Depth adjustment (for the Silhouette Cameo Pen Holder)

I downloaded and printed a pen holder for my Silhouette Cameo. The pen holder works great, but it is a bit exhausting to find the correct depth on the pen every time use it. Soooo I made this simple depth adjuster. Just put the pen holder in the hole... insert the pen you are using and tighten the screw. Link to the penholder I made this for: http://www.thingiverse.com/thing:346734 Link to my thing in Tinkercad: https://tinkercad.com/things/4Rz2tWbuwrN