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 // ===== Light duty 3-armed spool for 3mm x <=30m coil =====
51 // A light duty 3-armed spool suitable for up to around 30m
52 // of Faberdashery 2.85mm PLA.
57 // And print following parts
60 // FilamentCup x 3 (or FilamentCup + FilamentCupPair)
61 // CupSecuringClip x 3
62 // TowerDoveClipPin x 6
64 // When assembling, insert one TowerDoveClipPin from each side,
65 // joining each ArmEnd to the Hub with two TowerDoveClipPins.
66 // Modest force with pliers is good to seat them properly.
68 // (note that the light duty and heavy duty CupSecuringClips
69 // are slightly different)
71 // ===== Notes regarding both the above spools =====
73 // When mounting either spool on the TAZ-5 spool arm, put the `pointy'
74 // end of the hub towards the printer - ie, put put the spool on
75 // `backwards'. This ensures that the spool's arms will clear the
78 // For the above, I generally used the Cura `Standard' PLA profile.
80 // ===== TAZ-5 feed tube adjustment kit =====
82 // With a TAZ-5 I recommend using this kit to improve the feed
87 // And print following parts
88 // FilamentGuideSpacer (ideally, at `high detail')
89 // FilamentGuideArmPrint (optional; `high detail' or `standard')
93 // from Aleph Objects - look here:
94 // http://download.lulzbot.com/TAZ/accessories/tool_heads/version_2/Dual_Extruder_v2/production_parts/stl/
96 // The spacer clips onto the filament guide tube holder arm, on the
97 // inside, with the pointy flanged end towards the filament guide
98 // tube. It stops the filament guide tube angle (and so the
99 // filament's natural pickup location) changing as the print head moves.
101 // The FilamentGuideArm[Print] is a replacement for the arm supplied
102 // with your TAZ-5. It's longer, so that the filament pickup point is
103 // closer to the middle of the coil. Use the t-nut_jig to stop the
104 // T-nuts in the aluminium channel from annoyingly sliding down to the
105 // bottom while you swap out the arm.
107 // (Faberdashery coils, and therefore both the above spools, have a
108 // larger diameter than the flat-walled spools often supplied by other
109 // vendors. And the spools above have individual arms rather than a
110 // continuous disc. If the filament `unhooks' from the arm, it can
111 // pull taught around the hub and stop feeding properly.)
113 // ===== Spool storage arm, for mounting on walls =====
115 // A storage arm suitable for screwing to walls, bookshelves,
116 // etc. (requires non-countersunk M4 screws); will hold two heavy duty
117 // spools each with a 100m coil.
122 // And print one of these, according to taste
126 // NB that the `light duty' version of this is shorter and
127 // will only take two `light duty' spools.
129 // For the above, I used the Cura `High detail' PLA profile because
130 // I wanted it pretty, but the `Standard' profile should do fine.
132 // ===== Spools for 1.75mm filament =====
134 // Spool (in many parts) for handing 1.75mm filament, printable
135 // on, and with parts for mounting on, a Reprappro Huxley.
138 fdia=2.85; // or 1.75
139 lightduty=false; // or true
145 function selsz(sm,lt,lg) = fdia < 2 ? sm : lightduty ? lt : lg;
146 function usedove() = selsz(true,true,false);
148 num_arms = selsz(3,3,4);
150 channelslop=selsz(slop,0.75,slop);
153 hubeffrad = selsz(30, 82, 40);
154 hubbigrad = selsz(20, 38, 38);
155 hublwidth = selsz(3, 2.5, 4);
158 hubaxlerad = selsz(5, 28/2, 28/2);
159 totalheightfromtower = 240;
160 axletowerfudgebend = 0;
161 axleaxlefudgebend = 3;
166 prongthick=selsz(5,4,5);
167 prongwidth=selsz(5,4,5);
169 prongribheight=selsz(0,0,4);
172 ratchettoothheight=5;
173 ratchettoothsmoothr=1;
174 ratchettoothslope=0.75;
176 cupwidth=selsz(40,25,50);
177 cupheight=selsz(55,25,55);
179 cupstrong_dx=selsz(0,0,-10);
190 stalklength=selsz(35,25,55);
195 overclipcupnextgap=selsz(20,15,20);
197 hubaxlelen = selsz(25, 62.5, 77.5);
200 overclipsmaller=-2.5;
207 armendwallthick=selsz(2.5, 1.8, 2.5);
208 armendbasethick=selsz(1.2, 1.2, 1.2);
210 axlehorizoffset = 12.5;
211 axlevertheight = 100;
220 washerthinthick = 0.8;
221 washerverythinthick = 0.4;
222 washerrad = hubaxlerad + 7.5;
223 frictionwasherarmwidth = 3;
224 frictionwasherextrapush = 1.0;
226 ratchetpawl=ratchetstep-ratchettooth-bigslop*2;
228 nondove_armhole_x = 32;
229 nondove_armhole_hole = 4 + 0.8;
230 nondove_armhole_support = 7;
231 nondove_armhole_wall = 3.2;
232 nondove_armhole_slop = 0.5;
233 nondove_armhole_slop_x = 0.5;
235 nondove_armbase = nondove_armhole_x + nondove_armhole_hole/2 +
236 nondove_armhole_support;
237 echo(nondove_armbase);
239 include <doveclip.scad>
240 include <cliphook.scad>
241 include <filamentteeth.scad>
242 include <axlepin.scad>
244 channelwidth = prongthick + channelslop;
245 channeldepth = prongwidth + ratchettoothheight;
246 totalwidth = armendwallthick*2 + channelwidth;
247 totalheight = channeldepth + armendbasethick;
248 stalkwidth = prongwidth + prongstalkxwidth;
250 module ArmEnd(length=armend_length){ ////toplevel
252 translate([ratchettoothsmoothr, channelwidth/2, -armendbasethick]) {
254 DoveClipPairBase(h=doveclipheight);
258 translate([1, -armendwallthick, -armendbasethick])
260 cube([nondove_armbase+1, totalwidth, totalheight]);
261 translate([-nondove_armbase + nondove_armhole_x,
262 -armendwallthick + totalwidth/2,
263 -armendbasethick -1])
264 cylinder(r= nondove_armhole_hole/2, h=totalheight+2, $fn=10);
269 translate([0, -armendwallthick, -armendbasethick])
270 cube([length, totalwidth, totalheight]);
271 translate([-1, 0, 0])
272 cube([length+1 - ratchettooth, channelwidth, channeldepth+1]);
273 translate([-1, 0, ratchettoothheight])
274 cube([length+2, channelwidth, channeldepth+1]);
276 for (dx = [0 : ratchetstep : length - ratchetstep]) translate([dx,0,0]) {
277 translate([ratchettoothsmoothr+0.5, armendwallthick/2, 0]) minkowski(){
279 cylinder($fn=20, r=ratchettoothsmoothr, h=armendwallthick);
280 multmatrix([ [ 1, 0, ratchettoothslope, 0 ],
284 cube([ratchettooth - ratchettoothsmoothr*2,
285 channelwidth, ratchettoothheight - ratchettoothsmoothr]);
290 module FilamentCupHandle(){
291 pawlusewidth = ratchetpawl-ratchettoothsmoothr*2;
293 cube([stalklength, stalkwidth, prongthick]);
294 translate([stalklength, stalkwidth/2, 0])
295 cylinder(r=stalkwidth/2, h=prongthick, $fn=20);
296 translate([ratchettoothsmoothr, stalkwidth, 0]) {
298 cylinder($fn=20,r=ratchettoothsmoothr, h=1);
299 multmatrix([ [ 1, -ratchettoothslope, 0, 0 ],
304 ratchettoothheight - ratchettoothsmoothr,
311 module FilamentCupCup(){
312 for (my=[0,1]) mirror([0,my,0]) {
313 translate([0, cupwidth/2, 0])
314 cube([cupheight + prongwidth, prongwidth, prongthick]);
318 module FilamentCup() { ////toplevel
322 dy = cupwidth/2 + gapy + overclipcupgap;
323 baselen = dy+cupwidth/2;
325 translate([0, dy, 0])
327 cube([prongwidth, baselen+1, prongthick]);
329 translate([cupstrong_dx, prongwidth, 0]) {
330 cube([prongwidth, baselen-prongwidth, prongthick]);
331 for (y = [0, .33, .67, 1])
332 translate([0, (baselen - prongwidth) * y, 0])
333 cube([-cupstrong_dx + 1, prongwidth, prongthick]);
335 if (cupstrong_dx != 0) {
337 translate([-prongwidth*.55, -prongwidth*2.1, 0])
338 cube([prongwidth*(2.65), prongwidth*4.2, prongthick]);
341 translate([0, -0.2, 0])
342 cube([prongribwidth, baselen, prongthick + prongribheight]);
344 if (prongribheight > 0) {
345 translate([-prongwidth, baselen, 0])
346 cube([cupheight/2, prongwidth + prongribheight, prongribwidth]);
349 midrad = cupwidth/2 + prongwidth/2;
351 propshift = stalklength - overclipdepth - prongthick + propxshift;
352 proptaken = propshift;
353 echo(midrad, propshift, proptaken);
355 translate([propshift, -1, 0]) {
356 // something is wrong with the y calculation
361 for (y = [overclipcupgap, overclipcupgap+overclipcupnextgap]) {
362 translate([cupstrong_dx, y + prongwidth, 0])
363 rotate([0,0, 102 + fdia])
364 FilamentTeeth(fdia=fdia, h=teethh);
366 for (x = [-0.3, -1.3]) {
367 translate([cupheight + overclipcupnextgap*x, baselen + prongwidth, 0])
368 rotate([0,0, 12 + fdia])
369 FilamentTeeth(fdia=fdia, h=teethh);
373 module CupSecuringClipSolid(w,d,h1,h2){
374 rotate([0,-90,0]) translate([0,-h1/2,-w/2]) linear_extrude(height=w) {
375 polygon(points=[[0,0], [d,0], [d,h2], [0,h1]]);
379 module CupSecuringClipSolidSmooth(xrad=0, xdepth=0){
380 hbase = totalheight + prongstalkxwidth - overcliproundr*2;
382 CupSecuringClipSolid(w=totalwidth,
383 d=overclipdepth + xdepth,
384 h1=hbase - overclipsmaller,
385 h2=hbase + overclipbigger);
386 cylinder($fn=20, h=0.01, r=overcliproundr+xrad);
390 module CupSecuringClip(){ ////toplevel
391 wingswidth = wingspoke*2 + overclipthick*2 + overcliproundr*2 + totalwidth;
394 CupSecuringClipSolidSmooth(xrad=overclipthick, xdepth=0);
395 translate([-wingswidth/2, -wingsize/2, 0])
396 cube([wingswidth, wingsize, wingthick]);
397 translate([-wingsize/2, -wingswidth/2, 0])
398 cube([wingsize, wingswidth, wingthick]);
400 translate([0,0,-0.1])
401 CupSecuringClipSolidSmooth(xrad=0, xdepth=0.2);
405 module ArmDoveClipPin(){ ////toplevel
406 DoveClipPin(h=doveclipheight);
409 module TowerDoveClipPin(){ ////toplevel
410 DoveClipPin(h=towercliph/2);
413 module Hub(){ ////toplevel
414 axlerad = hubaxlerad + slop;
415 xmin = axlerad+hublwidth/2;
416 xmax = hubbigrad-hublwidth/2;
417 hole = hubeffrad - hubbigrad - DoveClip_depth() - hublwidth*2;
418 holewidth = DoveClipPairSane_width() - hubstemwidth*2;
419 nondove_allwidth = nondove_armhole_wall*2 + totalwidth;
423 cylinder($fn=60, h=hublthick, r=hubbigrad);
425 cylinder($fn=30, h=hublthick+2, r=(hubbigrad-hublwidth));
427 cylinder(h=hubaxlelen, r=axlerad+hublwidth);
428 for (ang=[0 : 360/num_arms : 359])
432 translate([hubeffrad,0,0])
433 DoveClipPairSane(h=doveclipheight,
434 baseextend = (hubeffrad - DoveClip_depth()
435 - hubbigrad + hublwidth));
436 if (hole>hublwidth && holewidth > 2) {
437 translate([hubbigrad + hublwidth, -holewidth/2, -1])
438 cube([hole, holewidth, hublthick+2]);
446 cube([hubeffrad + nondove_armhole_x
447 + nondove_armhole_hole/2 + nondove_armhole_support,
449 nondove_armhole_wall + totalheight]);
450 translate([hubeffrad - nondove_armhole_slop_x,
452 + nondove_armhole_wall - nondove_armhole_slop,
453 nondove_armhole_wall])
454 cube([nondove_armhole_x + 50,
455 totalwidth + nondove_armhole_slop*2,
457 translate([hubeffrad + nondove_armhole_x, 0, -20])
458 cylinder(r= nondove_armhole_hole/2, h=50, $fn=10);
462 for (ang = [0 : 180/num_arms : 359])
463 rotate([0,0,ang]) rotate([90,0,0]) {
464 translate([0,0,-hublwidth/2])
465 linear_extrude(height=hublwidth)
466 polygon([[xmin,0.05], [xmax,0.05],
467 [xmax,hublthick-0.2], [xmin, hubaxlelen-0.2]]);
470 translate([0,0,-1]) cylinder($fn=60, h=hubaxlelen+2, r=axlerad);
474 module ArmExtender(){ ////toplevel
475 DoveClipExtender(length=exteffrad-hubeffrad,
480 module FsAxlePin(){ ////toplevel
481 AxlePin(hubaxlerad, washerrad*2, axlepinrad, axlepintabrad, slop);
484 module Axle(){ ////toplevel
485 pillarswidth = DoveClipPairSane_width(towerclipcount);
487 rotate([0,0, -( axleaxlefudgebend + atan(slop/hubaxlelen) ) ])
488 translate([-axlehorizoffset, -axlevertheight, 0]) {
489 rotate([0,0,-axletowerfudgebend])
491 DoveClipPairSane(h=towercliph, count=towerclipcount, baseextend=3);
492 translate([0, DoveClip_depth(), 0])
494 ExtenderPillars(axlevertheight - DoveClip_depth(),
495 pillarswidth, towercliph,
496 pillarw=towerpillarw);
499 axleclearlen = hubaxlelen + slop*4 + washerthick*2 + axlepadlen;
500 axlerad = hubaxlerad-slop;
501 bump = axlerad * 0.2;
502 shift = axlerad-bump;
506 translate([0, 0, shift]) {
509 translate([-1, 0, 0])
513 h = 1 + axleclearlen + axlepinrad*2 + 2);
514 mirror([1,0,0]) rotate([0,90,0])
515 cylinder(r = axlerad*1.75, h = 3);
518 translate([axlehorizoffset - pillarswidth/2, 0, 0])
521 r = towercliph - shift,
523 translate([-50, -joinbelowallow, -50])
524 cube([100, joinbelowallow+50, 100]);
528 translate([axleclearlen + axlepinrad/2, 0, -25])
529 cylinder(r = axlepinrad + slop, h=50);
532 translate([-50,-50,0]) cube([100,100,100]);
536 module washer(thick){
537 Washer(hubaxlerad, washerrad, thick, slop);
540 module AxleWasher(){ ////toplevel
541 washer(thick=washerthick);
544 module AxleThinWasher(){ ////toplevel
545 washer(thick=washerthinthick);
548 module AxleVeryThinWasher(){ ////toplevel
549 washer(thick=washerverythinthick);
552 module AxleFrictionWasher(){ ////toplevel
554 cylinder(h=washerthick, r=washerrad);
555 translate([0,0,-1]) cylinder(h=washerthick+2, r=hubaxlerad+slop);
558 frarmw = frictionwasherarmwidth;
559 frarmpawlr = hublwidth;
560 frarmpawlpush = slop*4 + frictionwasherextrapush;
561 for (ang=[0,180]) rotate([0,0,ang]) {
562 translate([washerrad-1, -frarmw/2, 0])
563 cube([frarmr - washerrad + 1, frarmw, washerthick]);
565 translate([frarmr - frarmpawlr, -50, 0])
566 cube([frarmpawlr, 100, 50]);
568 cylinder(h = 50, r = frarmpawlpush, $fn=36);
573 module TowerExtender(){ ////toplevel
574 l = totalheightfromtower - axlevertheight;
575 echo("TowerExtender",l);
576 DoveClipExtender(length = l,
577 ha = towercliph, hb = towercliph,
578 counta = towerclipcount, countb = towerclipcount,
579 pillarw = towerpillarw);
582 module FilamentCupPair(){ ////toplevel
584 translate([cupheight + prongthick*3,
587 rotate([0,0,180]) FilamentCup();
590 //----- storarm -----
593 storarm_hookheight = 5;
595 storarm_axleslop = 4;
598 storarm_base_h = 100;
600 storarm_base_mind = 2;
602 storarm_cope_hubaxle_mk1 = true;
604 storarm_screw_hole = 4;
605 storarm_screw_hole_slop = 0.5;
606 storarm_besides_hole = 4;
608 storarm_under_hole = 5;
609 storarm_screw_hole_head = 8.8;
610 storarm_screw_hole_head_slop = 1.5;
614 storarm_axlerad = hubaxlerad - storarm_axleslop;
615 storarm_mainlen = hubaxlelen*2 + storarm_axleslop
616 + (storarm_cope_hubaxle_mk1 ? 10 : 0);
617 storarm_totlen = storarm_mainlen + storarm_hooklen;
619 storarm_mid_off_y = storarm_axlerad;
621 storarm_base_off_y = storarm_mid_off_y + storarm_base_h/2;
623 module StorageArmDiagPartSide(xmin, xmax){
625 yuse = storarm_thick/2;
628 translate([xmin-1, -storarm_axlerad, storarm_thick/2])
630 cylinder(r=storarm_axlerad, h=xsz+2, $fn=60);
631 translate([xmin, -yuse, 0])
632 cube([xsz, yuse, storarm_thick]);
636 module StorageArmDiagPart(xmin, xmax, shear, adjbot){
638 StorageArmDiagPartSide(xmin,xmax);
640 multmatrix([[1,0,0,0],
644 translate([0, -storarm_axlerad*2 + adjbot, 0])
646 StorageArmDiagPartSide(xmin,xmax);
650 module StorageArmBaseTemplate(){
651 square([storarm_base_w, storarm_base_h]);
654 module StorageArmAtMountingHoles(){
655 bes = storarm_besides_hole + storarm_screw_hole;
658 x1 = storarm_base_w-bes;
659 y1 = storarm_base_h - bes;
666 translate([pos[0] - storarm_base_w,
667 pos[1] - storarm_base_off_y, -storarm_base_d])
672 module StorageArmRight(){ ////toplevel
673 shear = storarm_hookheight / (storarm_mainlen/2);
675 StorageArmDiagPart(-1, storarm_mainlen/2+1, shear, 0);
676 StorageArmDiagPart(storarm_mainlen/2-1, storarm_mainlen+1, shear/2,
677 storarm_hookheight/2);
679 translate([0, storarm_hookheight, 0])
680 StorageArmDiagPart(storarm_mainlen, storarm_totlen,
681 shear/2, -storarm_hookheight/2);
686 translate([-storarm_base_d, -storarm_base_off_y, storarm_base_w])
688 linear_extrude(height=storarm_base_mind)
689 StorageArmBaseTemplate();
690 StorageArmDiagPart(-1, 0, shear, 0);
692 StorageArmAtMountingHoles(){
693 cylinder(r= storarm_screw_hole_head/2,
697 StorageArmAtMountingHoles(){
699 cylinder(r= (storarm_screw_hole + storarm_screw_hole_slop)/2 ,
701 translate([0,0,storarm_under_hole])
702 cylinder(r= (storarm_screw_hole_head + storarm_screw_hole_head_slop)/2,
708 module StorageArmLeft(){ ////toplevel
709 mirror([1,0,0]) StorageArmRight();
712 module StorArmHoleTest(){ ////toplevel
713 sz = storarm_screw_hole_head + storarm_besides_hole*2;
716 translate([-50, -storarm_base_off_y, -1])
717 cube([100, sz, sz+1]);
722 //----- filament guide spacer -----
725 guide_armwidth = 10.2;
726 guide_armcorelen = 25.0;
727 guide_clipcirclethick = 10.0;
729 guidefilclip_outerdia = 22.8;
731 guidespacer_armslop = 0.75;
732 guidespacer_armlenslop = 1.05;
734 guidespacer_prongprotrude = 4;
735 guidespacer_thick = 1.6;
739 guidespacer_armdia = guide_armdia + guidespacer_armslop;
740 guidespacer_armwidth = guide_armwidth + guidespacer_armslop;
741 guidespacer_len = guide_armcorelen - guide_clipcirclethick
742 + guidespacer_armlenslop;
744 guidespacer_wingheight = (guidefilclip_outerdia - guidespacer_armdia)/2;
746 module FilamentGuideArmTemplate(extra=0){
748 circle(r= (guidespacer_armdia/2) + extra);
749 square(center=true, [guidespacer_armwidth+extra*2,
750 guidespacer_armdia + extra*2 + 10]);
754 module FilamentGuideSpacerInnerTemplate(){
755 FilamentGuideArmTemplate();
756 translate([0, -guidespacer_armdia/2])
757 square(center=true, [guidespacer_armwidth - guidespacer_prongprotrude,
758 guidespacer_armdia]);
761 module FilamentGuideSpacer(){ ////toplevel
764 linear_extrude(height= guidespacer_len)
765 FilamentGuideArmTemplate(extra= guidespacer_thick);
766 for (angle=[26, 60]) {
769 rotate([0,0,angle]) {
771 for (t=[[0, guidespacer_wingheight],
772 [guidespacer_len-1, -guidespacer_wingheight]])
773 translate([0,0, t[0] + 0.5])
774 cube([guidespacer_thick, guidespacer_armdia + t[1]*2,
784 linear_extrude(height= guidespacer_len+5)
785 FilamentGuideSpacerInnerTemplate();
790 //----- replacement filament guide arm for TAZ-5 -----
792 guidearm_armslop = 0.25;
793 guidearm_armlenslop = 0.25;
795 guidearm_hookprotr = 3;
796 guidearm_hookprotrflat = 1;
797 guidearm_hookslope = 0.3;
799 guidearm_totallen = 60;
801 guidearm_screwplatesz = 12;
802 guidearm_screwplateth = 4;
803 guidearm_screwplatewd = 15;
804 guidearm_screwhole = 5 + 0.5;
806 guidearm_bendlen = 40;
807 guidearm_bendslot = 4.5;
809 guidearm_stopthick = 4;
810 guidearm_protrslop = 1.0;
814 guidearm_armdia = guide_armdia - guidearm_armslop;
815 guidearm_armwidth = guide_armwidth - guidearm_armslop;
816 guidearm_armcorelen = guide_armcorelen + guidearm_armlenslop;
818 guidearm_base_z0 = -(guidearm_totallen - guidearm_armcorelen);
820 guidearm_realbendlen = min(guidearm_bendlen,
821 guidearm_totallen - guidearm_screwplateth - 0.1);
822 guidearm_slopelen = guidearm_hookprotr/guidearm_hookslope;
824 module FilamentGuideArmStop(h){
826 translate([ts * guidearm_hookprotr, 0,0])
827 cylinder(r=guidearm_armdia/2, h, $fn=80);
831 module FilamentGuideArmShaftPositive(){
832 r = guidearm_armdia/2;
834 translate([0,0, guidearm_base_z0+1])
835 cylinder(r=r, h= guidearm_totallen, $fn=80);
836 translate([0,0, guidearm_armcorelen]){
838 FilamentGuideArmStop(guidearm_hookprotrflat);
839 translate([0,0, guidearm_slopelen])
840 cylinder(r=r, h=guidearm_hookprotrflat, $fn=80);
844 FilamentGuideArmStop(guidearm_stopthick);
847 module FilamentGuideArmBase(){
849 (guidearm_screwplatewd - guidearm_armwidth)/2,
852 translate([0,0, guidearm_screwplateth/2])
854 [guidearm_armdia + guidearm_screwplatesz*2,
855 guidearm_screwplatewd,
856 guidearm_screwplateth]);
858 translate([ts * (guidearm_armdia/2 + guidearm_screwplatesz/2),
861 cylinder(r= guidearm_screwhole/2, h=40, $fn=20);
867 module FilamentGuideArm(){ ///toplevel
870 FilamentGuideArmShaftPositive();
871 translate([-guidearm_bendslot/2,
873 -guidearm_realbendlen + guidearm_armcorelen])
874 cube([guidearm_bendslot,
876 guidearm_realbendlen + 100]);
878 for (zx=[ [ 0, guidearm_bendslot ],
879 [ guidearm_armcorelen + guidearm_slopelen,
880 guidearm_hookprotr*2 + guidearm_protrslop ]
882 translate([-zx[1]/2, -50, zx[0]])
883 cube([zx[1], 100, 1]);
890 guidearm_totallen*3]);
892 FilamentGuideArmBase();
895 module FilamentGuideArmPrint(){ ////toplevel
900 module Demo(){ ////toplevel
901 translate([-hubeffrad-nondove_armbase,-20,0]) Hub();
903 translate([0,30,0]) FilamentCup();
915 //AxleFrictionWasher();
918 //FilamentGuideSpacer();
919 //FilamentGuideArm();
920 //FilamentGuideArmPrint();