Finally got around to turning some Christmas tree ornaments and that
required hollowing through a half inch hole. Drilled the 1/2" hole
almost
through the shape I'd turned then used a dental tool as a scraper
to get back up under the top. Had a round bone bur and a Foredom.
So with the piece turning and the Foredom spinning the bur in the
opposite direction the hollowing was easy - great for stuff to about
2 1/2" reach. That's perfect for ornaments. There are other ball
type burs available if you don't have access to a bone bur.

So if you've got some sort of flex shaft and have avoided doing
small hollowing - try this route.

charile b

I take it a 'Foredom' is similar to a Dremel? How long is the shank on the
ball burr?

Tom

"charlieb" wrote in message
...
Finally got around to turning some Christmas tree ornaments and that
required hollowing through a half inch hole. Drilled the 1/2" hole
almost
through the shape I'd turned then used a dental tool as a scraper
to get back up under the top. Had a round bone bur and a Foredom.
So with the piece turning and the Foredom spinning the bur in the
opposite direction the hollowing was easy - great for stuff to about
2 1/2" reach. That's perfect for ornaments. There are other ball
type burs available if you don't have access to a bone bur.

So if you've got some sort of flex shaft and have avoided doing
small hollowing - try this route.

charile b

Tom Storey wrote:

I take it a 'Foredom' is similar to a Dremel?

flex shaft with various hand pieces available
in this case one with a jacobs chuck

How long is the shank on the
ball burr?

about 3 1/2" inches - maybe a tad more
works pretty nicely - for short pieces like
christmas ornaments in my case but should
do ok with other small hollow forms.


Tom