Files F5725381

X-carriagestruder.scad
ngraham (Nathaniel Graham)
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Author
ngraham
Created
Feb 22 2018, 2:40 PM

X-carriagestruder.scad
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/* Complex test file
Written by Nate Graham, 2013
License: MIT */
// Dimensions
// ==========
m3r=3.7/2;
m3nr=6.3/2;
m3nh=3;
m6r=6.7/2;
// Fasteners
// =========
module bolt(diameter=6, length=12, pan_head=true, washer=true){
color([0.5,0.5,0.5])
union(){
if (pan_head){
translate([0,0,-1])
difference(){
// Pan head
sphere(r=diameter, $fn=22);
translate([0,0,-8]) cube([20,20,20], center=true);
translate([0,0,7]) cube([20,20,5], center=true);
// Hex hole
translate([0,0,2.1]) cylinder(r=diameter/2,h=diameter+2,$fn=6);
}
} else {
difference(){
// Cylindrical head
cylinder(r=diameter-0.5,h=diameter-0.5);
// Hex hole
translate([0,0,diameter/2]) cylinder(r=diameter/2,h=diameter+2,$fn=6);
}
}
// Washer
cylinder(r=diameter*1.15,h=1);
// Threaded rod part
translate([0,0,-length]) cylinder(r=diameter/2,h=length);
}
}
// bolt(diameter=4, length=12, pan_head=false);
// Igus DryLin linear rails
// ========================
module igus_rail(length=80, bolts=false) {
number_of_holes = ceil(length/120);
echo(number_of_holes);
color([0.7,0.7,0.7])
difference(){
union() {
// Bottom flat plate
translate([-20,0,0]) cube([40,length,5]);
// Rounded rails
translate([-20,0,9]) rotate([-90,0,0]) cylinder(r=5, h=length, $fn=32);
translate([20,0,9]) rotate([-90,0,0]) cylinder(r=5, h=length, $fn=32);
// rail braces
translate([-19.5,0,4]) rotate([0,30,0]) cube([6,length,4]);
translate([14.5,0,1]) rotate([0,-30,0]) cube([6,length,4]);
}
// Subtract screw holes
for(i = [0:number_of_holes-1] ){
// hole_pos = (length/2 - (120*floor(number_of_holes/2)) + i*120);
translate([0,(length/2 - (120*floor(number_of_holes/2)) + i*120),-1]) cylinder(r=m6r, h=7);
// if(bolts){
// translate([0,(length/2 - (120*floor(number_of_holes/2)) + i*120),-1]) bolt(diameter=6, length=12, pan_head=true);
// }
}
}
// Add bolts, if specified
if(bolts){
for(i = [0:number_of_holes-1] ){
translate([0,(length/2 - (120*floor(number_of_holes/2)) + i*120),5]) bolt();
}
}
}
module igus_pillow_block(bolts=false, bolt_protrusion=12) {
color([0.7,0.7,0.7])
difference() {
// Main block
cube([26,29,16]);
// Corner cut
translate([15,-0.5,-0.5]) cube([15,30,7]);
// Circular hole for rail guide
translate([16.5,-0.5,8]) rotate([-90,0,0]) cylinder(r=5.2, h=30, $fn=32);
// M6 screw holes
translate([6.5,6.5,-0.5]) cylinder(r=m6r, h=17);
translate([6.5,22.5,-0.5]) cylinder(r=m6r, h=17);
}
if(bolts){
translate([6.5,6.5,17+bolt_protrusion]) bolt(length=12+bolt_protrusion);
translate([6.,22.5,17+bolt_protrusion]) bolt(length=12+bolt_protrusion);
}
}
module igus_carriage(length=60, bolts=false, bolt_protrusion=4) {
// Pillow blocks
translate([-36.5,0,1]) igus_pillow_block(bolts=bolts, bolt_protrusion=bolt_protrusion);
translate([36.5,29,1]) rotate([0,0,180]) igus_pillow_block(bolts=bolts, bolt_protrusion=bolt_protrusion);
translate([-36.5,length-29,1]) igus_pillow_block(bolts=bolts, bolt_protrusion=bolt_protrusion);
translate([36.5,length,1]) rotate([0,0,180]) igus_pillow_block(bolts=bolts, bolt_protrusion=bolt_protrusion);
carriage_plate(length=length);
}
module carriage_plate(length=60){
difference(){
// Base plate
translate([-36.5,0,17]) cube([73,length,4]);
// M6 holes
for(i=[-29.95,29.95]){
for (j=[6.5,22.5,length-22.5,length-6.5]){
translate([i,j,16]) cylinder(r=m6r, h=6, $fn=16);
}
}
}
}
// igus_rail(length=270, bolts=true);
// translate([0,0,00]) igus_carriage(length=62, bolts=false, bolt_protrusion=4);
// translate([0,0,20]) igus_pillow_block(bolts=false, bolt_protrusion=0);
// translate([0,0,-17]) carriage_plate(length=62);
// POM ACME leadscrew nut
// ======================
module POM_nut(){
cylinder(r=25.4/2,h=3.81, $fn=32);
cylinder(r=12.07/2,h=19.05, $fn=32);
}
// Rubber foot
// ===========
module rubber_foot(){
color([0.3,0.2,0.2])
difference(){
// Base part
cube([20,20,rubber_foot_height], center=true);
// Side angle cuts
translate([0,10,0]) rotate([-10,0,0]) cube([21,3,15], center=true);
translate([0,-10,0]) rotate([10,0,0]) cube([21,3,15], center=true);
translate([-10,0,0]) rotate([0,-10,0]) cube([3,21,15], center=true);
translate([10,0,0]) rotate([0,10,0]) cube([3,21,15], center=true);
}
}
// 20-tooth GT2 pulley
// ===================
module GT2_pulley(){
// 20-tooth GT2 pulley
color([0.7,0.7,0.7])
difference(){
union(){
// Toothy part
cylinder(r=6,h=8);
// Rims
translate([0,0,0]) cylinder(r=7.5,h=1);
translate([0,0,7]) cylinder(r=7.5,h=1);
// Top part where the set screws go
translate([0,0,8]) cylinder(r=4.5,h=9);
}
// Hole for motor shaft
translate([0,0,-1]) cylinder(r=2.5,h=21);
}
}
// GT2 belt
// ========
module GT2_belt(length=200, pulley_diameter=14, bend_position=0, bend_offset=0){
color([0.1,0.1,0.1])
difference(){
// Belt base
union(){
translate([0,-pulley_diameter/2-1,0]) cube([length,pulley_diameter+2,6]);
translate([length,0,0]) cylinder(r=pulley_diameter/2+1,h=6);
translate([0,0,0]) cylinder(r=pulley_diameter/2+1,h=6);
if(bend_position > 0){
// Make a belt with a "T" shape to accomodate a motor and two idlers
translate([bend_position-(pulley_diameter/2)-1,0,0]) cube([pulley_diameter+2,bend_offset,6]);
translate([bend_position,bend_offset,0]) cylinder(r=pulley_diameter/2+1,h=6);
}
}
// Get rid of the interior to make it look like a belt :)
union(){
translate([0,-pulley_diameter/2,-0.5]) cube([length,pulley_diameter,7]);
translate([length,0,-0.5]) cylinder(r=pulley_diameter/2,h=7);
translate([0,0,-0.5]) cylinder(r=pulley_diameter/2,h=7);
if(bend_position > 0){
// Cutouts for the extra part
translate([bend_position-(pulley_diameter/2),0,-0.5]) cube([pulley_diameter,bend_offset,7]);
translate([bend_position,bend_offset,-0.5]) cylinder(r=pulley_diameter/2,h=7);
}
}
}
}
// 623 bearing
// ===========
module 623_bearing(){
color([0.5,0.5,0.5])
difference(){
cylinder(r=5,h=4,center=true);
cylinder(r=1.5,h=6,$fn=16,center=true);
}
}
// 608 bearing
// ===========
module 608_bearing(){
color([0.5,0.5,0.5])
difference(){
cylinder(r=11,h=7,center=true);
cylinder(r=4,h=8,$fn=16,center=true);
}
}
// Hobbed gear
// ==========
module hobbed_gear(){
// Hobbed gear
color([0.5,0.5,0.5])
difference(){
cylinder(r=13/2, h=11, $fn=32);
translate([0,0,3]) rotate_extrude(convexity=10, $fn=32)
translate([7.5, 0, 0])
circle(r=2, $fn=16);
}
}
// Stepper motor
// =============
module NEMA_17_motor(motor_length=60, shaft_length=25, shaft_diameter=5){
difference(){
color([0.1,0.1,0.1])
// Main body
rotate([0,180,270]) cube([42,42,length]);
// Screw holes
translate([5.5,5.5,-9]) cylinder(r=1.5,h=10,$fn=8);
translate([36.5,5.5,-9]) cylinder(r=1.5,h=10,$fn=8);
translate([5.5,36.5,-9]) cylinder(r=1.5,h=10,$fn=8);
translate([36.5,36.5,-9]) cylinder(r=1.5,h=10,$fn=8);
// Corner bevels
translate([0,0,-length/2]) rotate([0,0,45]) cube([7,7,length+2], center=true);
translate([42,0,-length/2]) rotate([0,0,45]) cube([7,7,length+2], center=true);
translate([0,42,-length/2]) rotate([0,0,45]) cube([7,7,length+2], center=true);
translate([42,42,-length/2]) rotate([0,0,45]) cube([7,7,length+2], center=true);
}
// Top round bit
difference(){
color([0.1,0.1,0.1])
translate([21,21,0]) cylinder(r=11,h=2, $fn=32);
translate([21,21,0]) cylinder(r=5,h=4, $fn=32);
}
// Shaft
color([0.5,0.5,0.5])
translate([21,21,0]) cylinder(r=shaft_diameter/2,h=shaft_length, $fn=16);
}
module x_carriagestruder(visualizations=false){
if (visualizations){
// Motor
translate([0,21,27]) rotate([180,-0,0]) NEMA_17_motor(length=60, shaft_diameter=5);
// Hobbed gear
translate([21,0,17.75]) rotate([0,180,0]) hobbed_gear();
// Idler in extruder
translate([36.5,-15.5,10.5]) idler();
// M3x40 screw to retain and tension the idler
color([0.5,0.5,0.5])
translate([1,15,16.5]) rotate([90,0,0]) union(){
cylinder(r=1.5, h=45, $fn=16);
translate([0,0,45]) cylinder(r=2.5, h=3, $fn=16);
}
// Idler screw/spring retainer
translate([-5,-20.2,16.5]) rotate([-80,270,0]) spring_retainer();
// Right belt clamp
translate([-1.5,0,9]) belt_clamp(length=5.5, grooves=false);
// Left belt clamp
translate([58.5,0,20]) rotate([0,180,0]) belt_clamp(length=7, grooves=true);
// Ram
translate([54,-3.25,13]) rotate([-90,0,90]) ram();
// Groovemount plate for fastening the hot end
translate([-1,21,25]) rotate([-90,0,0]) groovemount_plate();
}
difference(){
union(){
difference(){
union(){
// Carriage plate
translate([0,0,-17]) rotate([0,0,-90]) carriage_plate(length=62);
// Main extruder body
translate([0,-21,4]) cube([42,42,23]);
// Idler tensioner nut trap protrusion
translate([1,21,16.5]) rotate([90,0,0]) cylinder(r=4, h=12.1, $fn=16);
// Cable strain relief bracket
translate([46,17,0]) cube([4,4,27]);
translate([40,17,23]) cube([10,4,4]);
translate([40,17,13]) cube([10,4,2]);
}
// M3 screw holes for motor
for(i=[ [5.5,15.5,-1],
[36.5,-15.5,-1],
[36.5,15.5,-1]
]){
// Screw hole
translate(i) cylinder(r=m3r, h=30, $fn=12);
// Hole for recessed screw head, so that a 25mm screw will be long enough
translate(i) cylinder(r=3.1, h=6.5, $fn=12);
}
// Cutout for motor's round protrusion
translate([21,0,24.5]) cylinder(r=12, h=3);
// Cutouts for quadrant where idler goes
translate([-1,-22,4]) cube([26.5,27,24]);
translate([-1,-3.1,4]) cube([22,10,24]);
// small cutout for screw head for right side belt clamp
translate([-0.5,5,8]) cylinder(r=4, h=21, $fn=16);
// Cutout for idler hinge pocket
translate([25.8,-22,9.5]) cube([14,10,12]);
translate([36.5,-15.5,9.5]) cylinder(r=4.9, h=11, $fn=32);
// Hole for idler tensioner nut trap
translate([-5,12,13.5]) cube([10,4,m3nr*2]);
translate([-1,6,14.75]) cube([4,16,m3r*2]);
translate([-1,6,14.75]) rotate([0,0,-10]) cube([4,16,m3r*2]);
// hole for motor shaft and hobbed gear
translate([21,0,-1]) cylinder(r=7, h=32, $fn=32);
// Hole for 3mm filament
translate([14.25,22,14.75]) rotate([90,0,0]) cylinder(r=3.9/2, h=44, $fn=12);
// Hole for groovemount hot end
translate([14.25,29,14.75]) rotate([90,0,0]) cylinder(r=8.4, h=13, $fn=14);
// Holes for hot end retainer plate (self-tapping)
translate([3.5,29,11.5]) rotate([90,0,0]) cylinder(r=1.5, h=13, $fn=14);
translate([24.5,29,19]) rotate([90,0,0]) cylinder(r=1.5, h=13, $fn=14);
}
// Left side belt holder & tensioner tower
difference(){
translate([55,-7.5,4]) cube([7,15,13]);
// Hole for belt to pass through
translate([54,-3.5,7]) cube([9,7,3]);
// Channel for belt tensioner screw
translate([50,0,13]) rotate([0,90,0]) cylinder(r=m3r, h=20, $fn=12);
// Nut trap for belt tensioner screw
translate([54.5,0,13]) rotate([30,0,0]) rotate([0,90,0]) cylinder(r=m3nr, h=3, $fn=6);
}
// Left side belt tensioner tower supports
for(i=[1,-1]){
translate([41,5.5*i-2,13.5]) cube([15,4,3.5]);
}
// Right side belt holder grooved bottom
difference(){
translate([-4.25,-8,0]) cube([5.5,16,8]);
// Grooves for teeth
for(i=[1,3,5]){
translate([-4.5+i,-3.5,7]) cube([1,7,2.5]);
}
}
}
// Right belt clamp screw holes (undersized; self-tapping)
for(i=[1,-1]){
translate([-1.5,5*i,-1]) cylinder(r=1.57, h=15, $fn=8);
}
// Left belt clamp screw holes (undersized; self-tapping)
for(i=[1,-1]){
// screw holes through bottom plate; self-tapping
translate([58.5,-5*i,-1]) cylinder(r=1.57, h=25, $fn=8);
}
}
}
module idler(){
difference(){
union(){
// Point of rotation
cylinder(r=4.5, h=10, $fn=32);
// Horizontal arm
translate([-28,-4.5,0]) cube([28,7,10]);
// Elbow
translate([-28,-1.5,0]) cylinder(r=3, h=10, $fn=32);
// Vertical arm
translate([-31,-1.5,0]) cube([7,15.5,10]);
// Rounded end
translate([-27.5,14,0]) cylinder(r=3.5, h=10, $fn=32);
// Tensioner screw protrusion
difference(){
translate([-39,-1,0]) cube([11,9,11]);
// Circular cutout
translate([-39,8,-1]) scale([1,0.7,1]) cylinder(r=8, h=13, $fn=32);
// Channel for the screw
translate([-38.8,-2,4.25]) cube([6,10,3.5]);
// Diagonal cutout to help retain screw head
translate([-38,-10,-1]) rotate([0,0,10]) cube([14,9,13]);
}
}
// Hole for point of rotation
translate([0,0,-1]) cylinder(r=m3r, h=13, $fn=12);
// Lower bearing axle hole
translate([-27.5,14,-1]) cylinder(r=1.55, h=4, $fn=8);
// Upper bearing axle hole
translate([-27.5,14,7]) cylinder(r=m3r, h=4, $fn=12);
// Room for the bearing
translate([-33,8.5,2.25]) cube([10,5.5,4.5]);
// Thin rounded wall for built-in support
translate([-27.5,14,2.25]) cylinder(r=3.3, h=4.5, $fn=32);
// Room for the filament
translate([-24,-6,2.5]) cube([4.5,11,4]);
// Shorten the top bearing holder protrusion
// so it will accept an M3x8 screw
translate([-33,9.5,8.25]) cube([10,10,4.5]);
}
// %translate([-28,14,6.5]) 623_bearing();
}
module belt_clamp(length=5.5, grooves=false){
difference(){
translate([-length/2,-8,0]) cube([length,16,2.5]);
// M3 screw holes
for(i=[1,-1]){
translate([0,5*i,-2]) cylinder(r=m3r, h=15, $fn=12);
}
if(grooves){
for(i=[1,3,5]){
translate([-3.5+i,-3.5,2]) cube([1,7,2.5]);
}
}
}
}
module ram(){
difference(){
// Half-cylinder
rotate([0,90,0]) cylinder(r=4, h=6.5, $fn=32);
translate([-0.75,-4,-5]) cube([8,8,5]);
// Hole in bottom for M3 screw
translate([3.25,0,-0.05]) cylinder(r=1.75, h=3, $fn=12);
}
}
module groovemount_plate(){
difference(){
union(){
// Main body
translate([0,0,0]) cube([30,17,4.7]);
// Protrusion for fan holder
translate([0,-7,0]) cube([30,7,11]);
}
// Main rounded groovemount cutout
translate([9,10,-1]) cube([12,12,7]);
translate([15,10,-1]) cylinder(r=6, h=7, $fn=24);
// Screw holes (oversized, not self-tapping)
translate([4.5,13.5,-1]) cylinder(r=m3r, h=8, $fn=12);
translate([25.5,6,-1]) cylinder(r=m3r, h=8, $fn=12);
// Rounded cutout for 30mm fan
translate([15,1,19]) rotate([90,0,0]) cylinder(r=14, h=9, $fn=24);
// 30mm fan screw holes (self-tapping)
for(i=[3,27]){
translate([i,1,8]) rotate([90,0,0]) cylinder(r=1.5, h=9, $fn=14);
}
}
}
module spring_retainer(){
difference(){
// Main body
union(){
cylinder(r=5, h=3, $fn=16);
translate([-5,0,0]) cube([10,10,3]);
}
// Hole for screw
translate([0,6,-1]) rotate([-10,0,0]) cylinder(r=m3r, h=6, $fn=16);
// Round off one of the edges
translate([0,10,3]) rotate([45,0,0]) cube([12,2,2], center=true);
}
}
// x_carriagestruder(visualizations=false);
// translate([-25,-4,0]) rotate([0,0,-90]) idler();
// translate([-9,10,0]) belt_clamp(length=5.5, grooves=false);
// translate([-9,-7,0]) belt_clamp(length=7, grooves=true);
// translate([-20,10,0]) ram();
translate([-35,-35,0]) groovemount_plate(fan=true);
// translate([-20,-25,0]) spring_retainer();
// Hot end
// translate([0,-19,0]) union(){
// translate([14.25,55,14.75]) rotate([90,0,0]) cylinder(r=8, h=10, $fn=14);
// translate([14.25,40,14.75]) rotate([90,0,0]) cylinder(r=8, h=5, $fn=14);
// translate([14.25,45,14.75]) rotate([90,0,0]) cylinder(r=6, h=10, $fn=14);
// }