// -*- C -*-
-fdia=2.85;
+// filamentspool.scad
+// 3D design for filament spools to hold coils as supplied by Faberdashery
+//
+
+//
+// Copyright 2012,2013,2016 Ian Jackson
+//
+// This work is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This work is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this work. If not, see <http://www.gnu.org/licenses/>
+//
+
+//
+// Each spool is a hub with 3 or 4 arms. Each arm has a cup for
+// holding the filament. The effective diameter can be adjusted by
+// setting the cup into a different seat in the arm. The cups are
+// held on with simple clips, so the filement coil can easily be
+// removed and replaced.
+//
+// This file (and its includes) can generate:
+//
+// - Heavy duty 4-armed spool suitable for holding a 100m
+// Faberdashery coil on the spool arm of a Lulzbot TAZ-5.
+//
+// Set
+// fdia=2.85
+// lightduty=false
+// And print following parts
+// Hub
+// ArmEnd x 4
+// FilamentCup x 4 (or FilamentCupPair x 2)
+// CupSecuringClip x 4
+//
+// You will also need 4 x M4 machine screws and nuts.
+//
+// - Light duty 3-armed spool suitable for up to around 30m
+// of Faberdashery 2.85mm PLA.
+//
+// Set
+// fdia=2.85
+// lightduty=true
+// And print following parts
+// Hub
+// ArmEnd x 3
+// FilamentCup x 3 (or FilamentCup + FilamentCupPair)
+// CupSecuringClip x 3
+// TowerDoveClipPin x 6
+//
+// When assembling, insert one TowerDoveClipPin from each side,
+// joining each ArmEnd to the Hub with two TowerDoveClipPins.
+// Modest force with pliers is good to seat them properly.
+//
+// (note that the light duty and heavy duty CupSecuringClips
+// are slightly different)
+//
+// When mounting either spool on the TAZ-5 spool arm, put the `pointy'
+// end of the hub towards the printer - ie, put put the spool on
+// `backwards'. This ensures that the spool's arms will clear the
+// printer framework.
+//
+// For the above, I generally used the Cura `Standard' PLA profile.
+//
+// - Storage arm suitable for screwing to walls, bookshelves,
+// etc. (requires non-countersunk M4 screws); will hold two
+// heavy duty spools each with a 100m coil.
+//
+// Set
+// fdia=2.85
+// lightduty=false
+// And print one of these, according to taste
+// StorageArmLeft
+// StorageArmRight
+//
+// NB that the `light duty' version of this is shorter and
+// will only take two `light duty' spools.
+//
+// For the above, I used the Cura `High detail' PLA profile because
+// I wanted it pretty, but the `Standard' profile should do fine.
+//
+// - Spool (in many parts) for handing 1.75mm filament, printable
+// on, and with parts for mounting on, a Reprappro Huxley.
+
+
+fdia=2.85; // or 1.75
+lightduty=false; // or true
+
slop=0.5;
bigslop=slop*2;
-function selsz(sm,lg) = fdia < 2 ? sm : lg;
-function usedove() = selsz(true,false);
+function selsz(sm,lt,lg) = fdia < 2 ? sm : lightduty ? lt : lg;
+function usedove() = selsz(true,true,false);
+
+num_arms = selsz(3,3,4);
-num_arms = selsz(3,4);
+channelslop=selsz(slop,0.75,slop);
exteffrad = 70;
-hubeffrad = selsz(30, 50);
-hubbigrad = selsz(20, 45);
-hublwidth = selsz(3, 4);
+hubeffrad = selsz(30, 82, 40);
+hubbigrad = selsz(20, 38, 38);
+hublwidth = selsz(3, 2.5, 4);
hubstemwidth = 2;
hublthick = 10;
-hubaxlerad = selsz(5, 28/2);
+hubaxlerad = selsz(5, 28/2, 28/2);
totalheightfromtower = 240;
axletowerfudgebend = 0;
axleaxlefudgebend = 3;
armend_length = 120;
-prongthick=selsz(5,5);
-prongwidth=selsz(5,5);
+prongthick=selsz(5,4,5);
+prongwidth=selsz(5,4,5);
prongribwidth=3;
-prongribheight=selsz(0,4);
+prongribheight=selsz(0,0,4);
ratchetstep=15;
ratchettooth=3;
ratchettoothheight=5;
ratchettoothsmoothr=1;
ratchettoothslope=0.75;
overlap=0.5;
-cupwidth=selsz(40,50);
-cupheight=selsz(55,55);
+cupwidth=selsz(40,25,50);
+cupheight=selsz(55,25,55);
-cupstrong_dx=selsz(0,-10);
+cupstrong_dx=selsz(0,0,-10);
-propxshift = 0;
+propxshift = -6;
doveclipheight = 10;
prongstalkxwidth=3;
-stalklength=selsz(35,55);
+stalklength=selsz(35,25,55);
overclipcupgap=5;
overclipdepth=15;
overcliproundr=2.0;
overclipthick=1.0;
-overclipcupnextgap=20;
+overclipcupnextgap=selsz(20,15,20);
-hubaxlelen = selsz(25, 57.5);
+hubaxlelen = selsz(25, 62.5, 77.5);
echo(hubaxlelen);
overclipsmaller=-2.5;
overclipbigger=0.0;
-wingspoke=3;
+wingspoke=2.5;
wingsize=6;
wingthick=3;
-armendwallthick=2.5;
-armendbasethick=1.2;
+armendwallthick=selsz(2.5, 1.8, 2.5);
+armendbasethick=selsz(1.2, 1.2, 1.2);
axlehorizoffset = 12.5;
axlevertheight = 100;
include <filamentteeth.scad>
include <axlepin.scad>
-channelwidth = prongthick + slop;
+channelwidth = prongthick + channelslop;
channeldepth = prongwidth + ratchettoothheight;
totalwidth = armendwallthick*2 + channelwidth;
totalheight = channeldepth + armendbasethick;
cylinder(h=hubaxlelen, r=axlerad+hublwidth);
for (ang=[0 : 360/num_arms : 359])
rotate([0,0,ang]) {
- difference() {
- if (usedove()){
+ if (usedove()){
+ difference() {
translate([hubeffrad,0,0])
DoveClipPairSane(h=doveclipheight,
baseextend = (hubeffrad - DoveClip_depth()
translate([hubbigrad + hublwidth, -holewidth/2, -1])
cube([hole, holewidth, hublthick+2]);
}
- } else {
- difference(){
- translate([0,
- -nondove_allwidth/2,
- 0])
- cube([hubeffrad + nondove_armhole_x
- + nondove_armhole_hole/2 + nondove_armhole_support,
- nondove_allwidth,
- nondove_armhole_wall + totalheight]);
- translate([hubeffrad - nondove_armhole_slop_x,
- -nondove_allwidth/2
- + nondove_armhole_wall - nondove_armhole_slop,
- nondove_armhole_wall])
- cube([nondove_armhole_x + 50,
- totalwidth + nondove_armhole_slop*2,
- totalheight + 1]);
- translate([hubeffrad + nondove_armhole_x, 0, -20])
- cylinder(r= nondove_armhole_hole/2, h=50, $fn=10);
- }
+ }
+ } else {
+ difference(){
+ translate([0,
+ -nondove_allwidth/2,
+ 0])
+ cube([hubeffrad + nondove_armhole_x
+ + nondove_armhole_hole/2 + nondove_armhole_support,
+ nondove_allwidth,
+ nondove_armhole_wall + totalheight]);
+ translate([hubeffrad - nondove_armhole_slop_x,
+ -nondove_allwidth/2
+ + nondove_armhole_wall - nondove_armhole_slop,
+ nondove_armhole_wall])
+ cube([nondove_armhole_x + 50,
+ totalwidth + nondove_armhole_slop*2,
+ totalheight + 1]);
+ translate([hubeffrad + nondove_armhole_x, 0, -20])
+ cylinder(r= nondove_armhole_hole/2, h=50, $fn=10);
}
}
}
rotate([0,0,180]) FilamentCup();
}
+//----- storarm -----
+
+storarm_hooklen = 8;
+storarm_hookheight = 5;
+storarm_thick = 10;
+storarm_axleslop = 4;
+
+storarm_base_w = 30;
+storarm_base_h = 100;
+storarm_base_d = 15;
+storarm_base_mind = 2;
+
+storarm_cope_hubaxle_mk1 = true;
+
+storarm_screw_hole = 4;
+storarm_screw_hole_slop = 0.5;
+storarm_besides_hole = 4;
+
+storarm_under_hole = 5;
+storarm_screw_hole_head = 8.8;
+storarm_screw_hole_head_slop = 1.5;
+
+// calculated
+
+storarm_axlerad = hubaxlerad - storarm_axleslop;
+storarm_mainlen = hubaxlelen*2 + storarm_axleslop
+ + (storarm_cope_hubaxle_mk1 ? 10 : 0);
+storarm_totlen = storarm_mainlen + storarm_hooklen;
+
+storarm_mid_off_y = storarm_axlerad;
+
+storarm_base_off_y = storarm_mid_off_y + storarm_base_h/2;
+
+module StorageArmDiagPartSide(xmin, xmax){
+ xsz = xmax-xmin;
+ yuse = storarm_thick/2;
+
+ intersection(){
+ translate([xmin-1, -storarm_axlerad, storarm_thick/2])
+ rotate([0,90,0])
+ cylinder(r=storarm_axlerad, h=xsz+2, $fn=60);
+ translate([xmin, -yuse, 0])
+ cube([xsz, yuse, storarm_thick]);
+ }
+}
+
+module StorageArmDiagPart(xmin, xmax, shear, adjbot){
+ hull(){
+ StorageArmDiagPartSide(xmin,xmax);
+
+ multmatrix([[1,0,0,0],
+ [shear,1,0,0],
+ [0,0,1,0],
+ [0,0,0,1]])
+ translate([0, -storarm_axlerad*2 + adjbot, 0])
+ mirror([0,1,0])
+ StorageArmDiagPartSide(xmin,xmax);
+ }
+}
+
+module StorageArmBaseTemplate(){
+ square([storarm_base_w, storarm_base_h]);
+}
+
+module StorageArmAtMountingHoles(){
+ bes = storarm_besides_hole + storarm_screw_hole;
+
+ x0 = bes;
+ x1 = storarm_base_w-bes;
+ y1 = storarm_base_h - bes;
+ y0 = bes;
+
+ for (pos=[ [x0, y1],
+ [x1, y1],
+ [x1, y0] ]) {
+ rotate([0,90,0])
+ translate([pos[0] - storarm_base_w,
+ pos[1] - storarm_base_off_y, -storarm_base_d])
+ children();
+ }
+}
+
+module StorageArmRight(){ ////toplevel
+ shear = storarm_hookheight / (storarm_mainlen/2);
+
+ StorageArmDiagPart(-1, storarm_mainlen/2+1, shear, 0);
+ StorageArmDiagPart(storarm_mainlen/2-1, storarm_mainlen+1, shear/2,
+ storarm_hookheight/2);
+
+ translate([0, storarm_hookheight, 0])
+ StorageArmDiagPart(storarm_mainlen, storarm_totlen,
+ shear/2, -storarm_hookheight/2);
+
+ difference(){
+ union(){
+ hull(){
+ translate([-storarm_base_d, -storarm_base_off_y, storarm_base_w])
+ rotate([0,90,0])
+ linear_extrude(height=storarm_base_mind)
+ StorageArmBaseTemplate();
+ StorageArmDiagPart(-1, 0, shear, 0);
+ }
+ StorageArmAtMountingHoles(){
+ cylinder(r= storarm_screw_hole_head/2,
+ h=10);
+ }
+ }
+ StorageArmAtMountingHoles(){
+ translate([0,0,-1])
+ cylinder(r= (storarm_screw_hole + storarm_screw_hole_slop)/2 ,
+ h=20);
+ translate([0,0,storarm_under_hole])
+ cylinder(r= (storarm_screw_hole_head + storarm_screw_hole_head_slop)/2,
+ h=20);
+ }
+ }
+}
+
+module StorageArmLeft(){ ////toplevel
+ mirror([1,0,0]) StorageArmRight();
+}
+
+module StorArmHoleTest(){ ////toplevel
+ sz = storarm_screw_hole_head + storarm_besides_hole*2;
+ intersection(){
+ StorageArmRight();
+ translate([-50, -storarm_base_off_y, -1])
+ cube([100, sz, sz+1]);
+ }
+}
+
+
+//----- filament guide clip spacer clip -----
+
+guideclip_armdia = 15.0 + 0.5;
+guideclip_armwidth = 10.2 + 0.5;
+guideclip_armspacelen = 15.3 - 0.25;
+
+guideclip_prongprotrude = 4;
+guideclip_thick = 1.6;
+
+module FilamentGuideClipArmTemplate(extra=0){
+ intersection(){
+ circle(r= (guideclip_armdia/2) + extra);
+ square(center=true, [guideclip_armwidth+extra*2,
+ guideclip_armdia + extra*2 + 10]);
+ }
+}
+
+module FilamentGuideClipSpacerClipInnerTemplate(){
+ FilamentGuideClipArmTemplate();
+ translate([0, -guideclip_armdia/2])
+ square(center=true, [guideclip_armwidth - guideclip_prongprotrude,
+ guideclip_armdia]);
+}
+
+module FilamentGuideClipSpacerClip(){ ////toplevel
+ difference(){
+ union(){
+ linear_extrude(height= guideclip_armspacelen)
+ FilamentGuideClipArmTemplate(extra= guideclip_thick);
+ }
+ translate([0,0,-1])
+ linear_extrude(height= guideclip_armspacelen+2)
+ FilamentGuideClipSpacerClipInnerTemplate();
+ }
+}
+
+
+module Demo(){
+ translate([-hubeffrad-30,50,0]) Hub();
+ ArmEnd();
+ translate([0,50,0]) FilamentCup();
+}
+
//ArmEnd();
//FilamentCup();
//FilamentCupPair();
//AxleWasher();
//AxlePin();
//AxleFrictionWasher();
+//StorageArmLeft();
+//StorArmHoleTest();
+//Demo();
~ianmdlvl / reprap-play.git / blobdiff