4 // 3D design for filament spools to hold coils as supplied by Faberdashery
8 // Copyright 2012,2013,2016 Ian Jackson
10 // This work is free software: you can redistribute it and/or modify
11 // it under the terms of the GNU General Public License as published by
12 // the Free Software Foundation, either version 3 of the License, or
13 // (at your option) any later version.
15 // This work is distributed in the hope that it will be useful,
16 // but WITHOUT ANY WARRANTY; without even the implied warranty of
17 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 // GNU General Public License for more details.
20 // You should have received a copy of the GNU General Public License
21 // along with this work. If not, see <http://www.gnu.org/licenses/>
25 // Each spool is a hub with 3 or 4 arms. Each arm has a cup for
26 // holding the filament. The effective diameter can be adjusted by
27 // setting the cup into a different seat in the arm. The cups are
28 // held on with simple clips, so the filement coil can easily be
29 // removed and replaced.
31 // This file (and its includes) can generate:
33 // ===== Heavy duty 4-armed spool for 3mm x 100m coil =====
35 // A heavy duty 4-armed spool suitable for holding a 100m
36 // Faberdashery coil on the spool arm of a Lulzbot TAZ-5.
41 // And print following parts
44 // FilamentCup x 4 (or FilamentCupPair x 2)
45 // CupSecuringClip x 4
47 // You will also need 4 x M4 machine screws and nuts.
49 // This is the default.
51 // ===== Light duty 3-armed spool for 3mm x <=30m coil =====
53 // A light duty 3-armed spool suitable for up to around 30m
54 // of Faberdashery 2.85mm PLA.
59 // (or look in filamentspool-lt.scad).
61 // And print following parts
64 // FilamentCup x 3 (or FilamentCup + FilamentCupPair)
65 // CupSecuringClip x 3
66 // TowerDoveClipPin x 6
68 // When assembling, insert one TowerDoveClipPin from each side,
69 // joining each ArmEnd to the Hub with two TowerDoveClipPins.
70 // Modest force with pliers is good to seat them properly.
72 // (note that the light duty and heavy duty CupSecuringClips
73 // are slightly different)
75 // ===== Notes regarding both the above spools =====
77 // When mounting either spool on the TAZ-5 spool arm, put the `pointy'
78 // end of the hub towards the printer - ie, put put the spool on
79 // `backwards'. This ensures that the spool's arms will clear the
82 // For the above, I generally used the Cura `Standard' PLA profile.
84 // ===== TAZ-5 feed tube adjustment kit =====
86 // With a TAZ-5 I recommend using this kit to improve the feed
91 // And print following parts
92 // FilamentGuideSpacer (ideally, at `high detail')
93 // FilamentGuideArmPrint (optional; `high detail' or `standard')
97 // from Aleph Objects - look here:
98 // http://download.lulzbot.com/TAZ/accessories/tool_heads/version_2/Dual_Extruder_v2/production_parts/stl/
100 // The spacer clips onto the filament guide tube holder arm, on the
101 // inside, with the pointy flanged end towards the filament guide
102 // tube. It stops the filament guide tube angle (and so the
103 // filament's natural pickup location) changing as the print head moves.
105 // The FilamentGuideArm[Print] is a replacement for the arm supplied
106 // with your TAZ-5. It's longer, so that the filament pickup point is
107 // closer to the middle of the coil. Use the t-nut_jig to stop the
108 // T-nuts in the aluminium channel from annoyingly sliding down to the
109 // bottom while you swap out the arm.
111 // (Faberdashery coils, and therefore both the above spools, have a
112 // larger diameter than the flat-walled spools often supplied by other
113 // vendors. And the spools above have individual arms rather than a
114 // continuous disc. If the filament `unhooks' from the arm, it can
115 // pull taught around the hub and stop feeding properly.)
117 // ===== Spool storage arm, for mounting on walls =====
119 // A storage arm suitable for screwing to walls, bookshelves,
120 // etc. (requires non-countersunk M4 screws); will hold two heavy duty
121 // spools each with a 100m coil.
126 // (or look in filamentspool-sm.scad).
128 // And print one of these, according to taste
132 // NB that the `light duty' version of this is shorter and
133 // will only take two `light duty' spools.
135 // For the above, I used the Cura `High detail' PLA profile because
136 // I wanted it pretty, but the `Standard' profile should do fine.
138 // ===== Spools for 1.75mm filament =====
140 // Spool (in many parts) for handing 1.75mm filament, printable
141 // on, and with parts for mounting on, a Reprappro Huxley.
144 fdia=2.85; // or 1.75
145 lightduty=false; // or true
151 function selsz(sm,lt,lg) = fdia < 2 ? sm : lightduty ? lt : lg;
152 function usedove() = selsz(true,true,false);
154 num_arms = selsz(3,3,4);
156 channelslop=selsz(slop,0.75,slop);
159 hubeffrad = selsz(30, 82, 40);
160 hubbigrad = selsz(20, 38, 38);
161 hublwidth = selsz(3, 2.5, 4);
164 hubaxlerad = selsz(5, 28/2, 28/2);
165 totalheightfromtower = 240;
166 axletowerfudgebend = 0;
167 axleaxlefudgebend = 3;
172 prongthick=selsz(5,4,5);
173 prongwidth=selsz(5,4,5);
175 prongribheight=selsz(0,0,4);
178 ratchettoothheight=5;
179 ratchettoothsmoothr=1;
180 ratchettoothslope=0.75;
182 cupwidth=selsz(40,25,50);
183 cupheight=selsz(55,25,55);
185 cupstrong_dx=selsz(0,0,-10);
196 stalklength=selsz(35,25,55);
201 overclipcupnextgap=selsz(20,15,20);
203 hubaxlelen = selsz(25, 62.5, 77.5);
206 overclipsmaller=-2.5;
213 armendwallthick=selsz(2.5, 1.8, 2.5);
214 armendbasethick=selsz(1.2, 1.2, 1.2);
216 numbers_relief = 0.7;
217 numbers_tick_len = 8;
218 numbers_tick_width = 0.75;
219 numbers_tick_linespc = 1.0;
220 numbers_height_allow = 8;
222 axlehorizoffset = 12.5;
223 axlevertheight = 100;
232 washerthinthick = 0.8;
233 washerverythinthick = 0.4;
234 washerrad = hubaxlerad + 7.5;
235 frictionwasherarmwidth = 3;
236 frictionwasherextrapush = 1.0;
238 ratchetpawl=ratchetstep-ratchettooth-bigslop*2;
240 nondove_armhole_x = 32;
241 nondove_armhole_hole = 4 + 0.8;
242 nondove_armhole_support = 7;
243 nondove_armhole_wall = 3.2;
244 nondove_armhole_slop = 0.5;
245 nondove_armhole_slop_x = 0.5;
247 nondove_armbase = nondove_armhole_x + nondove_armhole_hole/2 +
248 nondove_armhole_support;
249 echo(nondove_armbase);
251 include <doveclip.scad>
252 include <cliphook.scad>
253 include <filamentteeth.scad>
254 include <axlepin.scad>
255 include <commitid.scad>
257 hub_clip_baseextend = (hubeffrad - DoveClip_depth()
258 - hubbigrad + hublwidth);
260 real_exteffrad = selsz(exteffrad + hub_clip_baseextend,
261 hubeffrad + DoveClip_depth(),
262 hubeffrad + nondove_armbase);
264 channelwidth = prongthick + channelslop;
265 channeldepth = prongwidth + ratchettoothheight;
266 totalwidth = armendwallthick*2 + channelwidth;
267 totalheight = channeldepth + armendbasethick;
268 stalkwidth = prongwidth + prongstalkxwidth;
272 module ArmEnd(length=armend_length){ ////toplevel
274 translate([ratchettoothsmoothr, channelwidth/2, -armendbasethick]) {
276 DoveClipPairBase(h=doveclipheight);
280 translate([1, -armendwallthick, -armendbasethick])
282 cube([nondove_armbase+1, totalwidth, totalheight]);
283 translate([-nondove_armbase + nondove_armhole_x,
284 -armendwallthick + totalwidth/2,
285 -armendbasethick -1])
286 cylinder(r= nondove_armhole_hole/2, h=totalheight+2, $fn=10);
287 translate([-nondove_armbase, -armendwallthick, -armendbasethick])
289 Commitid_BestCount([nondove_armbase, totalwidth]);
293 for (otherside=[0,1]) {
294 for (circum = [300:100:1500]) {
295 assign(rad = circum / tau)
296 assign(fn = str("filamentspool-number-n",circum,".dxf"))
297 assign(rotateoffset = [0, totalwidth/2, 0])
298 assign(xlen = rad - real_exteffrad) {
299 if (xlen >= numbers_tick_width/2
300 + (otherside ? numbers_height_allow : 0) &&
301 xlen <= length - (otherside ? 0 : numbers_height_allow))
302 translate([xlen, -armendwallthick,
303 -armendbasethick + (totalheight - numbers_tick_len)/2])
304 translate(rotateoffset)
305 rotate([0,0, otherside*180])
306 translate(-rotateoffset){
307 translate([-numbers_tick_width/2, -1, 0])
308 cube([numbers_tick_width, numbers_relief+1, numbers_tick_len]);
309 translate([numbers_tick_width/2 + numbers_tick_linespc,
314 linear_extrude(height= numbers_relief+1)
315 // scale(templatescale)
316 import(file=fn, convexity=100);
325 translate([0, -armendwallthick, -armendbasethick])
326 cube([length, totalwidth, totalheight]);
327 translate([-1, 0, 0])
328 cube([length+1 - ratchettooth, channelwidth, channeldepth+1]);
329 translate([-1, 0, ratchettoothheight])
330 cube([length+2, channelwidth, channeldepth+1]);
332 for (dx = [0 : ratchetstep : length - ratchetstep]) translate([dx,0,0]) {
333 translate([ratchettoothsmoothr+0.5, armendwallthick/2, 0]) minkowski(){
335 cylinder($fn=20, r=ratchettoothsmoothr, h=armendwallthick);
336 multmatrix([ [ 1, 0, ratchettoothslope, 0 ],
340 cube([ratchettooth - ratchettoothsmoothr*2,
341 channelwidth, ratchettoothheight - ratchettoothsmoothr]);
346 translate([0,0, -armendbasethick])
347 Commitid_BestCount_M([length/3, totalwidth]);
352 module FilamentCupHandle(){
353 pawlusewidth = ratchetpawl-ratchettoothsmoothr*2;
355 cube([stalklength, stalkwidth, prongthick]);
356 translate([stalklength, stalkwidth/2, 0])
357 cylinder(r=stalkwidth/2, h=prongthick, $fn=20);
358 translate([ratchettoothsmoothr, stalkwidth, 0]) {
360 cylinder($fn=20,r=ratchettoothsmoothr, h=1);
361 multmatrix([ [ 1, -ratchettoothslope, 0, 0 ],
366 ratchettoothheight - ratchettoothsmoothr,
373 module FilamentCupCup(){
374 for (my=[0,1]) mirror([0,my,0]) {
375 translate([0, cupwidth/2, 0])
376 cube([cupheight + prongwidth, prongwidth, prongthick]);
380 module FilamentCupPositive() {
384 dy = cupwidth/2 + gapy + overclipcupgap;
385 baselen = dy+cupwidth/2;
387 translate([0, dy, 0])
389 cube([prongwidth, baselen+1, prongthick]);
391 translate([cupstrong_dx, prongwidth, 0]) {
392 cube([prongwidth, baselen-prongwidth, prongthick]);
393 for (y = [0, .33, .67, 1])
394 translate([0, (baselen - prongwidth) * y, 0])
395 cube([-cupstrong_dx + 1, prongwidth, prongthick]);
397 if (cupstrong_dx != 0) {
399 translate([-prongwidth*.55, -prongwidth*2.1, 0])
400 cube([prongwidth*(2.65), prongwidth*4.2, prongthick]);
403 translate([0, -0.2, 0])
404 cube([prongribwidth, baselen, prongthick + prongribheight]);
406 if (prongribheight > 0) {
407 translate([-prongwidth, baselen, 0])
408 cube([cupheight/2, prongwidth + prongribheight, prongribwidth]);
411 midrad = cupwidth/2 + prongwidth/2;
413 propshift = stalklength - overclipdepth - prongthick + propxshift;
414 proptaken = propshift;
415 echo(midrad, propshift, proptaken);
417 translate([propshift, -1, 0]) {
418 // something is wrong with the y calculation
423 for (y = [overclipcupgap, overclipcupgap+overclipcupnextgap]) {
424 translate([cupstrong_dx, y + prongwidth, 0])
425 rotate([0,0, 102 + fdia])
426 FilamentTeeth(fdia=fdia, h=teethh);
428 for (x = [-0.3, -1.3]) {
429 translate([cupheight + overclipcupnextgap*x, baselen + prongwidth, 0])
430 rotate([0,0, 12 + fdia])
431 FilamentTeeth(fdia=fdia, h=teethh);
435 module FilamentCup() { ////toplevel
437 FilamentCupPositive();
438 translate([0, -stalkwidth, 0])
439 Commitid_BestCount_M([stalklength - stalkwidth, stalkwidth]);
443 module CupSecuringClipSolid(w,d,h1,h2){
444 rotate([0,-90,0]) translate([0,-h1/2,-w/2]) linear_extrude(height=w) {
445 polygon(points=[[0,0], [d,0], [d,h2], [0,h1]]);
449 module CupSecuringClipSolidSmooth(xrad=0, xdepth=0){
450 hbase = totalheight + prongstalkxwidth - overcliproundr*2;
452 CupSecuringClipSolid(w=totalwidth,
453 d=overclipdepth + xdepth,
454 h1=hbase - overclipsmaller,
455 h2=hbase + overclipbigger);
456 cylinder($fn=20, h=0.01, r=overcliproundr+xrad);
460 module CupSecuringClip(){ ////toplevel
461 wingswidth = wingspoke*2 + overclipthick*2 + overcliproundr*2 + totalwidth;
464 CupSecuringClipSolidSmooth(xrad=overclipthick, xdepth=0);
465 translate([-wingswidth/2, -wingsize/2, 0])
466 cube([wingswidth, wingsize, wingthick]);
467 translate([-wingsize/2, -wingswidth/2, 0])
468 cube([wingsize, wingswidth, wingthick]);
470 translate([0,0,-0.1])
471 CupSecuringClipSolidSmooth(xrad=0, xdepth=0.2);
475 module ArmDoveClipPin(){ ////toplevel
476 DoveClipPin(h=doveclipheight);
479 module TowerDoveClipPin(){ ////toplevel
480 DoveClipPin(h=towercliph/2);
483 module Hub(){ ////toplevel
484 axlerad = hubaxlerad + slop;
485 xmin = axlerad+hublwidth/2;
486 xmax = hubbigrad-hublwidth/2;
487 hole = hubeffrad - hubbigrad - DoveClip_depth() - hublwidth*2;
488 holewidth = DoveClipPairSane_width() - hubstemwidth*2;
489 nondove_allwidth = nondove_armhole_wall*2 + totalwidth;
493 cylinder($fn=60, h=hublthick, r=hubbigrad);
495 cylinder($fn=30, h=hublthick+2, r=(hubbigrad-hublwidth));
497 cylinder(h=hubaxlelen, r=axlerad+hublwidth);
498 for (ang=[0 : 360/num_arms : 359])
502 translate([hubeffrad,0,0])
503 DoveClipPairSane(h=doveclipheight,
504 baseextend = hub_clip_baseextend);
505 if (hole>hublwidth && holewidth > 2) {
506 translate([hubbigrad + hublwidth, -holewidth/2, -1])
507 cube([hole, holewidth, hublthick+2]);
515 cube([hubeffrad + nondove_armhole_x
516 + nondove_armhole_hole/2 + nondove_armhole_support,
518 nondove_armhole_wall + totalheight]);
519 translate([hubeffrad - nondove_armhole_slop_x,
521 + nondove_armhole_wall - nondove_armhole_slop,
522 nondove_armhole_wall])
523 cube([nondove_armhole_x + 50,
524 totalwidth + nondove_armhole_slop*2,
526 translate([hubeffrad + nondove_armhole_x, 0, -20])
527 cylinder(r= nondove_armhole_hole/2, h=50, $fn=10);
531 for (ang = [0 : 180/num_arms : 359])
532 rotate([0,0,ang]) rotate([90,0,0]) {
533 translate([0,0,-hublwidth/2])
534 linear_extrude(height=hublwidth)
535 polygon([[xmin,0.05], [xmax,0.05],
536 [xmax,hublthick-0.2], [xmin, hubaxlelen-0.2]]);
539 translate([0,0,-1]) cylinder($fn=60, h=hubaxlelen+2, r=axlerad);
541 rotate([0,0, selsz(0,0,45)])
542 translate([axlerad+hublwidth,
546 Commitid_BestCount([(hubbigrad-hublwidth) - (axlerad+hublwidth),
548 hublwidth/2 * hubaxlelen/(hubbigrad-axlerad),
553 module ArmExtender(){ ////toplevel
554 DoveClipExtender(length=exteffrad-hubeffrad,
559 module FsAxlePin(){ ////toplevel
560 AxlePin(hubaxlerad, washerrad*2, axlepinrad, axlepintabrad, slop);
563 module Axle(){ ////toplevel
564 pillarswidth = DoveClipPairSane_width(towerclipcount);
566 rotate([0,0, -( axleaxlefudgebend + atan(slop/hubaxlelen) ) ])
567 translate([-axlehorizoffset, -axlevertheight, 0]) {
568 rotate([0,0,-axletowerfudgebend])
570 DoveClipPairSane(h=towercliph, count=towerclipcount, baseextend=3);
571 translate([0, DoveClip_depth(), 0])
573 ExtenderPillars(axlevertheight - DoveClip_depth(),
574 pillarswidth, towercliph,
575 pillarw=towerpillarw);
578 axleclearlen = hubaxlelen + slop*4 + washerthick*2 + axlepadlen;
579 axlerad = hubaxlerad-slop;
580 bump = axlerad * 0.2;
581 shift = axlerad-bump;
585 translate([0, 0, shift]) {
588 translate([-1, 0, 0])
592 h = 1 + axleclearlen + axlepinrad*2 + 2);
593 mirror([1,0,0]) rotate([0,90,0])
594 cylinder(r = axlerad*1.75, h = 3);
597 translate([axlehorizoffset - pillarswidth/2, 0, 0])
600 r = towercliph - shift,
602 translate([-50, -joinbelowallow, -50])
603 cube([100, joinbelowallow+50, 100]);
607 translate([axleclearlen + axlepinrad/2, 0, -25])
608 cylinder(r = axlepinrad + slop, h=50);
611 translate([-50,-50,0]) cube([100,100,100]);
615 module washer(thick){
616 Washer(hubaxlerad, washerrad, thick, slop);
619 module AxleWasher(){ ////toplevel
620 washer(thick=washerthick);
623 module AxleThinWasher(){ ////toplevel
624 washer(thick=washerthinthick);
627 module AxleVeryThinWasher(){ ////toplevel
628 washer(thick=washerverythinthick);
631 module AxleFrictionWasher(){ ////toplevel
633 cylinder(h=washerthick, r=washerrad);
634 translate([0,0,-1]) cylinder(h=washerthick+2, r=hubaxlerad+slop);
637 frarmw = frictionwasherarmwidth;
638 frarmpawlr = hublwidth;
639 frarmpawlpush = slop*4 + frictionwasherextrapush;
640 for (ang=[0,180]) rotate([0,0,ang]) {
641 translate([washerrad-1, -frarmw/2, 0])
642 cube([frarmr - washerrad + 1, frarmw, washerthick]);
644 translate([frarmr - frarmpawlr, -50, 0])
645 cube([frarmpawlr, 100, 50]);
647 cylinder(h = 50, r = frarmpawlpush, $fn=36);
652 module TowerExtender(){ ////toplevel
653 l = totalheightfromtower - axlevertheight;
654 echo("TowerExtender",l);
655 DoveClipExtender(length = l,
656 ha = towercliph, hb = towercliph,
657 counta = towerclipcount, countb = towerclipcount,
658 pillarw = towerpillarw);
661 module FilamentCupPair(){ ////toplevel
663 translate([cupheight + prongthick*3,
666 rotate([0,0,180]) FilamentCup();
669 //----- storarm -----
672 storarm_hookheight = 5;
674 storarm_axleslop = 4;
677 storarm_base_h = 100;
679 storarm_base_mind = 2;
681 storarm_cope_hubaxle_mk1 = true;
683 storarm_screw_hole = 4;
684 storarm_screw_hole_slop = 0.5;
685 storarm_besides_hole = 4;
687 storarm_under_hole = 5;
688 storarm_screw_hole_head = 8.8;
689 storarm_screw_hole_head_slop = 1.5;
693 storarm_axlerad = hubaxlerad - storarm_axleslop;
694 storarm_mainlen = hubaxlelen*2 + storarm_axleslop
695 + (storarm_cope_hubaxle_mk1 ? 10 : 0);
696 storarm_totlen = storarm_mainlen + storarm_hooklen;
698 storarm_mid_off_y = storarm_axlerad;
700 storarm_base_off_y = storarm_mid_off_y + storarm_base_h/2;
702 module StorageArmDiagPartSide(xmin, xmax){
704 yuse = storarm_thick/2;
707 translate([xmin-1, -storarm_axlerad, storarm_thick/2])
709 cylinder(r=storarm_axlerad, h=xsz+2, $fn=60);
710 translate([xmin, -yuse, 0])
711 cube([xsz, yuse, storarm_thick]);
715 module StorageArmDiagPart(xmin, xmax, shear, adjbot){
717 StorageArmDiagPartSide(xmin,xmax);
719 multmatrix([[1,0,0,0],
723 translate([0, -storarm_axlerad*2 + adjbot, 0])
725 StorageArmDiagPartSide(xmin,xmax);
729 module StorageArmBaseTemplate(){
730 square([storarm_base_w, storarm_base_h]);
733 module StorageArmAtMountingHoles(){
734 bes = storarm_besides_hole + storarm_screw_hole;
737 x1 = storarm_base_w-bes;
738 y1 = storarm_base_h - bes;
745 translate([pos[0] - storarm_base_w,
746 pos[1] - storarm_base_off_y, -storarm_base_d])
751 module StorageArmRight(){ ////toplevel
752 shear = storarm_hookheight / (storarm_mainlen/2);
754 StorageArmDiagPart(-1, storarm_mainlen/2+1, shear, 0);
755 StorageArmDiagPart(storarm_mainlen/2-1, storarm_mainlen+1, shear/2,
756 storarm_hookheight/2);
758 translate([0, storarm_hookheight, 0])
759 StorageArmDiagPart(storarm_mainlen, storarm_totlen,
760 shear/2, -storarm_hookheight/2);
765 translate([-storarm_base_d, -storarm_base_off_y, storarm_base_w])
767 linear_extrude(height=storarm_base_mind)
768 StorageArmBaseTemplate();
769 StorageArmDiagPart(-1, 0, shear, 0);
771 StorageArmAtMountingHoles(){
772 cylinder(r= storarm_screw_hole_head/2,
776 StorageArmAtMountingHoles(){
778 cylinder(r= (storarm_screw_hole + storarm_screw_hole_slop)/2 ,
780 translate([0,0,storarm_under_hole])
781 cylinder(r= (storarm_screw_hole_head + storarm_screw_hole_head_slop)/2,
787 module StorageArmLeft(){ ////toplevel
788 mirror([1,0,0]) StorageArmRight();
791 module StorArmHoleTest(){ ////toplevel
792 sz = storarm_screw_hole_head + storarm_besides_hole*2;
795 translate([-50, -storarm_base_off_y, -1])
796 cube([100, sz, sz+1]);
801 //----- filament guide spacer -----
804 guide_armwidth = 10.2;
805 guide_armcorelen = 25.0;
806 guide_clipcirclethick = 10.0;
808 guidefilclip_outerdia = 22.8;
810 guidespacer_armslop = 0.75;
811 guidespacer_armlenslop = 1.05;
813 guidespacer_prongprotrude = 4;
814 guidespacer_thick = 1.6;
818 guidespacer_armdia = guide_armdia + guidespacer_armslop;
819 guidespacer_armwidth = guide_armwidth + guidespacer_armslop;
820 guidespacer_len = guide_armcorelen - guide_clipcirclethick
821 + guidespacer_armlenslop;
823 guidespacer_wingheight = (guidefilclip_outerdia - guidespacer_armdia)/2;
825 module FilamentGuideArmTemplate(extra=0){
827 circle(r= (guidespacer_armdia/2) + extra);
828 square(center=true, [guidespacer_armwidth+extra*2,
829 guidespacer_armdia + extra*2 + 10]);
833 module FilamentGuideSpacerInnerTemplate(){
834 FilamentGuideArmTemplate();
835 translate([0, -guidespacer_armdia/2])
836 square(center=true, [guidespacer_armwidth - guidespacer_prongprotrude,
837 guidespacer_armdia]);
840 module FilamentGuideSpacer(){ ////toplevel
843 linear_extrude(height= guidespacer_len)
844 FilamentGuideArmTemplate(extra= guidespacer_thick);
845 for (angle=[26, 60]) {
848 rotate([0,0,angle]) {
850 for (t=[[0, guidespacer_wingheight],
851 [guidespacer_len-1, -guidespacer_wingheight]])
852 translate([0,0, t[0] + 0.5])
853 cube([guidespacer_thick, guidespacer_armdia + t[1]*2,
863 linear_extrude(height= guidespacer_len+5)
864 FilamentGuideSpacerInnerTemplate();
869 //----- replacement filament guide arm for TAZ-5 -----
871 guidearm_armslop = 0.25;
872 guidearm_armlenslop = 0.25;
874 guidearm_hookprotr = 3;
875 guidearm_hookprotrflat = 1;
876 guidearm_hookslope = 0.3;
878 guidearm_totallen = 60;
880 guidearm_screwplatesz = 12;
881 guidearm_screwplateth = 4;
882 guidearm_screwplatewd = 15;
883 guidearm_screwhole = 5 + 0.5;
885 guidearm_bendlen = 40;
886 guidearm_bendslot = 4.5;
888 guidearm_stopthick = 4;
889 guidearm_protrslop = 1.0;
893 guidearm_armdia = guide_armdia - guidearm_armslop;
894 guidearm_armwidth = guide_armwidth - guidearm_armslop;
895 guidearm_armcorelen = guide_armcorelen + guidearm_armlenslop;
897 guidearm_base_z0 = -(guidearm_totallen - guidearm_armcorelen);
899 guidearm_realbendlen = min(guidearm_bendlen,
900 guidearm_totallen - guidearm_screwplateth - 0.1);
901 guidearm_slopelen = guidearm_hookprotr/guidearm_hookslope;
903 module FilamentGuideArmStop(h){
905 translate([ts * guidearm_hookprotr, 0,0])
906 cylinder(r=guidearm_armdia/2, h, $fn=80);
910 module FilamentGuideArmShaftPositive(){
911 r = guidearm_armdia/2;
913 translate([0,0, guidearm_base_z0+1])
914 cylinder(r=r, h= guidearm_totallen, $fn=80);
915 translate([0,0, guidearm_armcorelen]){
917 FilamentGuideArmStop(guidearm_hookprotrflat);
918 translate([0,0, guidearm_slopelen])
919 cylinder(r=r, h=guidearm_hookprotrflat, $fn=80);
923 FilamentGuideArmStop(guidearm_stopthick);
926 module FilamentGuideArmBase(){
928 (guidearm_screwplatewd - guidearm_armwidth)/2,
931 translate([0,0, guidearm_screwplateth/2])
933 [guidearm_armdia + guidearm_screwplatesz*2,
934 guidearm_screwplatewd,
935 guidearm_screwplateth]);
937 translate([ts * (guidearm_armdia/2 + guidearm_screwplatesz/2),
940 cylinder(r= guidearm_screwhole/2, h=40, $fn=20);
946 module FilamentGuideArm(){ ///toplevel
949 FilamentGuideArmShaftPositive();
950 translate([-guidearm_bendslot/2,
952 -guidearm_realbendlen + guidearm_armcorelen])
953 cube([guidearm_bendslot,
955 guidearm_realbendlen + 100]);
957 for (zx=[ [ 0, guidearm_bendslot ],
958 [ guidearm_armcorelen + guidearm_slopelen,
959 guidearm_hookprotr*2 + guidearm_protrslop ]
961 translate([-zx[1]/2, -50, zx[0]])
962 cube([zx[1], 100, 1]);
969 guidearm_totallen*3]);
971 FilamentGuideArmBase();
974 module FilamentGuideArmPrint(){ ////toplevel
979 module Demo(){ ////toplevel
980 translate([-real_exteffrad,-20,0]) Hub();
982 translate([ratchettooth*2, 30, 0]) FilamentCup();
983 if (selsz(true,false,false)) {
984 translate([-exteffrad + hubeffrad - hub_clip_baseextend, -10, 0])
998 //AxleFrictionWasher();
1000 //StorArmHoleTest();
1001 //FilamentGuideSpacer();
1002 //FilamentGuideArm();
1003 //FilamentGuideArmPrint();