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-rw-r--r--fanduct.scad7
1 files changed, 4 insertions, 3 deletions
diff --git a/fanduct.scad b/fanduct.scad
index 746f753..fa14b7a 100644
--- a/fanduct.scad
+++ b/fanduct.scad
@@ -40,51 +40,52 @@ module fanduct(type=type,ductshape=ductshape) {
// *** duct is all around!
module duct(what) {
if(what=="in") {
sh = fanduct_w+2*fanduct_shell; sv = fanduct_h+2*fanduct_shell;
smax = max(sh,sv);
rotate_extrude($fn=smooth_f)
if(ductshape=="round")
translate([sh/2+fanduct_ir,sv/2])
scale([sh/smax,sv/smax])
circle(d=smax,$fn=4*smax);
else if(ductshape=="square")
translate([fanduct_ir,0])
square([sh,sv]);
}else if(what=="out") {
sh = fanduct_w; sv = fanduct_h;
smax = max(sh,sv);
rotate_extrude($fn=smooth_f)
if(ductshape=="round")
translate([sh/2+fanduct_shell+fanduct_ir,sv/2+fanduct_shell])
scale([sh/smax,sv/smax])
circle(d=smax,$fn=4*smax);
else if(ductshape=="square")
translate([fanduct_ir+fanduct_shell,fanduct_shell])
union() {
- square([fanduct_w,fanduct_h/2]);
- translate([fanduct_w/2,fanduct_h-fanduct_w/2])
- rotate([0,0,90]) circle(d=fanduct_w,$fn=36);
+ square([sh,sv/2]);
+ translate([sh/2,sv/2])
+ scale([sh/smax,sv/smax])
+ circle(d=smax,$fn=36);
}
}
}
// *** bumps for easier position adjustments in line with hotend
module marks(what) {
if(what=="in") {
for(y=[-1,1])
hull() for(z=[0,-fanduct_shell-fanduct_h/2])
translate([0,y*(fanduct_ir+fanduct_shell+fanduct_w/2),fanduct_shell*2+fanduct_h+z])
rotate([90,0,0]) {
cylinder(r=fanduct_shell,h=fanduct_w,center=true,$fn=30);
for(z=[-1,1]) translate([0,0,z*fanduct_w/2])
sphere(r=fanduct_shell,$fn=30);
}
}
}
// *** output
module output(what,type=type) {
module guideline(xyxy) {
module pin(xy) {
translate([xy[0],xy[1],0])
cylinder(d=2*extrusion_width,h=2*fanduct_shell+inlet_h,$fn=6);