| author | Michael Krelin <hacker@klever.net> | 2016-05-30 23:05:36 (UTC) |
|---|---|---|
| committer | Michael Krelin <hacker@klever.net> | 2016-05-30 23:05:36 (UTC) |
| commit | c11d5b7e8f4b8f0e7a20d81dd813a21e19b705c3 (patch) (side-by-side diff) | |
| tree | c361a9b9a84be5e1983404afdc98f3e77298664e | |
| parent | d2f2c94ddbbf6c00b6ea89257f8f3e242f9216bd (diff) | |
| download | fanductory-c11d5b7e8f4b8f0e7a20d81dd813a21e19b705c3.zip fanductory-c11d5b7e8f4b8f0e7a20d81dd813a21e19b705c3.tar.gz fanductory-c11d5b7e8f4b8f0e7a20d81dd813a21e19b705c3.tar.bz2 | |
make the blow target adjustable
blow a bit below layer printed to target the neighborhood instead of
the very nozzle
| -rw-r--r-- | fanduct.scad | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/fanduct.scad b/fanduct.scad index 7fc1ff4..f4bb705 100644 --- a/fanduct.scad +++ b/fanduct.scad @@ -5,12 +5,13 @@ 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_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 = sqrt(pow(heater_w/2,2)+pow(heater_l-nozzle_offset,2))+5; // inner radius jet_angle = 60; // angular width of the jet @@ -78,29 +79,29 @@ module fanduct(type=type) { module circus(what) { if(what=="in") { difference() { rotate_extrude($fn=smooth_f) polygon([ - [0,-fanduct_elevation], + [0,-fanduct_elevation+fanduct_blowtarget+epsilon], [fanduct_ir+fanduct_shell,fanduct_shell+fanduct_h/2], [fanduct_ir+fanduct_shell+fanduct_w/2,0], - [0,-fanduct_elevation-.1]]); + [0,-fanduct_elevation+fanduct_blowtarget-epsilon]]); translate([0,0,-1]) cylinder(r=hotend_clearance,h=fanduct_h+2*fanduct_shell+2,$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") { rotate_extrude($fn=smooth_f) polygon([ - [0,-fanduct_elevation], + [0,-fanduct_elevation+fanduct_blowtarget+epsilon], [fanduct_ir+fanduct_shell+1,fanduct_h/2], [fanduct_ir+fanduct_w/2+fanduct_shell+1,fanduct_shell], - [0,-fanduct_elevation-.1]]); + [0,-fanduct_elevation+fanduct_blowtarget-epsilon]]); }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], |