filamentspool: Storarm: prep for mounting holes

diff --git a/filamentspool.scad b/filamentspool.scad
index 8af96483fd688feec764b8cf682b6d9a70456e72..5b68cb21e3bfa5abd058cbf3bc0fe98a33307e96 100644 (file)
--- a/filamentspool.scad
+++ b/filamentspool.scad
@@ -517,12 +517,16 @@ module StorageArm(){ ////toplevel
     StorageArmDiagPart(storarm_mainlen, storarm_totlen,
                       shear/2, -storarm_hookheight/2);
 
-  hull(){
-    translate([-storarm_base_d, -storarm_base_off_y, storarm_base_w])
-      rotate([0,90,0])
-      linear_extrude(height=storarm_base_mind)
-      StorageArmBaseTemplate();
-    StorageArmDiagPart(-1, 0, shear, 0);
+  difference(){
+    union(){
+      hull(){
+       translate([-storarm_base_d, -storarm_base_off_y, storarm_base_w])
+         rotate([0,90,0])
+         linear_extrude(height=storarm_base_mind)
+         StorageArmBaseTemplate();
+       StorageArmDiagPart(-1, 0, shear, 0);
+      }
+    }
   }
 }