Off Center Chamber

[Mark Beattie]

Good day,

This might be obvious to you all and I hope it is. I've drilled my mortise/draught hole and chamber last night. My alignment is about 1mm off, which I am okay with at this point but after turning the top of the chamber I noticed that the tobacco chamber is off center with the lip of the bowl ( picture a perfect circle slightly offset inside another perfect circle. Lathe adjustment? Block coming loose without me noticing? I can likely correct this in the shaping stage but I'd rather correct it for the next project. Can anyone shed some light on this?

Mark

[Sasquatch]

Block probably shifted a little as you rounded it up.

[RadDavis]

Sometimes the chamber bit "walks" just a tiny bit when you drill the chamber. This will give you an off center look when you turn the outside.

It can be corrected on the lathe as long as you don't remove the stummel. Bring a tool rest up to the bowl top and turn enough off the inside of the chamber to even everything out.

Rad

[Charl]

What's wrong, Rad? You in love or something?
This helps!

[RadDavis]

I'm not always a smart ass.

Rad

[wdteipen]

Sometimes the chamber bit "walks" just a tiny bit when you drill the chamber. This will give you an off center look when you turn the outside.

It can be corrected on the lathe as long as you don't remove the stummel. Bring a tool rest up to the bowl top and turn enough off the inside of the chamber to even everything out.

Rad

This is what I do. It happens when drilling on a wood lathe if the bit walks or you drill even slightly off center. I use a round finish scraper inside the chamber to true things up.