author | Michael Krelin <hacker@klever.net> | 2016-06-11 15:13:44 (UTC) |
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committer | Michael Krelin <hacker@klever.net> | 2016-06-11 15:13:44 (UTC) |
commit | 4f322c6a7e2c5566ab90f17f010b1c5014ac4cd4 (patch) (side-by-side diff) | |
tree | 759df1cb9e6b2154f12e8c21f3c559f280e8153e | |
parent | f121f7a8ededf6a5d9371c1f5ab5135e8d58c8db (diff) | |
download | fanductory-4f322c6a7e2c5566ab90f17f010b1c5014ac4cd4.zip fanductory-4f322c6a7e2c5566ab90f17f010b1c5014ac4cd4.tar.gz fanductory-4f322c6a7e2c5566ab90f17f010b1c5014ac4cd4.tar.bz2 |
deeper and deeper and deeper inside
-rw-r--r-- | fanduct.scad | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/fanduct.scad b/fanduct.scad index 75a3bb1..7a9e205 100644 --- a/fanduct.scad +++ b/fanduct.scad @@ -1,51 +1,52 @@ use <snapper.scad>; extrusion_width=.5; layer_height=.2; // print parameters epsilon=.005; // for finer cuts 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_l = 7; // inlet length of protrusion (or depth of intrusion:)) +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; snapper_d = 8; snapper_overlap=0.2; // snip snap smooth_f = 120; type="3jets"; // "3jets" ; // circular|3jets ductshape="square"; // square|round module fanduct(type=type,ductshape=ductshape) { // *** 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($fn=smooth_f) if(ductshape=="round") translate([sh/2+fanduct_ir,sv/2]) scale([sh/smax,sv/smax]) circle(d=smax,$fn=4*smax); else if(ductshape=="square") translate([fanduct_ir,0]) @@ -167,108 +168,114 @@ module fanduct(type=type,ductshape=ductshape) { } 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,$fn=6); } } } if(type=="circular") circus(what); else if(type=="3jets") jets(what); } // *** air intake module intake(what) { module placeit() { translate([-fanduct_ir-2*fanduct_shell-fanduct_w-inlet_away,0,fanduct_shell]) rotate([0,-90,0]) children(); } if(what=="in") { placeit() translate([0,-inlet_w/2,0]) { - cube(size=[inlet_h,inlet_w,inlet_l+fanduct_shell]); + difference() { + cube(size=[inlet_h,inlet_w,inlet_long_l+fanduct_shell]); + translate([inlet_h+fanduct_shell,0,inlet_long_l+fanduct_shell]) + rotate([-90,0,0]) + translate([0,0,-1]) + cylinder(r=inlet_h,h=inlet_w+2*fanduct_shell+2,$fn=inlet_h*4); + } // supports for(i=[-1,0,1]) translate([-fanduct_shell, (i+1)*(inlet_w-extrusion_width)/2, -inlet_away-fanduct_w/2]) cube(size=[fanduct_shell, extrusion_width, - inlet_l+fanduct_shell+inlet_away+fanduct_w/2]); + inlet_long_l+fanduct_shell+inlet_away+fanduct_w/2]); } hull() { placeit() translate([-fanduct_shell,-inlet_w/2-fanduct_shell,0]) cube(size=[inlet_h+2*fanduct_shell,inlet_w+2*fanduct_shell,fanduct_shell]); translate([-fanduct_ir-fanduct_shell-fanduct_w/2,0,0]) translate([0,-inlet_w/2-fanduct_shell/2,0]) cube(size=[1,inlet_w+fanduct_shell,fanduct_shell*2+fanduct_h]); } }else if(what=="out") { placeit() translate([fanduct_shell,-inlet_w/2+fanduct_shell,0]) - cube(size=[inlet_h-2*fanduct_shell,inlet_w-2*fanduct_shell,inlet_l+fanduct_shell+1]); + cube(size=[inlet_h-2*fanduct_shell,inlet_w-2*fanduct_shell,inlet_long_l+fanduct_shell+1]); hull() { placeit() translate([fanduct_shell,-inlet_w/2+fanduct_shell,0]) cube(size=[inlet_h-2*fanduct_shell,inlet_w-2*fanduct_shell,fanduct_shell]); translate([-fanduct_ir-fanduct_shell-fanduct_w/2,0,fanduct_shell]) translate([0,-inlet_w/2+fanduct_shell,0]) cube(size=[1,inlet_w-2*fanduct_shell,fanduct_h]); } } } // *** DUCT TAILS!!! WOO-OO! (every day they're out there making duct tails…) module tails(what) { if(what=="in") { for(mx=[0,1]) mirror([mx,0,0]) translate([fanduct_ir+fanduct_shell+fanduct_w/2,0,fanduct_shell+fanduct_h/2]) rotate([90,0,90]) translate([0,0,-snapper_d/2]) snapper(d=snapper_d,o=snapper_overlap,side=0,l=fanduct_h*3/2+fanduct_shell); } } module parts(what) { union() { duct(what); marks(what); output(what); intake(what); tails(what); } } difference() { parts("in"); parts("out"); } intersection() { union() { output("airguides"); sphere(d=epsilon); } union() { duct("in"); output("in"); intake("in"); } } } -view="vcut"; // hcut|vcut|* +view="*"; // hcut|vcut|* hinfinity=4*(fanduct_ir+fanduct_shell*2+fanduct_w+inlet_away); vinfinity=2*(fanduct_shell*2+fanduct_h+inlet_h); if(view=="hcut") { difference() { fanduct(); translate([-hinfinity/2,-hinfinity/2,fanduct_shell+fanduct_h/2]) cube(size=[hinfinity,hinfinity,vinfinity]); } }else if(view=="vcut") { difference() { fanduct(); translate([-hinfinity/2,0,-vinfinity/2]) cube(size=[hinfinity,hinfinity,vinfinity]); } }else fanduct(); /* vim:set sw=1 ai: */ |