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 my thing in Tinkercad: https://tinkercad.com/things/4Rz2tWbuwrN
Created with Thinkercad and printed with the Robox printer with black PLA and the "Normal" setting.
No need for support.