author | Michael Krelin <hacker@klever.net> | 2016-05-29 21:08:16 (UTC) |
---|---|---|
committer | Michael Krelin <hacker@klever.net> | 2016-05-29 21:08:16 (UTC) |
commit | 6369f8a5865e1ce85d5b7a0520da47adbe86eba1 (patch) (side-by-side diff) | |
tree | b093571f31a5d7dbb2b559b0e66f95a0a2b87639 | |
parent | 477b5dff0c93243b93f03e51bca541b465b6f1f5 (diff) | |
download | fanductory-6369f8a5865e1ce85d5b7a0520da47adbe86eba1.zip fanductory-6369f8a5865e1ce85d5b7a0520da47adbe86eba1.tar.gz fanductory-6369f8a5865e1ce85d5b7a0520da47adbe86eba1.tar.bz2 |
deeper marks going halfway down
-rw-r--r-- | fanduct.scad | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/fanduct.scad b/fanduct.scad index 235c079..e16c5ae 100644 --- a/fanduct.scad +++ b/fanduct.scad @@ -1,155 +1,157 @@ use <snapper.scad>; extrusion_width=.5; layer_height=.2; // print parameters epsilon=.005; // for finer cuts heater_w = 16; // heatblock width heater_l = 20; // heatblock length nozzle_offset=4.5; // nozzle offset from the edge of heatblock fanduct_elevation = 3; // fanduct elevation above nozzle tip fanduct_h = 6; // inner height of the duct fanduct_w = 6; // inner width of the duct fanduct_shell=1.2; // shell thickness fanduct_ir = sqrt(pow(heater_w/2,2)+pow(heater_l-nozzle_offset,2))+5; // inner radius jet_angle = 60; // angular width of the jet inlet_w = 12.5; // inlet width inlet_h = 17; // inlet height inlet_l = 7; // inlet length of protrusion (or depth of intrusion:)) inlet_away = 15; // how far away inlet is hotend_clearance = 12; snapper_d = 8; snapper_overlap=0.2; // snip snap smooth_f = 120; type="3jets"; // "3jets" ; // circular|3jets module fanduct(type=type) { // *** duct is all around! module duct(what) { if(what=="in") { rotate_extrude($fn=smooth_f) translate([fanduct_ir,0]) square([fanduct_w+2*fanduct_shell,fanduct_h+2*fanduct_shell]); }else if(what=="out") { rotate_extrude($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,$fn=36); } } } // *** bumps for easier position adjustments in line with hotend module marks(what) { if(what=="in") { - for(y=[-1,1]) translate([0,y*(fanduct_ir+fanduct_shell+fanduct_w/2),fanduct_shell*2+fanduct_h]) - rotate([90,0,0]) { - cylinder(r=fanduct_shell,h=fanduct_w,center=true,$fn=30); - for(z=[-1,1]) translate([0,0,z*fanduct_w/2]) - sphere(r=fanduct_shell,$fn=30); - } + for(y=[-1,1]) + hull() for(z=[0,-fanduct_shell-fanduct_h/2]) + translate([0,y*(fanduct_ir+fanduct_shell+fanduct_w/2),fanduct_shell*2+fanduct_h+z]) + rotate([90,0,0]) { + cylinder(r=fanduct_shell,h=fanduct_w,center=true,$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); } xyxyxy=concat(xyxy,[[0,0]]); for(i=[0:1:len(xyxyxy)-2]) hull() for(j=[i,i+1]) pin(xyxyxy[j]); } module circus(what) { if(what=="in") { difference() { rotate_extrude($fn=smooth_f) polygon([ [0,-fanduct_elevation], [fanduct_ir+fanduct_shell,fanduct_shell+fanduct_h/2], [fanduct_ir+fanduct_shell,0], [0,-fanduct_elevation-.1]]); translate([0,0,-1]) cylinder(r=hotend_clearance,h=fanduct_h+2*fanduct_shell+2,$fn=smooth_f); mirror([0,0,1]) translate([0,0,-epsilon]) cylinder(r=fanduct_ir+fanduct_shell+1,h=fanduct_elevation+.1+2); } }else if(what=="out") { difference() { rotate_extrude($fn=smooth_f) polygon([ [0,-fanduct_elevation], [fanduct_ir+fanduct_shell+1,fanduct_h/2], [fanduct_ir+fanduct_shell+1,fanduct_shell], [0,-fanduct_elevation-.1]]); circus("airguides"); } }else if(what=="airguides") { inr = fanduct_ir+fanduct_shell; our = inr+fanduct_w; union() { for(my=[0,1]) mirror([0,my,0]) { guideline([ [-our,inlet_w/6], [-inr*sin(60),inr*cos(60)] ]); a0=30; as=15; a1=180; for(a=[a0+as:as:a1]) { f = as/(a1-a+as); rotate([0,0,a]) guideline([[-inr-fanduct_w*f,0]]); } guideline([ [-our+fanduct_w*cos(30)*3/4,fanduct_w*sin(30)*3/4], [-inr*cos(10),inr*sin(10)] ]); } }/*union*/ }/*airguides*/ } module jets(what) { od = fanduct_h/2+fanduct_shell; difference() { for(a=[0:120:359]) rotate([0,0,a]) { if(what=="in") { hull() { translate([fanduct_ir+od/2,0,od/2]) rotate([90,0,0]) cylinder(d=od,h=2*(fanduct_ir+fanduct_shell+fanduct_w/2)*sin(jet_angle/2)-3,center=true,$fn=36); translate([0,0,-fanduct_elevation]) sphere(r=.5); } }else if(what=="out") { hull() { translate([fanduct_ir+od/2,0,od/2]) rotate([90,0,0]) cylinder(d=od-2*fanduct_shell,h=2*(fanduct_ir+fanduct_shell+fanduct_w/2)*sin(jet_angle/2)-3-2*fanduct_shell,center=true); translate([0,0,-fanduct_elevation]) sphere(r=.2); } } } if(what=="in") { translate([0,0,-fanduct_elevation-2+epsilon]) cylinder(r=fanduct_ir+fanduct_shell*2+fanduct_w+1,h=fanduct_elevation+2); translate([0,0,-hotend_clearance]) rotate([0,0,30]) cylinder(r1=hotend_clearance*2,r2=0,h=hotend_clearance*2,$fn=6); } } } if(type=="circular") circus(what); else if(type=="3jets") jets(what); } |