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, 3.0);
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, $fn=10);
287 translate([-nondove_armbase, -armendwallthick, -armendbasethick])
289 Commitid_BestCount([nondove_armbase, totalwidth]);
296 translate([0, -armendwallthick, -armendbasethick])
297 cube([length, totalwidth, totalheight]);
298 translate([-1, 0, 0])
299 cube([length+1 - ratchettooth, channelwidth, channeldepth+1]);
300 translate([-1, 0, ratchettoothheight])
301 cube([length+2, channelwidth, channeldepth+1]);
303 for (dx = [0 : ratchetstep : length - ratchetstep]) translate([dx,0,0]) {
304 translate([ratchettoothsmoothr+0.5, armendwallthick/2, 0]) minkowski(){
306 cylinder($fn=20, r=ratchettoothsmoothr, h=armendwallthick);
307 multmatrix([ [ 1, 0, ratchettoothslope, 0 ],
311 cube([ratchettooth - ratchettoothsmoothr*2,
312 channelwidth, ratchettoothheight - ratchettoothsmoothr]);
317 for (otherside=[0,1]) {
318 for (circum = [300:100:1500]) {
319 assign(rad = circum / tau)
320 assign(fn = str("filamentspool-number-n",circum,".dxf"))
321 assign(rotateoffset = [0, totalwidth/2, 0])
322 assign(xlen = rad - real_exteffrad) {
323 if (xlen >= numbers_tick_width/2
324 + (otherside ? numbers_height_allow : 0) &&
325 xlen <= length - (otherside ? 0 : numbers_height_allow))
326 translate([xlen, -armendwallthick,
327 -armendbasethick + (totalheight - numbers_tick_len)/2])
328 translate(rotateoffset)
329 rotate([0,0, otherside*180])
330 translate(-rotateoffset){
331 translate([-numbers_tick_width/2, -1, 0])
332 cube([numbers_tick_width, numbers_relief+1, numbers_tick_len]);
333 translate([numbers_tick_width/2 + numbers_tick_linespc,
338 linear_extrude(height= numbers_relief+1)
339 // scale(templatescale)
340 import(file=fn, convexity=100);
347 translate([0, -armendwallthick, -armendbasethick])
348 Commitid_BestCount_M([length/3, totalwidth]);
353 module FilamentCupHandle(){
354 pawlusewidth = ratchetpawl-ratchettoothsmoothr*2;
356 cube([stalklength, stalkwidth, prongthick]);
357 translate([stalklength, stalkwidth/2, 0])
358 cylinder(r=stalkwidth/2, h=prongthick, $fn=20);
359 translate([ratchettoothsmoothr, stalkwidth, 0]) {
361 cylinder($fn=20,r=ratchettoothsmoothr, h=1);
362 multmatrix([ [ 1, -ratchettoothslope, 0, 0 ],
367 ratchettoothheight - ratchettoothsmoothr,
374 module FilamentCupCup(){
375 for (my=[0,1]) mirror([0,my,0]) {
376 translate([0, cupwidth/2, 0])
377 cube([cupheight + prongwidth, prongwidth, prongthick]);
381 module FilamentCupPositive() {
385 dy = cupwidth/2 + gapy + overclipcupgap;
386 baselen = dy+cupwidth/2;
388 translate([0, dy, 0])
390 cube([prongwidth, baselen+1, prongthick]);
392 translate([cupstrong_dx, prongwidth, 0]) {
393 cube([prongwidth, baselen-prongwidth, prongthick]);
394 for (y = [0, .33, .67, 1])
395 translate([0, (baselen - prongwidth) * y, 0])
396 cube([-cupstrong_dx + 1, prongwidth, prongthick]);
398 if (cupstrong_dx != 0) {
400 translate([-prongwidth*.55, -prongwidth*2.1, 0])
401 cube([prongwidth*(2.65), prongwidth*4.2, prongthick]);
404 translate([0, -0.2, 0])
405 cube([prongribwidth, baselen, prongthick + prongribheight]);
407 if (prongribheight > 0) {
408 translate([-prongwidth, baselen, 0])
409 cube([cupheight/2, prongwidth + prongribheight, prongribwidth]);
412 midrad = cupwidth/2 + prongwidth/2;
414 propshift = stalklength - overclipdepth - prongthick + propxshift;
415 proptaken = propshift;
416 echo(midrad, propshift, proptaken);
418 translate([propshift, -1, 0]) {
419 // something is wrong with the y calculation
424 for (y = [overclipcupgap, overclipcupgap+overclipcupnextgap]) {
425 translate([cupstrong_dx, y + prongwidth, 0])
426 rotate([0,0, 102 + fdia])
427 FilamentTeeth(fdia=fdia, h=teethh);
429 for (x = [-0.3, -1.3]) {
430 translate([cupheight + overclipcupnextgap*x, baselen + prongwidth, 0])
431 rotate([0,0, 12 + fdia])
432 FilamentTeeth(fdia=fdia, h=teethh);
436 module FilamentCup() { ////toplevel
438 FilamentCupPositive();
439 translate([0, -stalkwidth, 0])
440 Commitid_BestCount_M([stalklength - stalkwidth, stalkwidth]);
444 module CupSecuringClipSolid(w,d,h1,h2){
445 rotate([0,-90,0]) translate([0,-h1/2,-w/2]) linear_extrude(height=w) {
446 polygon(points=[[0,0], [d,0], [d,h2], [0,h1]]);
450 module CupSecuringClipSolidSmooth(xrad=0, xdepth=0){
451 hbase = totalheight + prongstalkxwidth - overcliproundr*2;
453 CupSecuringClipSolid(w=totalwidth,
454 d=overclipdepth + xdepth,
455 h1=hbase - overclipsmaller,
456 h2=hbase + overclipbigger);
457 cylinder($fn=20, h=0.01, r=overcliproundr+xrad);
461 module CupSecuringClip(){ ////toplevel
462 wingswidth = wingspoke*2 + overclipthick*2 + overcliproundr*2 + totalwidth;
465 CupSecuringClipSolidSmooth(xrad=overclipthick, xdepth=0);
466 translate([-wingswidth/2, -wingsize/2, 0])
467 cube([wingswidth, wingsize, wingthick]);
468 translate([-wingsize/2, -wingswidth/2, 0])
469 cube([wingsize, wingswidth, wingthick]);
471 translate([0,0,-0.1])
472 CupSecuringClipSolidSmooth(xrad=0, xdepth=0.2);
476 module ArmDoveClipPin(){ ////toplevel
477 DoveClipPin(h=doveclipheight);
480 module TowerDoveClipPin(){ ////toplevel
481 DoveClipPin(h=towercliph/2);
484 module Hub(){ ////toplevel
485 axlerad = hubaxlerad + slop;
486 xmin = axlerad+hublwidth/2;
487 xmax = hubbigrad-hublwidth/2;
488 hole = hubeffrad - hubbigrad - DoveClip_depth() - hublwidth*2;
489 holewidth = DoveClipPairSane_width() - hubstemwidth*2;
490 nondove_allwidth = nondove_armhole_wall*2 + totalwidth;
494 cylinder($fn=60, h=hublthick, r=hubbigrad);
496 cylinder($fn=30, h=hublthick+2, r=(hubbigrad-hublwidth));
498 cylinder(h=hubaxlelen, r=axlerad+hublwidth);
499 for (ang=[0 : 360/num_arms : 359])
503 translate([hubeffrad,0,0])
504 DoveClipPairSane(h=doveclipheight,
505 baseextend = hub_clip_baseextend);
506 if (hole>hublwidth && holewidth > 2) {
507 translate([hubbigrad + hublwidth, -holewidth/2, -1])
508 cube([hole, holewidth, hublthick+2]);
516 cube([hubeffrad + nondove_armhole_x
517 + nondove_armhole_hole/2 + nondove_armhole_support,
519 nondove_armhole_wall + totalheight]);
520 translate([hubeffrad - nondove_armhole_slop_x,
522 + nondove_armhole_wall - nondove_armhole_slop,
523 nondove_armhole_wall])
524 cube([nondove_armhole_x + 50,
525 totalwidth + nondove_armhole_slop*2,
527 translate([hubeffrad + nondove_armhole_x, 0, -20])
528 cylinder(r= nondove_armhole_hole/2, h=50, $fn=10);
532 for (ang = [0 : 180/num_arms : 359])
533 rotate([0,0,ang]) rotate([90,0,0]) {
534 translate([0,0,-hublwidth/2])
535 linear_extrude(height=hublwidth)
536 polygon([[xmin,0.05], [xmax,0.05],
537 [xmax,hublthick-0.2], [xmin, hubaxlelen-0.2]]);
540 translate([0,0,-1]) cylinder($fn=60, h=hubaxlelen+2, r=axlerad);
542 rotate([0,0, selsz(0,0,45)])
543 translate([axlerad+hublwidth,
547 Commitid_BestCount([(hubbigrad-hublwidth) - (axlerad+hublwidth),
549 hublwidth/2 * hubaxlelen/(hubbigrad-axlerad),
554 module ArmExtender(){ ////toplevel
555 DoveClipExtender(length=exteffrad-hubeffrad,
560 module FsAxlePin(){ ////toplevel
561 AxlePin(hubaxlerad, washerrad*2, axlepinrad, axlepintabrad, slop);
564 module Axle(){ ////toplevel
565 pillarswidth = DoveClipPairSane_width(towerclipcount);
567 rotate([0,0, -( axleaxlefudgebend + atan(slop/hubaxlelen) ) ])
568 translate([-axlehorizoffset, -axlevertheight, 0]) {
569 rotate([0,0,-axletowerfudgebend])
571 DoveClipPairSane(h=towercliph, count=towerclipcount, baseextend=3);
572 translate([0, DoveClip_depth(), 0])
574 ExtenderPillars(axlevertheight - DoveClip_depth(),
575 pillarswidth, towercliph,
576 pillarw=towerpillarw);
579 axleclearlen = hubaxlelen + slop*4 + washerthick*2 + axlepadlen;
580 axlerad = hubaxlerad-slop;
581 bump = axlerad * 0.2;
582 shift = axlerad-bump;
586 translate([0, 0, shift]) {
589 translate([-1, 0, 0])
593 h = 1 + axleclearlen + axlepinrad*2 + 2);
594 mirror([1,0,0]) rotate([0,90,0])
595 cylinder(r = axlerad*1.75, h = 3);
598 translate([axlehorizoffset - pillarswidth/2, 0, 0])
601 r = towercliph - shift,
603 translate([-50, -joinbelowallow, -50])
604 cube([100, joinbelowallow+50, 100]);
608 translate([axleclearlen + axlepinrad/2, 0, -25])
609 cylinder(r = axlepinrad + slop, h=50);
612 translate([-50,-50,0]) cube([100,100,100]);
616 module washer(thick){
617 Washer(hubaxlerad, washerrad, thick, slop);
620 module AxleWasher(){ ////toplevel
621 washer(thick=washerthick);
624 module AxleThinWasher(){ ////toplevel
625 washer(thick=washerthinthick);
628 module AxleVeryThinWasher(){ ////toplevel
629 washer(thick=washerverythinthick);
632 module AxleFrictionWasher(){ ////toplevel
634 cylinder(h=washerthick, r=washerrad);
635 translate([0,0,-1]) cylinder(h=washerthick+2, r=hubaxlerad+slop);
638 frarmw = frictionwasherarmwidth;
639 frarmpawlr = hublwidth;
640 frarmpawlpush = slop*4 + frictionwasherextrapush;
641 for (ang=[0,180]) rotate([0,0,ang]) {
642 translate([washerrad-1, -frarmw/2, 0])
643 cube([frarmr - washerrad + 1, frarmw, washerthick]);
645 translate([frarmr - frarmpawlr, -50, 0])
646 cube([frarmpawlr, 100, 50]);
648 cylinder(h = 50, r = frarmpawlpush, $fn=36);
653 module TowerExtender(){ ////toplevel
654 l = totalheightfromtower - axlevertheight;
655 echo("TowerExtender",l);
656 DoveClipExtender(length = l,
657 ha = towercliph, hb = towercliph,
658 counta = towerclipcount, countb = towerclipcount,
659 pillarw = towerpillarw);
662 module FilamentCupPair(){ ////toplevel
664 translate([cupheight + prongthick*3,
667 rotate([0,0,180]) FilamentCup();
670 //----- storarm -----
673 storarm_hookheight = 5;
675 storarm_axleslop = 4;
678 storarm_base_h = 100;
680 storarm_base_mind = 2;
682 storarm_cope_hubaxle_mk1 = true;
684 storarm_screw_hole = 4;
685 storarm_screw_hole_slop = 0.5;
686 storarm_besides_hole = 4;
688 storarm_under_hole = 5;
689 storarm_screw_hole_head = 8.8;
690 storarm_screw_hole_head_slop = 1.5;
694 storarm_axlerad = hubaxlerad - storarm_axleslop;
695 storarm_mainlen = hubaxlelen*2 + storarm_axleslop
696 + (storarm_cope_hubaxle_mk1 ? 10 : 0);
697 storarm_totlen = storarm_mainlen + storarm_hooklen;
699 storarm_mid_off_y = storarm_axlerad;
701 storarm_base_off_y = storarm_mid_off_y + storarm_base_h/2;
703 module StorageArmDiagPartSide(xmin, xmax){
705 yuse = storarm_thick/2;
708 translate([xmin-1, -storarm_axlerad, storarm_thick/2])
710 cylinder(r=storarm_axlerad, h=xsz+2, $fn=60);
711 translate([xmin, -yuse, 0])
712 cube([xsz, yuse, storarm_thick]);
716 module StorageArmDiagPart(xmin, xmax, shear, adjbot){
718 StorageArmDiagPartSide(xmin,xmax);
720 multmatrix([[1,0,0,0],
724 translate([0, -storarm_axlerad*2 + adjbot, 0])
726 StorageArmDiagPartSide(xmin,xmax);
730 module StorageArmBaseTemplate(){
731 square([storarm_base_w, storarm_base_h]);
734 module StorageArmAtMountingHoles(){
735 bes = storarm_besides_hole + storarm_screw_hole;
738 x1 = storarm_base_w-bes;
739 y1 = storarm_base_h - bes;
746 translate([pos[0] - storarm_base_w,
747 pos[1] - storarm_base_off_y, -storarm_base_d])
752 module StorageArmRight(){ ////toplevel
753 shear = storarm_hookheight / (storarm_mainlen/2);
755 StorageArmDiagPart(-1, storarm_mainlen/2+1, shear, 0);
756 StorageArmDiagPart(storarm_mainlen/2-1, storarm_mainlen+1, shear/2,
757 storarm_hookheight/2);
759 translate([0, storarm_hookheight, 0])
760 StorageArmDiagPart(storarm_mainlen, storarm_totlen,
761 shear/2, -storarm_hookheight/2);
766 translate([-storarm_base_d, -storarm_base_off_y, storarm_base_w])
768 linear_extrude(height=storarm_base_mind)
769 StorageArmBaseTemplate();
770 StorageArmDiagPart(-1, 0, shear, 0);
772 StorageArmAtMountingHoles(){
773 cylinder(r= storarm_screw_hole_head/2,
777 StorageArmAtMountingHoles(){
779 cylinder(r= (storarm_screw_hole + storarm_screw_hole_slop)/2 ,
781 translate([0,0,storarm_under_hole])
782 cylinder(r= (storarm_screw_hole_head + storarm_screw_hole_head_slop)/2,
788 module StorageArmLeft(){ ////toplevel
789 mirror([1,0,0]) StorageArmRight();
792 module StorArmHoleTest(){ ////toplevel
793 sz = storarm_screw_hole_head + storarm_besides_hole*2;
796 translate([-50, -storarm_base_off_y, -1])
797 cube([100, sz, sz+1]);
802 //----- filament guide spacer -----
805 guide_armwidth = 10.2;
806 guide_armcorelen = 25.0;
807 guide_clipcirclethick = 10.0;
809 guidefilclip_outerdia = 22.8;
811 guidespacer_armslop = 0.75;
812 guidespacer_armlenslop = 1.05;
814 guidespacer_prongprotrude = 4;
815 guidespacer_thick = 1.6;
819 guidespacer_armdia = guide_armdia + guidespacer_armslop;
820 guidespacer_armwidth = guide_armwidth + guidespacer_armslop;
821 guidespacer_len = guide_armcorelen - guide_clipcirclethick
822 + guidespacer_armlenslop;
824 guidespacer_wingheight = (guidefilclip_outerdia - guidespacer_armdia)/2;
826 module FilamentGuideArmTemplate(extra=0){
828 circle(r= (guidespacer_armdia/2) + extra);
829 square(center=true, [guidespacer_armwidth+extra*2,
830 guidespacer_armdia + extra*2 + 10]);
834 module FilamentGuideSpacerInnerTemplate(){
835 FilamentGuideArmTemplate();
836 translate([0, -guidespacer_armdia/2])
837 square(center=true, [guidespacer_armwidth - guidespacer_prongprotrude,
838 guidespacer_armdia]);
841 module FilamentGuideSpacer(){ ////toplevel
844 linear_extrude(height= guidespacer_len)
845 FilamentGuideArmTemplate(extra= guidespacer_thick);
846 for (angle=[26, 60]) {
849 rotate([0,0,angle]) {
851 for (t=[[0, guidespacer_wingheight],
852 [guidespacer_len-1, -guidespacer_wingheight]])
853 translate([0,0, t[0] + 0.5])
854 cube([guidespacer_thick, guidespacer_armdia + t[1]*2,
864 linear_extrude(height= guidespacer_len+5)
865 FilamentGuideSpacerInnerTemplate();
870 //----- replacement filament guide arm for TAZ-5 -----
872 guidearm_armslop = 0.25;
873 guidearm_armlenslop = 0.25;
875 guidearm_hookprotr = 3;
876 guidearm_hookprotrflat = 1;
877 guidearm_hookslope = 0.3;
879 guidearm_totallen = 60;
881 guidearm_screwplatesz = 12;
882 guidearm_screwplateth = 4;
883 guidearm_screwplatewd = 15;
884 guidearm_screwhole = 5 + 0.5;
886 guidearm_bendlen = 40;
887 guidearm_bendslot = 4.5;
889 guidearm_stopthick = 4;
890 guidearm_protrslop = 1.0;
894 guidearm_armdia = guide_armdia - guidearm_armslop;
895 guidearm_armwidth = guide_armwidth - guidearm_armslop;
896 guidearm_armcorelen = guide_armcorelen + guidearm_armlenslop;
898 guidearm_base_z0 = -(guidearm_totallen - guidearm_armcorelen);
900 guidearm_realbendlen = min(guidearm_bendlen,
901 guidearm_totallen - guidearm_screwplateth - 0.1);
902 guidearm_slopelen = guidearm_hookprotr/guidearm_hookslope;
904 module FilamentGuideArmStop(h){
906 translate([ts * guidearm_hookprotr, 0,0])
907 cylinder(r=guidearm_armdia/2, h, $fn=80);
911 module FilamentGuideArmShaftPositive(){
912 r = guidearm_armdia/2;
914 translate([0,0, guidearm_base_z0+1])
915 cylinder(r=r, h= guidearm_totallen, $fn=80);
916 translate([0,0, guidearm_armcorelen]){
918 FilamentGuideArmStop(guidearm_hookprotrflat);
919 translate([0,0, guidearm_slopelen])
920 cylinder(r=r, h=guidearm_hookprotrflat, $fn=80);
924 FilamentGuideArmStop(guidearm_stopthick);
927 module FilamentGuideArmBase(){
929 (guidearm_screwplatewd - guidearm_armwidth)/2,
932 translate([0,0, guidearm_screwplateth/2])
934 [guidearm_armdia + guidearm_screwplatesz*2,
935 guidearm_screwplatewd,
936 guidearm_screwplateth]);
938 translate([ts * (guidearm_armdia/2 + guidearm_screwplatesz/2),
941 cylinder(r= guidearm_screwhole/2, h=40, $fn=20);
947 module FilamentGuideArm(){ ///toplevel
950 FilamentGuideArmShaftPositive();
951 translate([-guidearm_bendslot/2,
953 -guidearm_realbendlen + guidearm_armcorelen])
954 cube([guidearm_bendslot,
956 guidearm_realbendlen + 100]);
958 for (zx=[ [ 0, guidearm_bendslot ],
959 [ guidearm_armcorelen + guidearm_slopelen,
960 guidearm_hookprotr*2 + guidearm_protrslop ]
962 translate([-zx[1]/2, -50, zx[0]])
963 cube([zx[1], 100, 1]);
970 guidearm_totallen*3]);
972 FilamentGuideArmBase();
975 module FilamentGuideArmPrint(){ ////toplevel
980 module Demo(){ ////toplevel
981 translate([-real_exteffrad,-20,0]) Hub();
983 translate([ratchettooth*2, 30, 0]) FilamentCup();
984 if (selsz(true,false,false)) {
985 translate([-exteffrad + hubeffrad - hub_clip_baseextend, -10, 0])
999 //AxleFrictionWasher();
1001 //StorArmHoleTest();
1002 //FilamentGuideSpacer();
1003 //FilamentGuideArm();
1004 //FilamentGuideArmPrint();