My version …

[JohnU]

A short while ago I seen this post about some handmade ebonite. The green, orange, yellow and black combination really caught my eye.
https://www.penturners.org/threads/hand-made-ebonite-hard-to-get.185302/

Knowing nothing about making ebonite, I decided to spend a little time creating my take on a resin version of the material. After a few attempts and fine tunings here's what I came up with. My wife quickly claimed it. The pen set is a diamond knurl gold ti and chrome from Exoticblanks.

 

[jttheclockman]

Looks great. Can you give some insight as to how this is made? It looks it was laser cut.

 

[JohnU]

Thanks, Here's a picture of the raw blank. The shell was 3D printed and then filled with each resin color. It opens the door to different color variations, I've just lack the time play more with it. The only requirement in using it is drilling dead center, to keep the pattern straight, which I find easiest to do on the lathe with a 2 jaw chuck set up. I've been getting to know my new laser also, and hope to make some new blanks with it but I have more to learn before that gets done.

 

[keithbyrd]

Pretty amazing John! Great job!

 

[mark james]

That's funky! I love innovation.

 

[Jim15]

Awesome work.

 

[carlmorrell]

Fun stuff. Have you considered designing into the 3D print the bore hole? I suppose the challenge would be keeping the resin out of the hole.

 

[DaveH]

Finding a way to drill the center all the way through a blank can be very difficult. In the attached picture, I cut the blank into upper and lower, found the center of each end, then turned it between centers. This provided drilling symmetry while in the 2-jaw chuck and a point on the other end to start a brad point bit.
The blank is a layer of wood between cardboard and cast in clear resin. The whole project has more steps than I can cover here, but the point is getting the blank inline with the path of the drill. Perhaps some banks that need it can be cast with internal symmetry?

 

[moke]

very cool John, as usual you lead the way!!!