//
// 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.
+// ===== Heavy duty 4-armed spool for 3mm x 100m coil =====
+//
+// A 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
//
// 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.
+// ===== Light duty 3-armed spool for 3mm x <=30m coil =====
+//
+// A light duty 3-armed spool suitable for up to around 30m
+// of Faberdashery 2.85mm PLA.
//
// Set
// fdia=2.85
// (note that the light duty and heavy duty CupSecuringClips
// are slightly different)
//
+// ===== Notes regarding both the above spools =====
+//
// 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
//
// 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.
+// ===== TAZ-5 feed tube adjustment kit =====
+//
+// With a TAZ-5 I recommend using this kit to improve the feed
+// reliability:
+//
+// Set
+// fdia=2.85
+// And print following parts
+// FilamentGuideSpacer (ideally, at `high detail')
+// FilamentGuideArmPrint (optional; `high detail' or `standard')
+//
+// And possibly also
+// t-nut_jig_0.2.stl
+// from Aleph Objects - look here:
+// http://download.lulzbot.com/TAZ/accessories/tool_heads/version_2/Dual_Extruder_v2/production_parts/stl/
+//
+// The spacer clips onto the filament guide tube holder arm, on the
+// inside, with the pointy flanged end towards the filament guide
+// tube. It stops the filament guide tube angle (and so the
+// filament's natural pickup location) changing as the print head moves.
+//
+// The FilamentGuideArm[Print] is a replacement for the arm supplied
+// with your TAZ-5. It's longer, so that the filament pickup point is
+// closer to the middle of the coil. Use the t-nut_jig to stop the
+// T-nuts in the aluminium channel from annoyingly sliding down to the
+// bottom while you swap out the arm.
+//
+// (Faberdashery coils, and therefore both the above spools, have a
+// larger diameter than the flat-walled spools often supplied by other
+// vendors. And the spools above have individual arms rather than a
+// continuous disc. If the filament `unhooks' from the arm, it can
+// pull taught around the hub and stop feeding properly.)
+//
+// ===== Spool storage arm, for mounting on walls =====
+//
+// A 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
// 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.
+// ===== Spools for 1.75mm filament =====
+//
+// 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
armendwallthick=selsz(2.5, 1.8, 2.5);
armendbasethick=selsz(1.2, 1.2, 1.2);
+numbers_relief = 0.7;
+numbers_tick_len = 8;
+numbers_tick_width = 0.75;
+numbers_tick_linespc = 1.0;
+numbers_height_allow = 8;
+
axlehorizoffset = 12.5;
axlevertheight = 100;
towercliph = 16;
include <filamentteeth.scad>
include <axlepin.scad>
+real_exteffrad = selsz(exteffrad,
+ hubeffrad + DoveClip_depth(),
+ hubeffrad + nondove_armbase);
+
channelwidth = prongthick + channelslop;
channeldepth = prongwidth + ratchettoothheight;
totalwidth = armendwallthick*2 + channelwidth;
totalheight = channeldepth + armendbasethick;
stalkwidth = prongwidth + prongstalkxwidth;
+tau = PI*2;
+
module ArmEnd(length=armend_length){ ////toplevel
if (usedove()) {
translate([ratchettoothsmoothr, channelwidth/2, -armendbasethick]) {
}
}
+ for (otherside=[0,1]) {
+ for (circum = [300:100:1500]) {
+ assign(rad = circum / tau)
+ assign(fn = str("filamentspool-number-n",circum,".dxf"))
+ assign(rotateoffset = [0, totalwidth/2, 0])
+ assign(xlen = rad - real_exteffrad) {
+ if (xlen >= numbers_tick_width/2
+ + (otherside ? numbers_height_allow : 0) &&
+ xlen <= length - (otherside ? 0 : numbers_height_allow))
+ translate([xlen, -armendwallthick,
+ -armendbasethick + (totalheight - numbers_tick_len)/2])
+ translate(rotateoffset)
+ rotate([0,0, otherside*180])
+ translate(-rotateoffset){
+ translate([-numbers_tick_width/2, -1, 0])
+ cube([numbers_tick_width, numbers_relief+1, numbers_tick_len]);
+ translate([numbers_tick_width/2 + numbers_tick_linespc,
+ 1,
+ numbers_tick_len])
+ rotate([90,0,0])
+ rotate([0,0,-90])
+ linear_extrude(height= numbers_relief+1)
+ // scale(templatescale)
+ import(file=fn, convexity=100);
+ }
+ }
+ }
+ }
+
difference(){
translate([0, -armendwallthick, -armendbasethick])
cube([length, totalwidth, totalheight]);
guide_armdia = 15.0;
guide_armwidth = 10.2;
-guide_armcorelen = 15.3;
+guide_armcorelen = 25.0;
+guide_clipcirclethick = 10.0;
guidefilclip_outerdia = 22.8;
guidespacer_armslop = 0.75;
-guidespacer_armlenslop = 0.75;
+guidespacer_armlenslop = 1.05;
guidespacer_prongprotrude = 4;
guidespacer_thick = 1.6;
guidespacer_armdia = guide_armdia + guidespacer_armslop;
guidespacer_armwidth = guide_armwidth + guidespacer_armslop;
-guidespacer_len = guide_armcorelen + guidespacer_armlenslop;
+guidespacer_len = guide_armcorelen - guide_clipcirclethick
+ + guidespacer_armlenslop;
guidespacer_wingheight = (guidefilclip_outerdia - guidespacer_armdia)/2;
guidearm_armslop = 0.25;
guidearm_armlenslop = 0.25;
-guidearm_hookprotr = 4;
+guidearm_hookprotr = 3;
guidearm_hookprotrflat = 1;
guidearm_hookslope = 0.3;
+guidearm_totallen = 60;
+
+guidearm_screwplatesz = 12;
+guidearm_screwplateth = 4;
+guidearm_screwplatewd = 15;
+guidearm_screwhole = 5 + 0.5;
+
+guidearm_bendlen = 40;
+guidearm_bendslot = 4.5;
+
+guidearm_stopthick = 4;
+guidearm_protrslop = 1.0;
+
// calculated
guidearm_armdia = guide_armdia - guidearm_armslop;
guidearm_armwidth = guide_armwidth - guidearm_armslop;
guidearm_armcorelen = guide_armcorelen + guidearm_armlenslop;
-module FilamentGuideArm(){ ///toplevel
+guidearm_base_z0 = -(guidearm_totallen - guidearm_armcorelen);
+
+guidearm_realbendlen = min(guidearm_bendlen,
+ guidearm_totallen - guidearm_screwplateth - 0.1);
+guidearm_slopelen = guidearm_hookprotr/guidearm_hookslope;
+
+module FilamentGuideArmStop(h){
+ for (ts=[-1,+1]) {
+ translate([ts * guidearm_hookprotr, 0,0])
+ cylinder(r=guidearm_armdia/2, h, $fn=80);
+ }
+}
+
+module FilamentGuideArmShaftPositive(){
r = guidearm_armdia/2;
- translate([0,0,-1])
- cylinder(r=r, h= guidearm_armcorelen+2);
+ translate([0,0, guidearm_base_z0+1])
+ cylinder(r=r, h= guidearm_totallen, $fn=80);
translate([0,0, guidearm_armcorelen]){
hull(){
+ FilamentGuideArmStop(guidearm_hookprotrflat);
+ translate([0,0, guidearm_slopelen])
+ cylinder(r=r, h=guidearm_hookprotrflat, $fn=80);
+ }
+ }
+ mirror([0,0,1])
+ FilamentGuideArmStop(guidearm_stopthick);
+}
+
+module FilamentGuideArmBase(){
+ translate([0,
+ (guidearm_screwplatewd - guidearm_armwidth)/2,
+ guidearm_base_z0]){
+ difference(){
+ translate([0,0, guidearm_screwplateth/2])
+ cube(center=true,
+ [guidearm_armdia + guidearm_screwplatesz*2,
+ guidearm_screwplatewd,
+ guidearm_screwplateth]);
for (ts=[-1,+1]) {
- translate([ts * guidearm_hookprotr, 0,0])
- cylinder(r=r, h=guidearm_hookprotrflat);
+ translate([ts * (guidearm_armdia/2 + guidearm_screwplatesz/2),
+ 0,
+ -20])
+ cylinder(r= guidearm_screwhole/2, h=40, $fn=20);
+ }
+ }
+ }
+}
+
+module FilamentGuideArm(){ ///toplevel
+ intersection(){
+ difference(){
+ FilamentGuideArmShaftPositive();
+ translate([-guidearm_bendslot/2,
+ -50,
+ -guidearm_realbendlen + guidearm_armcorelen])
+ cube([guidearm_bendslot,
+ 100,
+ guidearm_realbendlen + 100]);
+ hull(){
+ for (zx=[ [ 0, guidearm_bendslot ],
+ [ guidearm_armcorelen + guidearm_slopelen,
+ guidearm_hookprotr*2 + guidearm_protrslop ]
+ ]) {
+ translate([-zx[1]/2, -50, zx[0]])
+ cube([zx[1], 100, 1]);
+ }
}
- translate([0,0, guidearm_hookprotr/guidearm_hookslope])
- cylinder(r=r, h=guidearm_hookprotrflat);
}
+ cube(center=true,
+ [guidearm_armdia*2,
+ guidearm_armwidth,
+ guidearm_totallen*3]);
}
+ FilamentGuideArmBase();
}
+module FilamentGuideArmPrint(){ ////toplevel
+ rotate([90,0,0])
+ FilamentGuideArm();
+}
-module Demo(){
- translate([-hubeffrad-30,50,0]) Hub();
+module Demo(){ ////toplevel
+ translate([-real_exteffrad,-20,0]) Hub();
ArmEnd();
- translate([0,50,0]) FilamentCup();
+ translate([ratchettooth*2, 30, 0]) FilamentCup();
}
//ArmEnd();
//StorArmHoleTest();
//FilamentGuideSpacer();
//FilamentGuideArm();
+//FilamentGuideArmPrint();
//Demo();
~ianmdlvl / reprap-play.git / blobdiff