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-rw-r--r--another.scad23
1 files changed, 16 insertions, 7 deletions
diff --git a/another.scad b/another.scad
index f54c5cd..b80d0d0 100644
--- a/another.scad
+++ b/another.scad
@@ -324,5 +324,15 @@ module the_extruder(
// back side cutout
- a0 = asin((mount_screwhead_d+2*extrusion_width)/mount_d);
+ // XXX: this is somewhat ugly and potentially bugged,
+ // but I want to sleep.
+ a0_ = atan(
+ (mount_d/sqrt(2)/2+mount_screw_d+pf_h(pf)+gearbox_d/2)
+ /
+ (
+ pulley_d/2-
+ (pf_d(pf)+2*pf_shell)/2/cos(30)
+ )
+ );
+ a0 = -135 + ( (a0_>0) ? a0_ : 180+a0_ );
a1 = atan((longwing-lever_thickness/2)/(gearbox_d/2));
- translate([0,0,ls_z]) hull() {
+ translate([0,0,ls_z]) difference() {
rotate([0,0,-180+a0])
@@ -331,7 +341,6 @@ module the_extruder(
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);
- }
+ ls_h]);
+ translate([-mount_d/2,0,0])
+ cylinder(d=gearbox_d-mount_d,h=ls_h+2,center=true,$fn=fnd*(gearbox_d-mount_d));
+ }//difference translate