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include <stuff.scad>;
hb_w = 16; // width (along X axis)
hb_l = 20; // length (along Y axis)
hb_h = 11.5; // height (guess!)
hb_d = 6; // heatbreak diameter
n_offset_w = 8; // nozzle offset from the left
n_offset_l = 4.5; // nozzle offset from the front
n_d = 7/cos(30); // nozzle (outermost) diameter
hs_offset_w = 8; // heater screw offset from the left
hs_offset_l = 17.5; // heater screw offset from the front
hs_d = 5.7; // heater screw diameter
hs_t = 1.5; // heater screw head thickness
ts_offset_l = 3.5; // thermistor screw offset from the front
ts_offset_h = 4.8; // thermistor screw offset from the bottom
ts_d = 7; // thermistor screw diameter
ts_t = 2.6; // thermistor screw head thickness
c_offset_l = 11.5; // cartrdige offset from the from
c_offset_h = 4; // cartridge offset from the bottom
c_d = 6.1; // cartrdige diameter
c_t = 1.7; // cartridge protrusion length (thickness)
c_tw = 4.3; // thickness of the other cartridge end with wires
sv=hs_t+ss;
the_w = ss + max(c_tw,ts_t)+hb_w+c_t + ss;
the_l = ss + hb_l + ss;
the_h = sv + hb_h + ss;
use <bubbles.scad>;
module heatershape(bubbled=true) {
m = n_offset_l-hb_d/2;
module topholes(h) {
hull() {
for(sx=[-1,1]) for(sy=[-1,1])
translate([hb_w/2+sx*(hb_w/2-m-hb_d/2),hb_l/2+sy*(hb_l/2-m-hb_d/2),0])
cylinder(d=hb_d,h=h,$fn=24);
}
translate([-c_tw,c_offset_l-c_d/2,0])
cube(size=[hb_w/2+c_tw,c_d,h]);
}
// main body and protrusion
// body
cube(size=[hb_w,hb_l,hb_h]);
// protrusion
translate([0,0,hb_h]) {
// irrelevant, because we print upside-down: mo = m+max(c_t,c_tw)+ss; th=3*ss;
mo = protrude/4; th = protrude/2;
translate([0,0,-1]) topholes(h=ss+protrude);
translate([0,0,ss+protrude-mo-th]) hull() {
topholes(h=layer_height);
translate([-c_tw-ss,-ss,mo])
cube(size=[the_w,the_l,th]);
}
}
// nozzle
translate([n_offset_w,n_offset_l,1]) mirror([0,0,1]) cylinder(d=n_d,h=sv+1,$fn=24);
// heater screw
translate([hs_offset_w,hs_offset_l,1]) mirror([0,0,1]) cylinder(d=hs_d,h=hs_t+1,$fn=24);
// thermistor screw
translate([1,ts_offset_l,ts_offset_h]) rotate([0,-90,0]) cylinder(d=ts_d,h=ts_t+1,$fn=24);
// cartridge on the right
translate([hb_w-1,c_offset_l,c_offset_h]) rotate([0,90,0]) cylinder(d=c_d,h=c_t+1,$fn=24);
// cartrdige on the left
translate([1,c_offset_l,c_offset_h]) rotate([0,-90,0]) cylinder(d=c_d,h=c_tw+1,$fn=24);
translate([-c_tw,c_offset_l-c_d/2,c_offset_h]) cube(size=[c_tw+1,c_d,hb_h-c_offset_h]);
if(bubbled) {
for(y=[0,hb_l]) translate([0,y,0]) bubbles(size=[hb_w,ss/2,hb_h]);
rotate([0,0,90]) bubbles(size=[hb_l,(c_tw+ss)/2,hb_h],d=(c_tw+ss)/2,s=1.1*(c_tw+ss)/2);
translate([hb_w,0,0]) rotate([0,0,90]) bubbles(size=[hb_l,(c_t+ss)/2,hb_h],d=(c_t+ss),s=1.1*(c_t+ss));
rotate([-90,0,0]) bubbles(size=[hb_w,sv/2,hb_l]);
}
}
function vc(d,h) = PI*pow(d/2,2)*h; // cylinder volume
vol_ = the_w*the_l*the_h
- hb_w*hb_l*hb_h // heater block
- vc(d=n_d,h=sv) // nozzle
- vc(d=hs_d,h=hs_t) // heater screw
- vc(d=ts_d,h=ts_t) // thermistor_screw
- vc(d=c_d,h=c_t) // cartridge on the right
- vc(d=c_d,h=c_tw)/2 - c_d*c_tw*(hb_h-c_offset_h) // cartridge on the left
;
vol = vol_*1.2;
echo("volume",vol);
use <view.scad>;
use <mold.scad>;
view="*";
view(view=view,volume=vol) {
mold(size=[the_w,the_l,the_h],s=ms,v_protrude=protrude,introffset=ss+c_offset_l);
translate([ms+c_tw+ss,ms+ss,ms+sv]) heatershape();
translate([ms+epsilon,ms+epsilon,ms+epsilon]) cube(size=[the_w-2*epsilon,the_l-2*epsilon,the_h-2*epsilon]);
}
/* vim:set ai sw=1: */
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