Sewing machine thread guid - Pfaff

If I use a fresh big thread spool it won't fit in horizontally, so I need to mount it vertically e.g. with this http://www.thingiverse.com/thing:1922373 . But the thread may fall off at the downside and get stuck. So i constructed a guide for the thread. This thing will fit a Pfaff tiptronic 1029 and probably some similar models.