Better 3D Pen Holder for the SUNLU SL-300

I created this pen holder for the SUNLU SL-300 Pen Holder that comes with the 3D Pen.

The was too unstable to use properly so I created a 3D model that'll help with the stability.

Check out my Youtube video to see how I made it:
https://youtu.be/BezAa3p_5J0