If you aren't sure what "sanded through" looks like (or you feel nostalgic and want to see it again), then make a pen, but:
- Turn the basic pen blank to a cylinder.
- Finish it with your favorite CA finish.
- Sand a part until you've sanded through.
- Feel it, smell it, take measurements, learn from it, whatever you need.
- Practice fixing the sanded-through part if you wish.
When you're done working on the sanded-through part:
- Turn off the finish.
- Turn the pen down to the proper size as you would any other pen.
- Finish it right, but don't sand through.
Note:
This method is a great way to learn how to do a consistent, high quality CA finish. Finish the cylinder, turn off the finish, repeat. When you get close, then do the final turning and finishing for your pen. Repeat on your next pen until you reach a high level of dependability and confidence. Great practice!