-rw-r--r-- | fanduct.scad | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fanduct.scad b/fanduct.scad index b8994d4..7fc1ff4 100644 --- a/fanduct.scad +++ b/fanduct.scad | |||
@@ -1,60 +1,60 @@ | |||
1 | use <snapper.scad>; | 1 | use <snapper.scad>; |
2 | extrusion_width=.5; layer_height=.2; // print parameters | 2 | extrusion_width=.5; layer_height=.2; // print parameters |
3 | 3 | ||
4 | epsilon=.005; // for finer cuts | 4 | epsilon=.005; // for finer cuts |
5 | 5 | ||
6 | heater_w = 16; // heatblock width | 6 | heater_w = 16; // heatblock width |
7 | heater_l = 20; // heatblock length | 7 | heater_l = 20; // heatblock length |
8 | nozzle_offset=4.5;// nozzle offset from the edge of heatblock | 8 | nozzle_offset=4.5;// nozzle offset from the edge of heatblock |
9 | 9 | ||
10 | fanduct_elevation = 3; // fanduct elevation above nozzle tip | 10 | fanduct_elevation = 3; // fanduct elevation above nozzle tip |
11 | fanduct_h = 6; // inner height of the duct | 11 | fanduct_h = 6; // inner height of the duct |
12 | fanduct_w = 6; // inner width of the duct | 12 | fanduct_w = 7; // inner width of the duct |
13 | fanduct_shell=1.2; // shell thickness | 13 | fanduct_shell=1.2; // shell thickness |
14 | fanduct_ir = sqrt(pow(heater_w/2,2)+pow(heater_l-nozzle_offset,2))+5;// inner radius | 14 | fanduct_ir = sqrt(pow(heater_w/2,2)+pow(heater_l-nozzle_offset,2))+5;// inner radius |
15 | 15 | ||
16 | jet_angle = 60; // angular width of the jet | 16 | jet_angle = 60; // angular width of the jet |
17 | 17 | ||
18 | inlet_w = 12.5; // inlet width | 18 | inlet_w = 12.5; // inlet width |
19 | inlet_h = 17; // inlet height | 19 | inlet_h = 17; // inlet height |
20 | inlet_l = 7; // inlet length of protrusion (or depth of intrusion:)) | 20 | inlet_l = 7; // inlet length of protrusion (or depth of intrusion:)) |
21 | inlet_away = 15;// how far away inlet is | 21 | inlet_away = 15;// how far away inlet is |
22 | 22 | ||
23 | hotend_clearance = 12; | 23 | hotend_clearance = 12; |
24 | 24 | ||
25 | snapper_d = 8; snapper_overlap=0.2;// snip snap | 25 | snapper_d = 8; snapper_overlap=0.2;// snip snap |
26 | 26 | ||
27 | smooth_f = 120; | 27 | smooth_f = 120; |
28 | 28 | ||
29 | type="3jets"; // "3jets" ; // circular|3jets | 29 | type="3jets"; // "3jets" ; // circular|3jets |
30 | 30 | ||
31 | 31 | ||
32 | module fanduct(type=type) { | 32 | module fanduct(type=type) { |
33 | 33 | ||
34 | // ***duct is all around! | 34 | // ***duct is all around! |
35 | module duct(what) { | 35 | module duct(what) { |
36 | if(what=="in") { | 36 | if(what=="in") { |
37 | sh = fanduct_w+2*fanduct_shell; sv = fanduct_h+2*fanduct_shell; | 37 | sh = fanduct_w+2*fanduct_shell; sv = fanduct_h+2*fanduct_shell; |
38 | smax = max(sh,sv); | 38 | smax = max(sh,sv); |
39 | rotate_extrude($fn=smooth_f) | 39 | rotate_extrude($fn=smooth_f) |
40 | translate([sh/2+fanduct_ir,sv/2]) | 40 | translate([sh/2+fanduct_ir,sv/2]) |
41 | scale([sh/smax,sv/smax]) | 41 | scale([sh/smax,sv/smax]) |
42 | circle(d=smax,$fn=4*smax); | 42 | circle(d=smax,$fn=4*smax); |
43 | }else if(what=="out") { | 43 | }else if(what=="out") { |
44 | sh = fanduct_w; sv = fanduct_h; | 44 | sh = fanduct_w; sv = fanduct_h; |
45 | smax = max(sh,sv); | 45 | smax = max(sh,sv); |
46 | rotate_extrude($fn=smooth_f) | 46 | rotate_extrude($fn=smooth_f) |
47 | translate([sh/2+fanduct_shell+fanduct_ir,sv/2+fanduct_shell]) | 47 | translate([sh/2+fanduct_shell+fanduct_ir,sv/2+fanduct_shell]) |
48 | scale([sh/smax,sv/smax]) | 48 | scale([sh/smax,sv/smax]) |
49 | circle(d=smax,$fn=4*smax); | 49 | circle(d=smax,$fn=4*smax); |
50 | } | 50 | } |
51 | } | 51 | } |
52 | 52 | ||
53 | // ***bumps for easier position adjustments in line with hotend | 53 | // ***bumps for easier position adjustments in line with hotend |
54 | module marks(what) { | 54 | module marks(what) { |
55 | if(what=="in") { | 55 | if(what=="in") { |
56 | for(y=[-1,1]) | 56 | for(y=[-1,1]) |
57 | hull() for(z=[0,-fanduct_shell-fanduct_h/2]) | 57 | hull() for(z=[0,-fanduct_shell-fanduct_h/2]) |
58 | translate([0,y*(fanduct_ir+fanduct_shell+fanduct_w/2),fanduct_shell*2+fanduct_h+z]) | 58 | translate([0,y*(fanduct_ir+fanduct_shell+fanduct_w/2),fanduct_shell*2+fanduct_h+z]) |
59 | rotate([90,0,0]) { | 59 | rotate([90,0,0]) { |
60 | cylinder(r=fanduct_shell,h=fanduct_w,center=true,$fn=30); | 60 | cylinder(r=fanduct_shell,h=fanduct_w,center=true,$fn=30); |