| author | Michael Krelin <hacker@klever.net> | 2016-05-29 21:12:15 (UTC) |
|---|---|---|
| committer | Michael Krelin <hacker@klever.net> | 2016-05-29 21:12:15 (UTC) |
| commit | 1bc06881cec07ceaafc0b98310b2424feda5f354 (patch) (side-by-side diff) | |
| tree | a976223bd80e8370c3e4773affe85289ba7eb300 | |
| parent | 255f4886db8797a9b1c8079f6a166e92e4eb1f4c (diff) | |
| download | fanductory-1bc06881cec07ceaafc0b98310b2424feda5f354.zip fanductory-1bc06881cec07ceaafc0b98310b2424feda5f354.tar.gz fanductory-1bc06881cec07ceaafc0b98310b2424feda5f354.tar.bz2 | |
toroidal duct
| -rw-r--r-- | fanduct.scad | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/fanduct.scad b/fanduct.scad index a843023..41048bf 100644 --- a/fanduct.scad +++ b/fanduct.scad @@ -34,17 +34,19 @@ module fanduct(type=type) { // *** 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($fn=smooth_f) - translate([fanduct_ir,0]) - square([fanduct_w+2*fanduct_shell,fanduct_h+2*fanduct_shell]); + translate([sh/2+fanduct_ir,sv/2]) + scale([sh/smax,sv/smax]) + circle(d=smax,$fn=4*smax); }else if(what=="out") { + sh = fanduct_w; sv = fanduct_h; + smax = max(sh,sv); rotate_extrude($fn=smooth_f) - translate([fanduct_ir+fanduct_shell,fanduct_shell]) - union() { - square([fanduct_w,fanduct_h/2]); - translate([fanduct_w/2,fanduct_h-fanduct_w/2]) - rotate([0,0,90]) circle(d=fanduct_w,$fn=36); - } + translate([sh/2+fanduct_shell+fanduct_ir,sv/2+fanduct_shell]) + scale([sh/smax,sv/smax]) + circle(d=smax,$fn=4*smax); } } |