Rotary Pen laser etch holder

This is to hold a standard lathe finished pen for laser etching using awesome T2Lasers rotary tool profiles and a standard eleksmaker A3 laser etcher.
Parts needed to make this one as pictured, 2 x 250mm 3/8 steel rod, 6mm x 270mm threaded rod, motor and connectors to attach to Mana SE and I used a 22mm x 7mm bearing.

You do not need anything like 250mm, I just used that as I had 500mm length sitting around and figured I may want to repurpose it later to something larger.
Uses a cheap 28BY