tolerance+st_thinshell+hf-epsilon]) |
358 | cylinder(d=bigd,h=fsw+1,$fn=fnd*bigd); | 359 | cylinder(d=bigd,h=fsw+1,$fn=fnd*bigd); |
359 | }//mirror | 360 | }//mirror |
360 | }//translate | 361 | }//translate |
361 | 362 | ||
362 | // label | 363 | // label |
363 | label_thickness = 2*layer_height; | 364 | if(body_label) let(label=body_label,label_thickness=body_label_thickness) { |
364 | label_len = len(label); | 365 | label_thickness = 2*layer_height; |
365 | if(label_len) { | 366 | label_len = len(label); |
366 | 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]; | 367 | 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]; |
367 | translate([0,0,body_h-label_thickness]) | 368 | translate([0,0,body_h-label_thickness]) |
368 | linear_extrude(height=label_thickness+epsilon,convexity=64) | 369 | linear_extrude(height=label_thickness+epsilon,convexity=64) |
369 | 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]) | 370 | 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]) |
370 | mirror([left?0:1,0]) | 371 | mirror([left?0:1,0]) |
371 | text(text=label,size=labelspace.x/label_len,halign="center",valign="center",font="Arial Black"); | 372 | text(text=label,size=labelspace.x/label_len,halign="center",valign="center",font="Arial Black"); |
372 | }//if(label_len) | 373 | }//if(body_label) |
373 | 374 | ||
374 | }//difference | 375 | }//difference |
375 | 376 | ||
376 | }//body module | 377 | }//body module |
377 | 378 | ||
378 | module springpad() { | 379 | module springpad() { |
379 | smalld=st_screw_d+st_screw_d_tolerance+min_xy_shell; | 380 | smalld=st_screw_d+st_screw_d_tolerance+min_xy_shell; |
380 | bigd = spring_d+spring_d_clearance/2; | 381 | bigd = spring_d+spring_d_clearance/2; |
381 | hf = (bigd-smalld)/2; | 382 | hf = (bigd-smalld)/2; |
382 | h = hf*3.5; | 383 | h = hf*3.5; |
383 | translate([-gearbox_d/2+st_thickshell+st_nut_h+st_nut_h_tolerance+st_thinshell+1,-longwing,filament_elevation]) | 384 | translate([-gearbox_d/2+st_thickshell+st_nut_h+st_nut_h_tolerance+st_thinshell+1,-longwing,filament_elevation]) |
384 | rotate([0,90,0]) difference() { | 385 | rotate([0,90,0]) difference() { |
385 | union() { | 386 | union() { |
386 | cylinder(d1=smalld,d2=bigd,h=hf,$fn=fnd*bigd); | 387 | cylinder(d1=smalld,d2=bigd,h=hf,$fn=fnd*bigd); |
387 | translate([0,0,hf-epsilon]) | 388 | translate([0,0,hf-epsilon]) |
388 | cylinder(d=bigd,h=h-hf,$fn=fnd*bigd); | 389 | cylinder(d=bigd,h=h-hf,$fn=fnd*bigd); |
389 | translate([0,0,h]) | 390 | translate([0,0,h]) |
390 | sphere(d=spring_d*3/4,$fn=fnd*spring_d*3/4); | 391 | sphere(d=spring_d*3/4,$fn=fnd*spring_d*3/4); |
391 | l = body_h-ls_z; | 392 | l = body_h-ls_z; |
392 | w = st_split_w; | 393 | w = st_split_w; |
393 | hull() translate([0,-st_split_w/2,0]) mirror([1,0,0]) { | 394 | hull() translate([0,-st_split_w/2,0]) mirror([1,0,0]) { |
394 | translate([0,0,w]) | 395 | translate([0,0,w]) |
395 | cube(size=[l,st_split_w,w]); | 396 | cube(size=[l,st_split_w,w]); |
396 | cube(size=[l-w,st_split_w,2*w]); | 397 | cube(size=[l-w,st_split_w,2*w]); |