3dprinting/spoolmount
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Hollow extension, rounded inner edges

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This commit is contained in:
Ian Gulliver
2024-07-10 19:09:18 -07:00
parent 1d3eb8c0b0
commit 1537b8bd1b
4 changed files with 92 additions and 29 deletions
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2
extension_twist_25mm.scad → extension_twist_ccw_25mm.scad
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@@ -1,3 +1,3 @@
use <lib/extension_twist.scad>
extension_twist(h=25);
extension_twist(h=25, twist=30);

23
lib/extension_twist.scad
View File

@@ -1,6 +1,6 @@
use <spoolmount_twist.scad>
module extension_twist(h) {
module extension_twist(h, twist) {
assert(h >= 10, "minimum extension height is 10");
// Bottom spoolmount twist
@@ -8,12 +8,23 @@ module extension_twist(h) {
// Top spoolmount twist
translate([0, 0, h])
rotate([180, 0, 30])
rotate([180, 0, twist])
spoolmount_twist();
// Center cylinder
translate([0, 0, 5])
cylinder(h=h - 10, r=25, $fn=200);
difference() {
union() {
// Outer body cylinder
translate([0, 0, 4.5])
cylinder(h=h - 9, r=25, $fn=200);
// Inner body cylinder
translate([0, 0, 2.5])
cylinder(h=h - 5, r=23, $fn=200);
}
extension_twist(h=25);
// Inner through cutout
cylinder(h=h, r=16.25, $fn=200);
}
}
extension_twist(h=25, twist=30);

32
lib/spoolmount.scad
View File

@@ -7,19 +7,28 @@ module spoolmount() {
cylinder(h=5, r=42, $fn=200);
// Central through hole
cylinder(h=5, r=25.1, $fn=200);
// Bottom slightly wider cutout
translate([0, 0, -1])
cylinder(h=7, r=25.1, $fn=200);
cylinder(h=1.5, r=25.45, $fn=200);
// Top slightly wider cutout
translate([0, 0, 4.5])
cylinder(h=1.5, r=25.45, $fn=200);
}
for (a = [45 : 90 : 335]) {
// Locking bumps
rotate([0, 0, a - 10])
rotate_extrude(angle=20, $fn=200)
translate([22.6, 0, 0])
translate([23.1, 0, 0])
polygon(points=[
[2.5, 0],
[2.0, 0],
[2.0, 0.5],
[0, 2.5],
[2.5, 5],
[2.0, 4.5],
[2.0, 5],
]);
// Rounded bump ends
@@ -30,9 +39,9 @@ module spoolmount() {
rotate_extrude($fn=200)
translate([5, 0, 0])
polygon(points=[
[0, 0],
[2.5, 2.5],
[0, 5],
[0, 0.5],
[2.0, 2.5],
[0, 4.5],
]);
}
}
@@ -41,6 +50,15 @@ module spoolmount() {
translate([0, 0, 2.5]) {
torus(r_major=42, r_minor=2.5, xs=0.7, $fn=200);
}
// Rounded inner edges
{
translate([0, 0, 0.5])
torus(r_major=25.45, r_minor=0.5, xs=0.7, $fn=200);
translate([0, 0, 4.5])
torus(r_major=25.45, r_minor=0.5, xs=0.7, $fn=200);
}
}
spoolmount();

58
lib/spoolmount_twist.scad
View File

@@ -1,15 +1,40 @@
use <torus.scad>
module spoolmount_twist() {
difference() {
union() {
difference() {
// Cylinder body
cylinder(h=5, r=25, $fn=200);
union() {
// Core cylinder body
translate([0, 0, 0.5])
cylinder(h=4, r=25, $fn=200);
// Slightly narrower bottom/top body
cylinder(h=5, r=24.65, $fn=200);
// Bottom outer rounded edge
intersection() {
cylinder(h=0.5, r=25, $fn=200);
translate([0, 0, 0.5])
torus(r_major=24.65, r_minor=0.5, xs=0.7, $fn=200);
}
// Top outer rounded edge
intersection() {
translate([0, 0, 4.5])
cylinder(h=0.5, r=25, $fn=200);
translate([0, 0, 4.5])
torus(r_major=24.65, r_minor=0.5, xs=0.7, $fn=200);
}
}
for (a = [45 : 90 : 335]) {
// Slide bump entrance cutout
rotate([0, 0, a - 13])
rotate_extrude(angle=26, $fn=200)
translate([22.3, 0, 0])
translate([23, 0, 0])
polygon(points=[
[0, -1],
[3, -1],
@@ -20,25 +45,30 @@ module spoolmount_twist() {
// Slide cutout
rotate([0, 0, a - 40])
rotate_extrude(angle=80, $fn=200)
translate([22.5, 0, 0])
translate([23, 0, 0])
polygon(points=[
[3, 0],
[2.5, 0],
[3, 0.5],
[2, 0.5],
[0, 2.5],
[2.5, 5],
[3, 5],
[2, 4.5],
[3, 4.5],
]);
}
// Inner cutout
translate([0, 0, -1])
cylinder(h=7, r=18, $fn=200);
}
// Locking bumps
intersection() {
cylinder(h=5, r=25, $fn=200);
translate([0, 0, 0.5])
cylinder(h=4, r=25, $fn=200);
for (a = [45 : 90 : 335]) {
for (o = [-19.2, 19.2]) {
for (o = [-19.15, 19.15]) {
rotate([0, 0, a + o])
translate([0, 23.4, 0]) {
translate([0, 23.9, 0]) {
translate([0, 0, 1])
rotate([45, 0, 0])
cylinder(h=3.5, d=1.1, center=true, $fn=50);
@@ -56,7 +86,7 @@ module spoolmount_twist() {
for (a = [45 : 90 : 335]) {
for (o = [-40, -20, 20, 40]) {
rotate([0, 0, a + o])
translate([0, 30, 0])
translate([0, 30.5, 0])
scale([0.2, 1.0, 1.0])
rotate_extrude($fn=200)
translate([5, 0, 0])
@@ -68,6 +98,10 @@ module spoolmount_twist() {
}
}
}
// Inner rounded edge
translate([0, 0, 2.5])
torus(r_major=18, r_minor=2.5, xs=0.7, $fn=200);
}
spoolmount_twist();