deeper marks going halfway down

1 files changed, 3 insertions, 1 deletions

diff --git a/fanduct.scad b/fanduct.scad
index 235c079..e16c5ae 100644
--- a/fanduct.scad
+++ b/fanduct.scad
@@ -48,13 +48,15 @@ module fanduct(type=type) {
   }
  }
 
          //     ***bumps for easier position adjustments in line with hotend
  module marks(what) {
   if(what=="in") {
-   for(y=[-1,1]) translate([0,y*(fanduct_ir+fanduct_shell+fanduct_w/2),fanduct_shell*2+fanduct_h])
+   for(y=[-1,1])
+    hull() for(z=[0,-fanduct_shell-fanduct_h/2])
+     translate([0,y*(fanduct_ir+fanduct_shell+fanduct_w/2),fanduct_shell*2+fanduct_h+z])
    rotate([90,0,0]) {
     cylinder(r=fanduct_shell,h=fanduct_w,center=true,$fn=30);
     for(z=[-1,1]) translate([0,0,z*fanduct_w/2])
      sphere(r=fanduct_shell,$fn=30);
    }
   }