| -rw-r--r-- | fanduct.scad | 66 |
1 files changed, 61 insertions, 5 deletions
diff --git a/fanduct.scad b/fanduct.scad index 52aee0e..a17b261 100644 --- a/fanduct.scad +++ b/fanduct.scad @@ -1,22 +1,22 @@ use <snapper.scad>; extrusion_width=.5; layer_height=.2; // print parameters epsilon=.005; // for finer cuts -type="circular"; // circular|3jets +type="simple"; // circular|3jets ductshape="square"; // square|round dual=true; // dual or single nozzles_apart = 18; // distance between nozzles for dual hotend space_behind_nozzle = 10; // space behind the nozzle where we're allowed to go // without the fear of hitting carriage inlet_w = 12.5; // inlet width inlet_h = 17; // inlet height inlet_short_l = 7; // inlet length of protrusion (or depth of intrusion:)) inlet_away = 15; // how far away inlet is inlet_long_l = inlet_short_l+inlet_h; function hypothenuse(a,b) = sqrt(pow(a,2)+pow(b,2)); silicone_shell = 2; @@ -91,35 +91,67 @@ module fanduct(type=type,ductshape=ductshape,dual=dual) { hulls() cylinder(d=fanduct_w+2*fanduct_shell,h=fanduct_h+2*fanduct_shell); }else if(what=="out") { sh = fanduct_w; sv = fanduct_h; smax = max(sh,sv); translate([0,0,fanduct_shell]) hulls() { cylinder(d=fanduct_w,h=fanduct_h/2); translate([0,0,fanduct_h/2]) scale([sh/smax,sh/smax,sv/smax]) intersection() { sphere(d=smax,$fn=36); translate([0,0,-1]) cylinder(d=smax+2,h=smax+2,$fn=36); } } } } + module dual_simple() { + for(my=[0,1]) mirror([0,my,0]) + if(what=="in") { + sh = fanduct_w+2*fanduct_shell; sv = fanduct_h+2*fanduct_shell; + translate([0,nozzles_apart/2,0]) + intersection() { + rotate_extrude($fn=smooth_f) + translate([fanduct_ir,0]) square([sh,sv]); + translate([-fanduct_ir-sh-1,0,-1]) + cube(size=[fanduct_ir+sh+2,fanduct_ir+sh+2,sv+2]); + } + translate([-fanduct_ir-sh,-epsilon,0]) + cube(size=[sh,nozzles_apart/2+2*epsilon,sv]); + translate([0,sh/2+fanduct_ir+nozzles_apart/2,0]) cylinder(d=sh,h=sv,$fn=36); + }else if(what=="out") { + sh = fanduct_w; sv = fanduct_h; + translate([0,nozzles_apart/2,fanduct_shell]) + intersection() { + rotate_extrude($fn=smooth_f) + translate([fanduct_ir+fanduct_shell,0]) square([sh,sv]); + translate([-fanduct_ir-2*fanduct_shell-sh-1,-1,0]) + cube(size=[fanduct_ir+2*fanduct_shell+sh+2,fanduct_ir+2*fanduct_shell+sh+2,sv]); + } + translate([-fanduct_ir-fanduct_shell-sh,-epsilon,fanduct_shell]) + cube(size=[sh,nozzles_apart/2+2*epsilon,sv]); + translate([0,sh/2+fanduct_shell+fanduct_ir+nozzles_apart/2,fanduct_shell]) + cylinder(d=sh,h=sv,$fn=36); + } + } - if(dual) dual(); - else single(); + if(dual) { + if(type=="simple") + dual_simple(); + else dual(); + }else single(); } // *** bumps for easier position adjustments in line with hotend module marks(what) { if(what=="in") { for(y=[-1,1]) translate([0,dual?y*nozzles_apart/2:0,0]) 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); } } } @@ -242,34 +274,58 @@ module fanduct(type=type,ductshape=ductshape,dual=dual) { }else if(what=="airguides") { far = fanduct_ir+fanduct_shell+fanduct_w; near = fanduct_ir; union() { for(my=[0,1]) mirror([0,my,0]) { guideline([ [-far ,0], [0, nozzles_apart/8] ]); guideline([ [-far ,inlet_w/2/4 ], [-near ,to_midduct/2] ]); guideline([ [-near-fanduct_w/3, to_midduct/2 ], [-near ,nozzles_apart/2+near ] ]); guideline([ [0 ,nozzles_apart/2+near+fanduct_w*space_behind_nozzle/to_midduct] ]); } } } } - if(dual) dual(what); - else if(type=="circular") circus(what); + module dual_simple(what=what) { + for(my=[0:1]) mirror([0,my,0]) if(what=="in") { + difference() { + hull() { + translate([0,nozzles_apart/2+fanduct_ir+fanduct_shell+fanduct_w/2,0]) + cylinder(d=fanduct_w+2*fanduct_shell,h=fanduct_h*2/3+2*fanduct_shell); + translate([0,nozzles_apart/2,-fanduct_elevation+fanduct_blowtarget]) + rotate([0,90,0]) cylinder(r=.5,h=fanduct_w*2,center=true); + } + rr = 2*(fanduct_ir+fanduct_shell*2+fanduct_w+2); + translate([-rr/2,0,0]) mirror([0,0,1]) cube(size=[rr,rr,rr]); + } + }else if(what=="out") { + hull() { + translate([0,nozzles_apart/2+fanduct_ir+fanduct_shell+fanduct_w/2,fanduct_shell]) + cylinder(d=fanduct_w,h=fanduct_h*2/3); + translate([0,nozzles_apart/2,-fanduct_elevation+fanduct_blowtarget]) + rotate([0,90,0]) cylinder(d=.5,h=fanduct_w*2,center=true); + } + } + } + + if(dual) { + if(type=="simple") dual_simple(what); + else dual(what); + }else if(type=="circular") circus(what); else if(type=="3jets") jets(what); } // *** air intake module intake(what) { module placeit() { translate([-fanduct_ir-2*fanduct_shell-fanduct_w-inlet_away,0,fanduct_shell]) rotate([0,-90,0]) children(); } if(what=="in") { placeit() translate([0,-inlet_w/2,0]) { difference() { cube(size=[inlet_h,inlet_w,inlet_long_l+fanduct_shell]); translate([inlet_h+fanduct_shell,0,inlet_long_l+fanduct_shell]) rotate([-90,0,0]) translate([0,0,-1]) |