1 files changed, 5 insertions, 4 deletions

diff --git a/another.scad b/another.scad
index 0d67286..8334b11 100644
--- a/another.scad
+++ b/another.scad
@@ -107,6 +107,8 @@ module the_extruder(
  body_h = max(protrusion_h+bore_l,mount_screw_l-mount_depth+mount_screwhead_h+min_z_shell,ls_z*2);
  echo("mount depth",mount_depth);
 
+ pf_offset = mount_d/sqrt(2)/2+mount_screw_d/2+min_xy_shell;
+
  module teardrop(r,d,h,center=false,angle=45) {
   dd = d ? d : (2*r);
   $fn = dd*fnd;
@@ -160,7 +162,7 @@ module the_extruder(
       }//rotate translate
       translate([pulley_d/2+filament_offset,0,0]) rotate([-90,0,0]) {
        cylinder(d=filament_d,h=gearbox_d,center=false,$fn=15);
-       translate([0,0,mount_d/sqrt(2)/2+mount_screw_d])
+       translate([0,0,pf_offset])
        pushfit(pf);
       }//rotate translate
      }//rotate
@@ -254,7 +256,7 @@ module the_extruder(
     translate([0,0,filament_elevation])
     rotate([0,0,45]) translate([pulley_d/2+filament_offset,0,0])
     rotate([-90,0,0])
-    translate([0,0,mount_d/sqrt(2)/2+mount_screw_d-gearbox_d/2/*TODO:*/]) {
+    translate([0,0,pf_offset-gearbox_d/2/*TODO:*/]) {
      pfbl = pf_h(pf)+gearbox_d/2; //TODO:
      pfbd = pf_d(pf)+2*pf_shell;
      hull() {
@@ -282,7 +284,6 @@ module the_extruder(
     cylinder(d=mount_screwhead_d,h=body_h+1,$fn=fnd*mount_screwhead_d);
    }//for
    // pushfit
-   pf_offset = mount_d/sqrt(2)/2+mount_screw_d;
    translate([0,0,filament_elevation])
    rotate([0,0,45]) translate([pulley_d/2+filament_offset,0,0])
    rotate([-90,0,0])
@@ -321,7 +322,7 @@ module the_extruder(
    // 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)
+    (pf_offset+pf_h(pf)+gearbox_d/2)
     /
     (
      pulley_d/2+filament_offset-