3dprinting/spoolmount
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Complex screw cutout

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This commit is contained in:
Ian Gulliver
2024-07-11 12:07:13 -07:00
parent 2a681745e2
commit b0a3b60766
4 changed files with 57 additions and 38 deletions
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5
v1/scad/lib/hexagon.scad Normal file
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@@ -0,0 +1,5 @@
module hexagon(inradius) {
circle(r=2 * inradius / sqrt(3), $fn=6);
}
hexagon(inradius=2.8);

35
v1/scad/lib/prusa_enclosure_mount.scad
View File

@@ -1,4 +1,5 @@
use <spoolmount_a.scad>
use <screw_hole.scad>
use <torus.scad>
module prusa_enclosure_mount(angle) {
@@ -25,20 +26,8 @@ module prusa_enclosure_mount(angle) {
}
// Through screw hole
translate([120, 0, -1])
cylinder(h=20, d=3.2, $fn=50);
// Hex nut / screw head cutout
translate([120, 0, 18 - (2.6 / 2)])
linear_extrude(2.61, center=true)
polygon(points=[
[-2.8, 1.6175],
[0, 3.235],
[2.8, 1.6175],
[2.8, -1.6175],
[0, -3.235],
[-2.8, -1.6175],
]);
translate([120, 0, 0])
screw_hole(h=18);
// Underside washer alignment cutouts
for (y = [-4, 4]) {
@@ -68,15 +57,15 @@ module prusa_enclosure_mount(angle) {
union() {
// Top core
translate([0, 0, 2.5])
cylinder(h=15.5, r=42, $fn=200);
cylinder(h=15, r=42, $fn=200);
// Bottom core
cylinder(h=18, r=40.25, $fn=200);
cylinder(h=5, r=40.25, $fn=200);
}
// Center through cutout
translate([0, 0, -1])
cylinder(h=20, r=25, $fn=200);
cylinder(h=20, r=25.1, $fn=200);
// Bottom cutout
translate([0, 0, -1])
@@ -93,6 +82,18 @@ module prusa_enclosure_mount(angle) {
}
}
// Spool ring weight reduction holes
for (a = [0 : 20 : 340]) {
rotate([0, 0, a])
translate([0, 33, 0]) {
translate([0, 0, -1])
cylinder(h=9.5, d=9, $fn=50);
translate([0, 0, 8.49])
cylinder(h=4.5, d1=9, d2=0, $fn=50);
}
}
// Weight reduction holes rows 1/5
for (x = [44.5 : 12 : 105]) {
for (y = [-20 : 40 : 20]) {

30
v1/scad/lib/screw_hole.scad Normal file
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@@ -0,0 +1,30 @@
use <hexagon.scad>
module screw_hole(h) {
// Through screw hole
translate([0, 0, -0.01])
cylinder(h=h, d=3.2, $fn=50);
// Hex nut cutout
translate([0, 0, h - 3])
hull() {
// Large hex nut
translate([0, 0, 3])
linear_extrude(0.01)
hexagon(inradius=2.8);
// Small hex nut
linear_extrude(0.01)
hexagon(inradius=2.55);
}
// Screw head cutout
translate([0, 0, h - 3])
cylinder(h=2.61, d=5.5, $fn=50);
// Bottom screw thread protrusion cutout
translate([0, 0, -0.01])
cylinder(h=1.01, d=4.4, $fn=100);
}
screw_hole(h=10);

25
v1/scad/objects/ptfe_guide.scad
View File

@@ -1,3 +1,5 @@
use <../lib/screw_hole.scad>
module ptfe_guide() {
translate([0, 0, 5])
difference() {
@@ -13,27 +15,8 @@ module ptfe_guide() {
}
// Screw hole
{
// Top hex nut / screw cap head cutout
translate([0, 0, 3.7])
linear_extrude(2.61, center=true)
polygon(points=[
[-2.8, 1.6175],
[0, 3.235],
[2.8, 1.6175],
[2.8, -1.6175],
[0, -3.235],
[-2.8, -1.6175],
]);
// Through hole
translate([0, 0, 0])
cylinder(h=10, d=3.2, center=true, $fn=100);
// Bottom screw thread protrusion cutout
translate([0, 0, -4.5])
cylinder(h=1.01, d=4.4, center=true, $fn=100);
}
translate([0, 0, -5])
screw_hole(10);
// PTFE holes
for (x = [-18, -10, 10, 18]) {