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authorMichael Krelin <hacker@klever.net>2018-08-02 19:29:40 (UTC)
committer Michael Krelin <hacker@klever.net>2018-08-02 19:29:40 (UTC)
commit7fe5273a70a70beeba8ff622a7af1e2cfdf1a28f (patch) (side-by-side diff)
tree290a2328fd74cadd18e09c90e7afbc6a32556364
parent8dd86c90ff31dca9cf4ce5260e199bf1d38a359a (diff)
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cutout on the back side
in the unfortunate event of filament grinding it may serve as an escape way for filament powder
Diffstat (more/less context) (show whitespace changes)
-rw-r--r--another.scad13
1 files changed, 13 insertions, 0 deletions
diff --git a/another.scad b/another.scad
index 4af7d29..38a9aae 100644
--- a/another.scad
+++ b/another.scad
@@ -277,6 +277,19 @@ module the_extruder(
cylinder(r=r,h=ls_h,center=true);
translate([-r-1,0,-ls_h/2-1]) cube(size=[2*r+2,r+1,ls_h+2]);
}
+
+ // back side cutout
+ a0 = asin((mount_screwhead_d+2*extrusion_width)/mount_d);
+ a1 = atan((longwing-lever_thickness/2)/(gearbox_d/2));
+ translate([0,0,ls_z]) hull() {
+ rotate([0,0,-180+a0])
+ rotate_extrude(angle=a1-a0)
+ translate([0,-ls_h/2])
+ square([sqrt(pow(gearbox_d/2,2)+pow(longwing-lever_thickness/2,2))+1,
+ ls_h]);
+ cylinder(d=bore_d/2/*TODO:recalculate angles based on this,
+ too lazy to do that now*/,
+ h=ls_h,center=true);
}
rotate([0,0,-45])