lukas/DIY_3D_Printer
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move holes and helpers into seperate dir

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holder for extruder and hexagonal screw mounts
This commit is contained in:
lukas 2021-09-09 21:19:54 +02:00
parent 7bb43947b1
commit e94e6b69f5
8 changed files with 142 additions and 39 deletions
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2
Motorhalter.scad
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@ -1,4 +1,4 @@
use <Holes.scad>;
use <helpers/Holes.scad>;
$fn = 50;

2
SliderLeft.scad
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@ -1,5 +1,5 @@
use <Motorhalter.scad>;
use <Holes.scad>;
use <helpers/Holes.scad>;
MountSize = 40;
BodyWidth = 55;

9
Slider_back.scad
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@ -1,8 +1,9 @@
use <Holes.scad>;
use <helpers/Holes.scad>;
include <Slider_dims.scad>;
difference() {
Slider_back();
module Slider_back() {
difference() {
union() {
body();
zcube();
@ -21,8 +22,10 @@ difference() {
// add the 4 mountholes
MountHoles();
}
}
module body() {
edgeRound=1.5;

5
Slider_dims.scad
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@ -12,8 +12,9 @@ heightMain=90;
width=60;
depth=10;
bearingLength=24;
bearingDiam=15;
// bearing dimensions with little offsets to fit
bearingLength=24+.4;
bearingDiam=15+.2;
twoRodSize=2.2;
middleCylinderRad=2.5;

101
Slider_front.scad
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@ -1,9 +1,19 @@
use <Slider_back.scad>
use <Holes.scad>
use <helpers/Holes.scad>
use <helpers/Helpers.scad>
include <Slider_dims.scad>
difference() {
roundedExtruderHolder=true;
Slider_front();
module Slider_front() {
difference() {
union() {
// use same body as in back slider
translate([0,-10,0]) body();
Extruderholder();
}
dist=(heightMain-holeDist)/2;
translate([0,0,dist]) bearingHalfHole();
@ -15,15 +25,92 @@ difference() {
translate([0, -5, heightMain/2]) cube([width, 5, rollWithRodDist]);
// add the 4 mountholes
translate([0, -5, 0]) MountHolesFront();
translate([0, -10, 0]) MountHolesFront();
// cut extruder holes
Extruderholes();
}
}
// Similar function from Slider_back without the hexagonal holes
module MountHolesFront() {
translate([holeLeftRightMargin,-5,holeTop]) rotate([0,0,90]) #M3Hole(10);
translate([width-holeLeftRightMargin,-5,holeTop]) rotate([0,0,90]) #M3Hole(10);
translate([holeLeftRightMargin,0,holeTop]) rotate([0,0,90]) {
#M3Hole(10);
M3Head(5);
}
translate([holeLeftRightMargin,-5,holeBottom]) rotate([0,0,90]) #M3Hole(10);
translate([width-holeLeftRightMargin,-5,holeBottom]) rotate([0,0,90]) #M3Hole(10);
translate([width-holeLeftRightMargin,0,holeTop]) rotate([0,0,90]) {
#M3Hole(10);
M3Head(5);
}
translate([holeLeftRightMargin,0,holeBottom]) rotate([0,0,90]) {
#M3Hole(10);
M3Head(3);
}
translate([width-holeLeftRightMargin,0,holeBottom]) rotate([0,0,90]) {
#M3Hole(10);
M3Head(3);
}
}
extruder_diam=21.75;
extruder_flatdist=16;
// offset height needed to place the extruder straight on the surface
extruder_offset=(extruder_diam-extruder_flatdist)/2;
extruder_platform_width=15;
extruder_platform_height=10;
extruder_platform_x=18.25;
module Extruderholder() {
translate([0, -10-extruder_offset, extruder_platform_x+extruder_platform_height/2]) hull() {
translate([width/2 - extruder_platform_width/2, 0, 0])
rotate([-90, 0, 0]) cylinder(d=extruder_platform_height, h=extruder_offset);
translate([width/2 + extruder_platform_width/2, 0, 0])
rotate([-90, 0, 0]) cylinder(d=extruder_platform_height, h=extruder_offset);
if(roundedExtruderHolder) {
// no rounded edges on bottom
translate([width/2 - extruder_platform_width/2 - extruder_platform_height/2, 0, -extruder_platform_height/2])
cube([extruder_platform_width + extruder_platform_height, extruder_offset, extruder_platform_height/2]);
}
}
depth=10;
roundhelperwidth=extruder_diam+3;
difference() {
union() {
// bottom cube
translate([width/2 - roundhelperwidth/2, -10-depth, 0]) cube([roundhelperwidth, depth, 5]);
// the triangle over it
// linear_extrude(roundhelperwidth) #polygon([[0,0],[5,0],[0,5]]); no rounded triangle
translate([width/2 - roundhelperwidth/2, -10, 5]) rotate([0, -90, 180]) roundedTriangle(roundhelperwidth, 5);
}
translate([width/2, -10-extruder_diam/2, 0]) cylinder(d=extruder_diam, h=15, $fn=125);
}
}
module Extruderholes() {
// hole distance from each other
holeDist=14;
translate([width/2 + holeDist/2, 0, extruder_platform_x + extruder_platform_height/2]) {
rotate([0,0,-90]) #M3Hole(15);
rotate([30,0,-90]) #M3Nut(8);
}
translate([width/2 - holeDist/2, 0, extruder_platform_x + extruder_platform_height/2]) {
rotate([0,0,-90]) #M3Hole(15);
rotate([30,0,-90]) #M3Nut(8);
}
}

2
ZMotorHalter.scad
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@ -1,5 +1,5 @@
use <Motorhalter.scad>;
use <Holes.scad>;
use <helpers/Holes.scad>;
$fn = 50;

6
helpers/Helpers.scad Normal file
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@ -0,0 +1,6 @@
module roundedTriangle(length, sidewidth) {
render() difference() {
linear_extrude(length) polygon([[0,0],[sidewidth,0],[0,sidewidth]]);
translate([sidewidth, sidewidth, 0]) cylinder(r=sidewidth, h=length);
}
}

6
Holes.scad → helpers/Holes.scad
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@ -3,6 +3,8 @@ M4HoleDiam = 4.4;
M3NutDiam=6.01+.4;
M3HeadDiam = 5.8;
module M3Hole(thickness) {
rotate([0, 90, 0]) cylinder(h = thickness, d = M3HoleDiam);
}
@ -14,3 +16,7 @@ module M4Hole(thickness) {
module M3Nut(thickness) {
rotate([0, 90, 0]) cylinder(h = thickness, d = M3NutDiam, $fn=6);
}
module M3Head(thickness) {
rotate([0, 90, 0]) cylinder(h = thickness, d = M3HeadDiam);
}