David Marks Turning Large Vessel *LINK*

Like that tool support board!

Re: David Marks Turning Large Vessel

Keith Newton

I kinda breezed through that, did he tell how long it took to hollow that one?

Re: David Marks Turning Large Vessel

John K Jordan

Keith,

I didn't catch that but elsewhere David mentions "I've been working 6 to 7 days a week into the night for so many months now that coffee doesn't seem to do much anymore...."

http://myemail.constantcontact.com/News-from-David-J-Marks-Designer-Craftsman.html?soid=1100994385762&aid=mcYYSiVFNYE#LETTER.BLOCK12

I think he mentioned the effort on Facebook but I can't find it now.

JKJ

Re: David Marks Turning Large Vessel

Stuart Johnson

I can't say without watching the video again but he said it was started as wet in January and would be 1/4 inch when completed and finished in May. It was to be shipped in June. His drying procedure was very interesting.

Did any of you see it at the Symposium?

Re: David Marks Turning Large Vessel

john lucas

when your hollowing with a bar that size it really shouldn't take that long. I took a class with Frank Sudol. We used his beg bars which weren't that big, about 1 1/2" diameter I think. Very heavy it was all one person could do to pick it up and put it on the lathe. We hollowed 14" deep to about 3 or 4 mm thick roughly 7 or 8" in diameter. Only took an hour or two. A bar that big takes a very big but controlled bite. If you use the steady rest (which we didn't) it would go even faster because you wouldn't have the chatter.

Now turning and sanding the outside would take a while but when I did my 54" gun lamp the outside was turned and sanded in a day. Took tons of hours to cut and glue up all the staves but the turning when fairly fast. I have the mock up still in my shop and I'm going to turn it one of these days. I'll try to keep track of how long it takes.

Now if he included how much time it took to build that captured bar system to do that piece then we are talking quite a few hours. Don't know how deep Lyle's big system will go but bet it would get close.

Re: David Marks Turning Large Vessel

Joe Meirhaeghe

You can hollow 30" deep with Steve Sinners 1 1/4" dia. boring bar. We don't really keep time on our pieces but we've rough hollowed similar size pieces to about 1/2" wall thickness in a day. The cutter you use can make a big difference. We use a Rolly Munro which is much faster than a scraper cutter.