thats one nice pen.
Question:- how do you hold the closed end on the lathe to turn it.
I measured a 120 mm blank, drilled down 65 mm .
I placed the blank on a shortened pen mandrel with the Omega bushing in place. the rear end of the blank was secured using a revolving tailstock.
I turned the pen down to required shape and polished , i then parted off the pen and removed revolving tailstock
I then secured the bushing and pen blank to the mandrel with tape and sanded off the end before finally shaping and finishing with abranet.
I also have a BIG Grabber MT1 Mandrel on order from PSI which will only reduce the need for the tape to finish the pen.
I will take photos next time , but i am sure Grumps has posted the same technique in the past