| -rw-r--r-- | fanduct.scad | 28 |
1 files changed, 14 insertions, 14 deletions
diff --git a/fanduct.scad b/fanduct.scad index 302ea07..a18ce56 100644 --- a/fanduct.scad +++ b/fanduct.scad @@ -1,66 +1,66 @@ use <snapper.scad>; extrusion_width=.5; layer_height=.2; // print parameters epsilon=.005; // for finer cuts +type="circular"; // 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; heater_clearance = max( hypothenuse(16/2 +silicone_shell, 20-4.5 +silicone_shell), // E3D v6 hypothenuse(11.5-4.5 +silicone_shell, 15.5 +silicone_shell) // E3D volcano ); fanduct_elevation = 3; // fanduct elevation above nozzle tip fanduct_blowtarget = -2; // what to blow at fanduct_h = 6; // inner height of the duct fanduct_w = 7; // inner width of the duct fanduct_shell=1.2; // shell thickness fanduct_ir = heater_clearance+5; // inner radius jet_angle = 60-2; // angular width of the jet -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; hotend_clearance = heater_clearance; -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 - snapper_d = 8; snapper_overlap=0.2; // snip snap smooth_f = 120; -type="circular"; // circular|3jets -ductshape="square"; // square|round -dual=false; // dual or single - to_midduct = fanduct_ir+fanduct_shell+fanduct_w/2; dual_spots = [ [+space_behind_nozzle, -(to_midduct+nozzles_apart/2)], [- to_midduct, -(to_midduct+nozzles_apart/2)], [- to_midduct, 0] ]; module fanduct(type=type,ductshape=ductshape,dual=dual) { // *** duct is all around! module duct(what) { module single() { 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) |