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glass_bed_support_parts.scad
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glass_bed_support_parts.scad
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include <config.scad>
use <GDMUtils.scad>
use <joiners.scad>
use <acme_screw.scad>
$fa = 2;
$fs = 1;
module glass_bed_support1()
{
glass_xoff = (2*platform_length + 2*20 - joiner_width - glass_length) / 2;
backing_diam = adjust_screw_diam + 2*3;
l = (glass_width-platform_width)/2 + 2;
w = glass_xoff + backing_diam/2 + 10;
h = glass_thick + 3;
l2 = l - backing_diam/2;
spring_h = 12;
spring_w = 60;
spring_thick = 1.4;
color("Chocolate")
prerender(convexity=10)
down(platform_height/2-0.05) {
difference() {
union() {
// Joiner.
joiner(h=platform_height, w=joiner_width, l=l, a=joiner_angle);
// Clip platform
fwd(l2) {
up(platform_height/2+spring_h-spring_thick/2) {
cube(size=[backing_diam, backing_diam, spring_thick], center=true);
up(h/2-0.25) {
difference() {
left(w/2-backing_diam/2) {
cube(size=[w, backing_diam, h], center=true);
}
// glass mount slot
left(50/2+glass_xoff-printer_slop) {
back(2-printer_slop) {
cube(size=[50, backing_diam, glass_thick], center=true);
up(glass_thick-0.05) back(1) left(1) cube(size=[50, backing_diam, glass_thick], center=true);
}
}
// Screw head clearance
up(1.5) right(2/2) cube(size=[adjust_screw_knob_d+3, backing_diam+1, h], center=true);
}
}
}
}
// Screw hole backing
fwd(l2) {
cylinder(d=backing_diam, h=platform_height, center=true);
}
// Leaf spring
spring_r = spring_h/4 + spring_w * spring_w / 4 / spring_h;
fwd(l2) {
up(platform_height/2+spring_h/2-spring_thick) {
xrot(90) {
difference() {
yflip_copy() {
fwd(0.01) {
back_half(spring_r*3) {
fwd(spring_r-spring_thick/2-spring_h/2) {
tube(h=backing_diam, r=spring_r, wall=spring_thick, center=true);
}
}
}
}
xspread(spring_w+10) cube(size=[10, spring_h, backing_diam+1], center=true);
}
}
}
}
}
fwd(l2) {
// Threaded hole
acme_threaded_rod(d=adjust_screw_diam+2*printer_slop, l=platform_height*1.2, thread_depth=adjust_thread_depth, pitch=adjust_screw_pitch, thread_angle=adjust_screw_angle);
// bevel threaded hole
up(platform_height/2+0.2) {
cylinder(d1=adjust_screw_diam-2*adjust_thread_depth, d2=adjust_screw_diam+2, h=2*adjust_thread_depth, center=true);
}
// gap
cube(size=[adjust_screw_diam/2, adjust_screw_diam+2*3+1, platform_height*1.1], center=true);
// Unthreaded hole
up(platform_height/2+spring_h) {
cylinder(d=adjust_screw_diam+2*printer_slop, h=h*2, center=true);
}
}
}
}
}
//!glass_bed_support1();
module glass_bed_support2()
{
glass_xoff = (2*platform_length + 2*20 - joiner_width - glass_length) / 2;
backing_diam = adjust_screw_diam + 2*3;
l = (glass_width-platform_width)/2 + 2;
w = glass_xoff + backing_diam/2 + 10;
h = glass_thick + 3;
l2 = l - backing_diam/2;
spring_h = 12;
spring_w = 60;
spring_thick = 1.5;
color("Chocolate")
prerender(convexity=10)
down(platform_height/2-0.05) {
difference() {
union() {
// Joiner.
yrot(180) joiner(h=platform_height, w=joiner_width, l=l, a=joiner_angle);
// Clip platform
fwd(l2) {
up(platform_height/2+spring_h-spring_thick/2) {
cube(size=[backing_diam, backing_diam, spring_thick], center=true);
up(h/2-0.25) {
difference() {
right(w/2-backing_diam/2) {
cube(size=[w, backing_diam, h], center=true);
}
// glass mount slot
right(50/2+glass_xoff-printer_slop) {
back(2-printer_slop) {
cube(size=[50, backing_diam, glass_thick], center=true);
up(glass_thick-0.05) back(1) right(1) cube(size=[50, backing_diam, glass_thick], center=true);
}
}
// Screw head clearance
up(1.5) left(2/2) cube(size=[adjust_screw_knob_d+3, backing_diam+1, h], center=true);
}
}
}
}
// Screw hole backing
fwd(l2) {
cylinder(d=backing_diam, h=platform_height, center=true);
}
// Leaf spring
spring_r = spring_h/4 + spring_w * spring_w / 4 / spring_h;
fwd(l2) {
up(platform_height/2+spring_h/2-spring_thick) {
xrot(90) {
difference() {
yflip_copy() {
fwd(0.01) {
back_half(spring_r*3) {
fwd(spring_r-spring_thick/2-spring_h/2) {
tube(h=backing_diam, r=spring_r, wall=spring_thick, center=true);
}
}
}
}
xspread(spring_w+10) cube(size=[10, spring_h, backing_diam+1], center=true);
}
}
}
}
}
fwd(l2) {
// Threaded hole
acme_threaded_rod(d=adjust_screw_diam+2*printer_slop, l=platform_height*1.2, thread_depth=adjust_thread_depth, pitch=adjust_screw_pitch, thread_angle=adjust_screw_angle);
// bevel threaded hole
up(platform_height/2+0.2) {
cylinder(d1=adjust_screw_diam-2*adjust_thread_depth, d2=adjust_screw_diam+2, h=2*adjust_thread_depth, center=true);
}
// gap
cube(size=[adjust_screw_diam/2, adjust_screw_diam+2*3+1, platform_height*1.1], center=true);
// Unthreaded hole
up(platform_height/2+spring_h) {
cylinder(d=adjust_screw_diam+2*printer_slop, h=h*2, center=true);
}
}
}
}
}
//!glass_bed_support2();
module glass_bed_support_parts() { // make me
l = (glass_width-platform_width)/2 + 2;
zrot_copies([0, 180]) {
up(l) {
back(20) {
left(40) xrot(90) glass_bed_support2();
right(40) xrot(90) glass_bed_support1();
}
}
}
}
glass_bed_support_parts();
// vim: noexpandtab tabstop=4 shiftwidth=4 softtabstop=4 nowrap