Will wrote:
I thought I saw a glue line on the box elder piece... That's the one
that bothered me... Maybe you poke something in from the end and then
"stoppered the piece with the finial... Too many possibilities...
Maybe not, But don't see how it could have been turned in one piece.
Will, both pieces were simply held on a 3/8" screw spindle, or "wood
worm" as it's also known. I used a special chuck fixture I designed,
fabricated, and "market" that offsets the spindle from center (not going
into commercial production here, don't want to, but they are available
on a limited production basis--I've sold 9 so far).
You can see the setup he
http://www.token.crwoodturner.com/ecc/index.html
For all pieces like this, I start with drilling a 3/8" hole in the
bottom, screwing it on the spindle, then turning from top to bottom.
Each step in the spiral is turned at the same offset, about 5/16" from
center, but the piece is moved about it's own center by 30 degrees for
each step. Each step is sanded to 800 grit before going on to the next one.
When I get down to the base, I back the piece off a little on the
spindle so I can finish the bottom with a parting tool. That's it for
the box elder piece, but the cherry piece had some extra work because I
had to hollow out the base to fill it with lead shot.
Normally, a paperweight is hollowed out from the bottom and a plug glued
in so there's no glue joint visible. I didn't have an easy way to chuck
the piece that way, so I decided to hollow it out from the top.
So, once I was finished with the spiral part, but before shaping the
base too much, I made a 45 degree cone-shaped cut into the base to part
off the spiral.
I couldn't hollow the base with the spindle inside, so I removed it and
turned a scrap piece of cherry on a faceplate, with a short 3/8" dia.
plug turned into the end, and glued the base onto that so I could hollow it.
The 45 degree parting cut I had done allowed for a good centering fit to
glue the spiral back onto the base after hollowing and filling it with
the lead shot.
All I had left to do was finish turn the base, blend it in with the
spiral a little, then part it off from the waste block, whose short 3/8"
plug was left in the base to plug up the bottom.
I can show you a very close cropping from the 1200 x 1600 pxl
original, it's barely visible--but do you wanna guess where it is first?
Hope you enlighten us.
Beautiful work and finihing.
Thank you. Hope your headache is gone now!
Here's the pic of the glue line I promised--it's so close, you can see
my fingerprint LOL:
http://www.token.crwoodturner.com/images/glue-line.jpg
Ken
----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==----
http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups
----= East and West-Coast Server Farms - Total Privacy via Encryption =----