Woodturner's Resource
Woodturner's Resource  
  • Featured Artist    • Websites   Support Wr
Tutorials, Projects & Tips   • Event Calendar   • Tool and Book Store
  Home Page Forum HelpSearch Map TPT Resources LoginRegister
 
Pages: 1 2 
Send Topic Print
Drying large bowls (Read 430 times)
 
Steve nix
WR Champion
*****
Online


WR Rocks!

Posts: 217

Iota, Louisiana, USA
Iota
Louisiana
USA

Gender: male

Grizzly mini, 1642 Jet, s750 Stubby
Drying large bowls
Jul 15th, 2017 at 6:08pm
 
I just finish ruffing out five 15-18" elm and sycamore bowls. I've had good success packing in boxes with shaving , but I don't have any large boxes. I've also coated with anchor seal but have had some black walnut crack. Question is, coat the intire bowl or just the botton side of bowl with anchor seal. At present their on my shop floor covered with shavings. Suggestions
Back to top
  
 
IP Logged
 
Register To Remove Ads
Ed Weber
WR Global Moderator
WR Patron
*****
Offline



Posts: 4,651

Wilton, California, USA
Wilton
California
USA

Gender: male

JET 1642
Grizzly G0584
Re: Drying large bowls
Reply #1 - Jul 15th, 2017 at 7:18pm
 
If you've roughed it out, coat the entire bowl inside and out.
Back to top
  
 
IP Logged
 
John Cepko
Senior Member
****
Offline


WR Rocks!

Posts: 417

Pasadena, Maryland, USA
Pasadena
Maryland
USA

Re: Drying large bowls
Reply #2 - Jul 16th, 2017 at 9:02am
 
I have noticed that when drying rough turned bowls the sap wood is most likely to crack...but it contrasts with the heart wood. To combat this, I leave the sap wood as the rim, or just turn it away all together.
It helps to cut the wood in the winter, so the sap wood has less water, and dries more in line with the heart wood.
But, yes, seal the whole bowl after roughing.
Back to top
  
 
IP Logged
 
Tom Coghill
WR Addict
*****
Offline


Turning, when I am done
with my chores.

Posts: 1,034

Anchorage, Alaska, USA
Anchorage
Alaska
USA

Gender: male

Oneway 2436, 3 HP 220V
Re: Drying large bowls
Reply #3 - Jul 17th, 2017 at 10:13am
 
End grain looses moisture faster than any other areas, causing stresses that lead to cracks.

I wrap my larger bowls in large sheets of brown packing paper (that arrives in packages sent to me in the mail).  I ensure that I pack shavings on the end grain sections and inside the bowl (but much less inside than the outside end grain).  I make the paper wrap 3 layers thick.

I have tried to avoid using anchor seal because of the hassle of removal later, however a cracked bowl is lost time, so if in doubt, use it.

I found this paper technique works well with the paper birch that I usually get here.

Hope this info may help you.  Thumbs Up
Back to top
  
 
IP Logged
 
robo_hippy
WR Addict
*****
Offline



Posts: 2,559

Eugene, OR, USA
Eugene, OR
USA

Re: Drying large bowls
Reply #4 - Jul 18th, 2017 at 10:24am
 
The sycamore can move way beyond the 10% rule, so keep an eye on it. You can compress the rim from end grain to end grain to help stop or at least slow it down, which can involve clamps or a round plywood form. Other than that, slow it down. Too fast and it cracks. Too slow and it molds/rots.

A method I saw that Christian Burshard uses on his madrone, is to put the piece in a paper bag first, than put that in a plastic bag. Change out the paper daily. Bags can be reused. If I wanted to put a piece in shavings, I would use dry shavings, not wet ones. I have had some pieces pick up ugly colors after a day or so in wet shavings.

robo hippy
Back to top
  
WWW  
IP Logged
 
Ed Weber
WR Global Moderator
WR Patron
*****
Offline



Posts: 4,651

Wilton, California, USA
Wilton
California
USA

Gender: male

JET 1642
Grizzly G0584
Re: Drying large bowls
Reply #5 - Jul 18th, 2017 at 10:40am
 
robo_hippy wrote on Jul 18th, 2017 at 10:24am:
A method I saw that Christian Burshard uses on his madrone, is to put the piece in a paper bag first, than put that in a plastic bag.


This is the method I have used with good results.
(I had no idea who Christian Burshard was, had to look him up)
It allows the wood to release "some" moisture but only a measured amount until you change it's diaper (AKA, paper bag)
IME (in my experience) The first few days worth of paper bags are not reusable, just a soggy paper mess. Once you get the initial "wet" out of it, (not dripping) then it's not too bad.
Maybe I should try a diaper in a plastic bag  Undecided
Back to top
  
 
IP Logged
 
Ralph Fahringer
WR Patron
******
Offline


I'm the "Burly" Man!!

Posts: 671

Ellsworth, Maine, USA
Ellsworth
Maine
USA

Gender: male

PM3520b
Re: Drying large bowls
Reply #6 - Jul 18th, 2017 at 12:08pm
 
Actually, diapers might not be such a bad idea.

The material in them is the same stuff you put into plant soils to retain moisture so they would absorb alot of water before being useless. Would be interesting to see how it works on a scrap piece of green wood.

They could be reused by setting them out in the sun and letting them evaporate.

Who on here is either young enough to have babies or old enough to need depends????  Shocked Thumbs Up
Back to top
  

Originality is the art of concealing your source.
 
IP Logged
 
Ed Weber
WR Global Moderator
WR Patron
*****
Offline



Posts: 4,651

Wilton, California, USA
Wilton
California
USA

Gender: male

JET 1642
Grizzly G0584
Re: Drying large bowls
Reply #7 - Jul 18th, 2017 at 2:54pm
 
Ralph Fahringer wrote on Jul 18th, 2017 at 12:08pm:
Actually, diapers might not be such a bad idea.


The light bulb came on as I was writing it
Back to top
  
 
IP Logged
 
Register To Remove Ads
Ralph Fahringer
WR Patron
******
Offline


I'm the "Burly" Man!!

Posts: 671

Ellsworth, Maine, USA
Ellsworth
Maine
USA

Gender: male

PM3520b
Re: Drying large bowls
Reply #8 - Jul 18th, 2017 at 4:30pm
 
If you wrapped a bowl in a diaper, would it pull too much water out too quickly?


Ok... i HAVE to do this:

Would it be a "bowl movement" in the diaper? Shocked Shocked

Sorry. Grin
Back to top
  

Originality is the art of concealing your source.
 
IP Logged
 
Ed Weber
WR Global Moderator
WR Patron
*****
Offline



Posts: 4,651

Wilton, California, USA
Wilton
California
USA

Gender: male

JET 1642
Grizzly G0584
Re: Drying large bowls
Reply #9 - Jul 18th, 2017 at 5:32pm
 
I suppose the 'cheap' diapers would draw out less moisture but I was thinking the same thing. They would, as they're supposed to, contain the wet mess associated with using a paper bag.
Maybe someone has tried it. Currently I don't dry too many large blanks so I'm in no position to experiment.
Back to top
  
 
IP Logged
 
Steve nix
WR Champion
*****
Online


WR Rocks!

Posts: 217

Iota, Louisiana, USA
Iota
Louisiana
USA

Gender: male

Grizzly mini, 1642 Jet, s750 Stubby
Re: Drying large bowls
Reply #10 - Jul 18th, 2017 at 7:01pm
 
Good one Ralph. I'll have to use depends on these, too large for diapers.
I've gots several turned coated with anchor seal and stored an area with no air flow and others packed in shaving that I let dry  24hr on the shop floor before packing the bowls in them in cardboard boxes.  I've had pretty good luck using shaving and cardboard boxes as long as the shaving aren't too wet them the stain lets in. Thank for the comments. " bowl movement" I love it.
Back to top
  
 
IP Logged
 
Len Layman
WR Patron
******
Offline


What have I got into??

Posts: 2,993

Grand Cayman, Cayman Islands
Grand Cayman
Cayman Islands

Gender: male

PM 3520b
Jet 1220
Re: Drying large bowls
Reply #11 - Jul 22nd, 2017 at 9:19pm
 
Ralph Fahringer wrote on Jul 18th, 2017 at 4:30pm:
Would it be a "bowl movement" in the diaper? Shocked Shocked

Grin Grin Grin Grin
Back to top
  

Len

"Our lives begin to end the day we become silent about things that matter."   MLK
WWW  
IP Logged
 
Joe Belcher
WR Noob
Offline



Posts: 13

Highland, California, USA
Highland
California
USA

Re: Drying large bowls
Reply #12 - Jul 24th, 2017 at 11:09am
 
Ralph Fahringer wrote on Jul 18th, 2017 at 4:30pm:
Would it be a "bowl movement" in the diaper? Shocked Shocked


No, because you're dealing with water only Smiley
Back to top
  
 
IP Logged
 
Bob_Macgregor
Senior Member
****
Offline


Round wood.  Sharp steel.

Posts: 453

Gender: male
Re: Drying large bowls
Reply #13 - Jul 24th, 2017 at 12:40pm
 
Absorbitive capacity of diaper chemicals...
Multimedia File Viewing and Clickable Links are available for Registered Members only!!  You need to Login or Register
Back to top
  
 
IP Logged
 
Al Wasser
WR Supporter
*****
Offline


WR Rocks!

Posts: 440

Pueblo West, CO, Colorado, USA
Pueblo West, CO
Colorado
USA

Gender: male

Robust American Beauty
Re: Drying large bowls
Reply #14 - Jul 24th, 2017 at 1:10pm
 
No bags, no boxes, use multiple layers of newspaper
Back to top
  
 
IP Logged
 
Pages: 1 2 
Send Topic Print