1 files changed, 9 insertions, 5 deletions

diff --git a/another.scad b/another.scad
index 8d9d22c..b1cbdeb 100644
--- a/another.scad
+++ b/another.scad
@@ -59,12 +59,13 @@ module the_extruder(
  mount_screw_d_tolerance=.4,
  idler_v_tolerance=.5,
  knob_bore_d_tolerance=.6,
  st_nut_h_tolerance=.2,
  st_nut_d_tolerance=.2,/* TODO: make it st_nut_w_tolerance */
  st_screw_d_tolerance=.5,
+ st_split_w_tolerance = .3,
 
  min_z_shell = 4*layer_height,                  // the very minimal shell thickness along z-axis.
  min_xy_shell = 2*extrusion_width,
 
  what="lever",  // lever|body|knob|springpad|*
  left=false,
@@ -234,14 +235,14 @@ module the_extruder(
      union() {
       hull() {
        translate([0,-longwing,ls_z])
        rotate([0,90,0])
        cylinder(d=lever_thickness,h=fsw,$fn=fnd*lever_thickness);
        hh=body_h-ls_z;
-       translate([0,0,ls_z-lever_thickness/2])
-       mirror([0,1,0]) cube(size=[fsw,longwing-hh+lever_thickness/sqrt(2),hh+lever_thickness/2]);
+       translate([0,0,ls_z])
+       mirror([0,1,0]) cube(size=[fsw,longwing+(st_thinshell+st_split_w_tolerance)/2+st_thickshell,body_h-ls_z]);
        hhh=ls_z;
        translate([0,0,0])
        mirror([0,1,0]) cube(size=[fsw,longwing-hhh+lever_thickness/sqrt(2),hhh+lever_thickness/2]);
       }
      }
      translate([0,-longwing,ls_z]) rotate([0,-90,0]) {
@@ -251,15 +252,18 @@ module the_extruder(
         hull() for(o=[0,spring_d]) translate([0,-o,0])
         rotate([0,0,30])
         cylinder(d=st_nut_d+st_nut_d_tolerance,h=st_nut_h+st_nut_h_tolerance,$fn=6);
         translate([0,0,-1]) cylinder(d=st_screw_d+st_screw_d_tolerance,h=fsw+2,$fn=fnd*(st_screw_d+st_screw_d_tolerance));
         bigd = spring_d+spring_d_clearance;
         hf = (bigd-st_screw_d-st_screw_d_tolerance)/2;
-        translate([0,0,st_thickshell+st_nut_h+st_nut_h_tolerance+st_thinshell-epsilon])
-        cylinder(d1=st_screw_d+st_screw_d_tolerance,d2=bigd,
-         h=hf+epsilon, $fn=fnd*bigd);
+        translate([0,0,st_thickshell+st_nut_h+st_nut_h_tolerance+st_thinshell-epsilon]) {
+         cylinder(d1=st_screw_d+st_screw_d_tolerance,d2=bigd,
+          h=hf+epsilon, $fn=fnd*bigd);
+         translate([0,-(st_thinshell+st_split_w_tolerance)/2,0])
+         cube(size=[body_h-ls_z+1,st_thinshell+st_split_w_tolerance,fsw+1]);
+        }
         translate([0,0,st_thickshell+st_nut_h+st_nut_h_tolerance+st_thinshell+hf-epsilon])
         cylinder(d=bigd,h=fsw+1,$fn=fnd*bigd);
        }
       }
      }
     } // translate