| | 03/11/2026 | 
I got the idea for this blog entry because I’m learning to turn and I've been watching a lot of lathe videos. What has struck me about the very simple operation of mounting a piece of wood between two centers is how complicated people can make it. When I first started turning, I would follow some of these more complicated instructions to the letter and I didn't get great results. Mostly my own fault, but now that I know more I can say these protocols were also unnecessarily hard and complicated ways of getting stuff done.
I'm not exactly sure where I first saw the method I will describe in this post. I instantly concluded, Oh, this is much easier. It might have been from the videos of Richard Raffan, who has put out some excellent turning videos which I highly recommend. And he's eminently practical.
The Gramercy tools treadle lathe comes with a 1" crown center to drive the work and a live cup center to support the spindle work at the other end. There are a lot of excellent reasons for using a crown and a cup center to support the work, including safety, but one real advantage is that it makes mounting the work in the lathe really, really simple.
All you need to do is find the center of each end of the stock and put a punch there. Other types of centers require an actual drilled hole, but when you use a crown center and cup center, you don't need more than a punch mark.
The question is, Where does the punch mark go? And the answer is, In the center of the stock. There's a whole host of gadgets for figuring this out. They sort of work, but if the stock isn't actually square, they don't really work. Moreover, they are not necessary anyway.
Here's what you do:
Take a pencil hold it at approximately halfway over the stock and mark the stock all around (above).
You will end up with a little square in the middle. Put a punch mark in the center of that square. Eyeballing that center is perfectly fine (but don't punch yourself in your eyeball).
I use an automatic punch, but you can use a nail and a hammer. I always punch twice cuz I just do.
Then we do the other side.
That done, it's time to mount it in the lathe. The crown center is a spring-loaded pin. All you do is put the punch mark up against the pin on one side, with a little pressure so it doesn't slip out. Then you advance tailstock so that the pin in the cup center presses into the punch mark on other side. They you tighten the tailstock until the cup digs into the stock.
That's it! You are done. As you turn, the crown center especially has a tendency to loosen up a little bit. And the cup center may work itself a little deeper, so you might want to tighten the tail stock periodically. It's pretty easy.
Incidentally, as I mentioned in the beginning of this blog post, I've been watching Richard Raffan videos. He has a method of putting stuff between centers without any layout at all, just eyeballing it as he's putting it on the centers. I tried this method and it works fine. The reason I don't just eyeball it is that I think the method I've described here is even easier and requires even less thinking. Although you do need a pencil and punch handy. | Join the conversation | |
| The opinions expressed in this blog are those of the blog's author and guests and in no way reflect the views of Tools for Working Wood. |
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