The Forestry Forum is sponsored in part by:

iDRY Vacuum Kilns


Forestry Forum
Sponsored by:


TimberKing Sawmills



Toll Free 1-800-582-0470

LogRite Tools



Norwood Industries Inc.




Your source for Portable Sawmills, Edgers, Resaws, Sharpeners, Setters, Bandsaw Blades and Sawmill Parts

EZ Boardwalk Sawmills. More Saw For Less Money!

STIHLDealers.com sponsored by Northeast STIHL


Woodland Sawmills

Peterson Swingmills

 KASCO SharpTech WoodMaxx Blades

Turbosawmill

Sawmill Exchange

Michigan Firewood, your BRUTE FORCE Authorized Dealer

Baker Products

ECHO-Bearcat

iDRY Wood Lumber Vacuum Drying for everyon

Nyle Kiln Dry Systems

Chainsawr, The Worlds Largest Inventory of Chainsaw Parts

Smith Sawmill Service

Dynamic Green Products Inc.





Author Topic: Kerfing cookies?  (Read 532 times)

0 Members and 1 Guest are viewing this topic.

Offline Brad_bb

  • Senior Member x2
  • *****
  • Posts: 4346
  • Age: 48
  • Location: Joliet, IL and Indy
  • Gender: Male
    • Share Post
Kerfing cookies?
« on: December 08, 2019, 04:52:27 PM »
I know the Japanese sometimes kerf posts in a timberframe for aesthetics.

Would kerfing cookies up to the pith help them in drying?

Anyone do that?  After drying you could then cut the kerf clean and insert a pie wedge from another cookie?  Or do an epoxy fill?

Thoughts?
 

  
Anything someone can design, I can sure figure out how to fix!
If I say it\\\\\\\'s going to take so long, multiply that by at least 3!

Offline Don P

  • Senior Member x2
  • *****
  • Posts: 7228
  • Location: Southwestern VA
  • Gender: Male
    • Share Post
    • Calculator Index
Re: Kerfing cookies?
« Reply #1 on: December 09, 2019, 07:46:36 AM »
Sure, Gene has suggested that a number of times. It looks like you already have an internal check started at about 8:00
A laborer works with his hands
A craftsman uses his brain and his hands
An artist uses his brain, his hands, and his heart

Offline WDH

  • Forester
  • Administrator
  • *****
  • Posts: 30680
  • Age: 66
  • Location: Perry, GA
  • Gender: Male
  • April 1998 - August 2008
    • Share Post
    • hamsleyhardwood.com
Re: Kerfing cookies?
« Reply #2 on: December 09, 2019, 07:48:38 AM »
You could leave them alone and let the cookie decide where the crack will be.  Then, you can insert or fill it. 
Woodmizer LT40HDD35, John Deere 2155, Kubota M5640SU, Nyle L53 Dehumidification Kiln, and a passion for all things with leafs, twigs, and bark.  hamsleyhardwood.com

Offline doc henderson

  • Senior Member x2
  • *****
  • Posts: 5082
  • Age: 60
  • Location: Hutchinson, Ks
  • Gender: Male
  • Evil Prevails when Good Men Standby and Do Nothing
    • Share Post
Re: Kerfing cookies?
« Reply #3 on: December 09, 2019, 09:22:19 AM »
if you create a check or let it happen, you can then follow that check and cut on though the cookie.  joint the edges of the two halves, and glue them back together.  most of the rings will line up.
timberking B 2000, 277c track loader, PJ 32 foot gooseneck, 1976 F700 state dump truck, JD 850 tractor.  2007 Chevy 3500HD dually, home built log splitter 18 horse 28 gpm with 5 inch cylinder and 32 inch split range with conveyor 12 volt tarp motor

Offline scsmith42

  • Senior Member x2
  • *****
  • Posts: 5258
  • Age: 60
  • Location: New Hill, NC
  • Gender: Male
  • He who dies with the most toys... WINS!!!
    • Share Post
    • Whispering Pines Farm
Re: Kerfing cookies?
« Reply #4 on: December 09, 2019, 09:41:32 AM »
Brad, Ive kerfed cookies before with mixed results.  In some instances they still checked rather badly in other spots.  Ive had some that opened up like a pie wedge as they dried, and others where the kerf actually stayed tight on the perimeter, opening up a bit more in the middle, while other checks developed on opposite sides of the cookie.

A few things that Ive learned.....

 1- checking is directly related to the species, and correlates with the listed radial / tangential shrinkage percentages.  Species with low shrinkage rages can be more successfully dried as cookies versus species with higher rates (such as oak).

2 - Drilling relief cuts on the bottom side of the cookie can help reduce the potential for full cracking.  What Ive done is to use a 2 Forster bit, and drill 75% or so of the way through from the bottom.  As an example, if I have a 24 diameter cookie, 2-1/2 thick, Ill drill 15 or so holes from the bottom, approximately 1-3/4 deep.  The cookie tends to dry a bit concave on top, but they are less likely to crack all of the way through.  This works very well if you pour pentacryl in the bottom side too.
Peterson 10" WPF with 65' of track
Smith - Gallagher dedicated slabber
Tom's 3638D Baker band mill
and a mix of log handling heavy equipment.

Offline Don P

  • Senior Member x2
  • *****
  • Posts: 7228
  • Location: Southwestern VA
  • Gender: Male
    • Share Post
    • Calculator Index
Re: Kerfing cookies?
« Reply #5 on: December 09, 2019, 12:57:18 PM »
Scott, let me throw another into the mix. Have you noticed checking to be greatest with woods that have high shrinkage rates or high T/R ratios?
A laborer works with his hands
A craftsman uses his brain and his hands
An artist uses his brain, his hands, and his heart

Offline WDH

  • Forester
  • Administrator
  • *****
  • Posts: 30680
  • Age: 66
  • Location: Perry, GA
  • Gender: Male
  • April 1998 - August 2008
    • Share Post
    • hamsleyhardwood.com
Re: Kerfing cookies?
« Reply #6 on: December 09, 2019, 09:49:53 PM »
My experience is that cookies from logs that have laid out for a while and aged some crack less than cookies from fresh logs. 
Woodmizer LT40HDD35, John Deere 2155, Kubota M5640SU, Nyle L53 Dehumidification Kiln, and a passion for all things with leafs, twigs, and bark.  hamsleyhardwood.com

Offline caveman

  • Senior Member x2
  • *****
  • Posts: 2151
  • Age: 51
  • Location: Lakeland, Florida
  • Gender: Male
  • In the land of the blind the one eyed man is king
    • Share Post
Re: Kerfing cookies?
« Reply #7 on: December 10, 2019, 03:18:47 PM »
I tried to cut a kerf into a live oak cookie once with my shop bandsaw and could not remove the blade so I made cookie halves.  The cookie closed up behind the blade as I cut.
Caveman

Offline scsmith42

  • Senior Member x2
  • *****
  • Posts: 5258
  • Age: 60
  • Location: New Hill, NC
  • Gender: Male
  • He who dies with the most toys... WINS!!!
    • Share Post
    • Whispering Pines Farm
Re: Kerfing cookies?
« Reply #8 on: December 10, 2019, 09:35:15 PM »
Scott, let me throw another into the mix. Have you noticed checking to be greatest with woods that have high shrinkage rates or high T/R ratios?
High T/R ratio's.
Peterson 10" WPF with 65' of track
Smith - Gallagher dedicated slabber
Tom's 3638D Baker band mill
and a mix of log handling heavy equipment.


Share via delicious Share via digg Share via facebook Share via linkedin Share via pinterest Share via reddit Share via stumble Share via tumblr Share via twitter

xx
Kerfing green timbers ?

Started by Jimbob on Timber Framing/Log construction

2 Replies
1540 Views
Last post October 25, 2007, 01:52:19 AM
by beenthere
xx
Cookies

Started by Good Feller on Forestry and Logging

20 Replies
6172 Views
Last post March 03, 2009, 10:58:06 PM
by rebocardo
exclamation
Cookies!

Started by Patty on FOOD! FOOD! FOOD!

9 Replies
2932 Views
Last post November 17, 2007, 12:26:17 AM
by beenthere
xx
Log cookies

Started by fishfighter on Sawmills and Milling

48 Replies
4453 Views
Last post December 08, 2015, 04:57:06 PM
by Jim_Rogers
 


Powered by EzPortal