diff --git a/scad/spool_holder.scad b/scad/spool_holder.scad
index 6ef78d2..ce2b868 100644
--- a/scad/spool_holder.scad
+++ b/scad/spool_holder.scad
@@ -75,7 +75,6 @@ module pie_slice(r, start_angle, end_angle) {
             [R * cos(a2), R * sin(a2)],
             [R * cos(a3), R * sin(a3)],
             [R * cos(a4), R * sin(a4)],
-            [0,0]
        ]);
     }
 }
@@ -438,4 +437,7 @@ if(1)
     translate([0, 0, - spool_z])
         spool_assembly();
 else
-    spool_holder_brackets_stl();
+    if(1)
+        spool_holder_brackets_stl();
+    else
+        dust_filter_stl();
diff --git a/scad/vitamins/nuts.scad b/scad/vitamins/nuts.scad
index ca5a13b..b46bcb6 100644
--- a/scad/vitamins/nuts.scad
+++ b/scad/vitamins/nuts.scad
@@ -89,7 +89,6 @@ module wingnut(type) {
                             [bottom_rad * cos(top_angle) - eta, 0],
                             [wing_span / 2  - wing_width / 2, wing_height - wing_width / 2],
                             [top_rad * cos(top_angle) - eta, thickness],
-                            [bottom_rad * cos(top_angle) - eta, 0],
                         ]);
                     }
         }