Post a Response Subscribe Guidelines

Sawing and Drying

You are not logged in. [ Login ] Why log in
(NOTE: Login is not required to post)

Resawing air dried black walnut

5/12/14       
Mike Member

Three years ago I had a black walnut log sawed into ~2'x11' planks, each about 4 to 4.5 inches thick. I plan on building a live edge dining room table. THey have been stickered and air drying next to my house in a shelter I built. Looking back, I probably should have cut the slabs a little thinner so they would dry quicker. Similar tables have finished thicknesses closer to 2.5". I have two questions:
1) it seems wasteful to thin a 4" slab to a 2.5" finished thickness. Should I anticipate needing this much waste due to warping, etc?
2) how/when would you recommend I resaw planks into a couple that are 2" thick for another purpose? I'm concerned about warping if the centers are not yet dried. Even when they are "dry" the centers will differ from the edges with likely consequences. Should I instead cut thinner pieces from each face, leaving a 2" thick center piece? I would rather net two pieces that are 2" think though.

Thanks!
Mike (new guy)

5/13/14       #2: Resawing air dried black walnut ...
Gene Wengert-WoodDoc

Take a pin meter with insulated needed and see what sort of gradient you have. If none, the resawing should go smoothly.

5/14/14       #3: Resawing air dried black walnut ...
Dave Boyt  Member

Website: http://www.norwoodsawmills.com

Do you detect any cupping or other warping at this point? Determining moisture gradient is important, since you don't want to resaw when there is stress in the boards. Boards that wide can be tricky to resaw, I would rip them in half, resaw, kiln dry, surface & plane them, then joint and reassemble the pieces.

5/14/14       #5: Resawing air dried black walnut ...
Mike Member

Nothing obvious, but it's hard to tell while they're stacked and covered by my shelter. I've attached some pictures.

I have a pin moisture meter, but that's only good to an ~1 inch. The most effective way, and I did this after year one, is to cut off an end and measure the cut face. At the time, it was still obviously wet in the middle...football-shaped green center. I would rather not take too many cutoffs. Because the planks are so thick, the cutoff lengths get to be more loss than I would like. There's probably no other way though.

I can rip the planks narrower for the pieces that will be used for projects other than my table top. But I would not want to rip the table boards. If 4-4.5" thickness is too much or too wasteful for the top and I should resaw as a result, that's where it seems I will have the most difficulty unless they are bone dry. That's what I think I'm hearing here. Maybe it's not worth the risk and I should plan on taking the 4-4.5" thickness down to the final dimension without trying to salvage thinner pieces.

Mike


View higher quality, full size image (448 X 336)


View higher quality, full size image (448 X 336)

5/20/14       #6: Resawing air dried black walnut ...
Steve McGuire

A table with a 4" top will never be stolen. lol

FWIW:
I cut my slabs at 2 3/8" and I see many are cut at around 3". Walnut seems to be pretty stable from warping as long as there is enough weight on it. Thicker slabs warp less than thinner. Since they've been cut that thickness I'd go with that thickness. Maybe resaw the very center cut slab for legs to get rid of the heart center.
Drying can be done with a cheap Walmart dehumidifier and a Harbor Freight tarp. . Put the stickered slabs on a dry base (garage floor?), cover with a tarp tent so air can flow all around with the DH unit under the tarp and let it run. Thinner slabs need to be removed sooner other wise they will dry too much.


Post a Response
  • Notify me of responses to this thread
  • Subscribe to email updates on this Forum
    • To receive email notification of additions to this forum thread,
    enter your name and email address, and then click the
    "Keep Me Posted" button below.

    Please Note: If you have posted a message or response,
    do not submit this request ... you are already signed up
    to receive notification!
    Your Name:
    E-Mail Address:
    Enter the correct numbers into the field below:
     

    Date of your Birth:



    Return to top of page

    Buy & Sell Exchanges | Forums | Galleries | Site Map

    FORUM GUIDELINES: Please review the guidelines below before posting at WOODWEB's Interactive Message Boards (return to top)

  • WOODWEB is a professional industrial woodworking site. Hobbyist and homeowner woodworking questions are inappropriate.
  • Messages should be kept reasonably short and on topic, relating to the focus of the forum. Responses should relate to the original question.
  • A valid email return address must be included with each message.
  • Advertising is inappropriate. The only exceptions are the Classified Ads Exchange, Machinery Exchange, Lumber Exchange, and Job Opportunities and Services Exchange. When posting listings in these areas, review the posting instructions carefully.
  • Subject lines may be edited for length and clarity.
  • "Cross posting" is not permitted. Choose the best forum for your question, and post your question at one forum only.
  • Messages requesting private responses will be removed - Forums are designed to provide information and assistance for all of our visitors. Private response requests are appropriate at WOODWEB's Exchanges and Job Opportunities and Services.
  • Messages that accuse businesses or individuals of alleged negative actions or behavior are inappropriate since WOODWEB is unable to verify or substantiate the claims.
  • Posts with the intent of soliciting answers to surveys are not appropriate. Contact WOODWEB for more information on initiating a survey.
  • Excessive forum participation by an individual upsets the balance of a healthy forum atmosphere. Individuals who excessively post responses containing marginal content will be considered repeat forum abusers.
  • Responses that initiate or support inappropriate and off-topic discussion of general politics detract from the professional woodworking focus of WOODWEB, and will be removed.
  • Participants are encouraged to use their real name when posting. Intentionally using another persons name is prohibited, and posts of this nature will be removed at WOODWEB's discretion.
  • Comments, questions, or criticisms regarding Forum policies should be directed to WOODWEB's Systems Administrator
    (return to top).

    Carefully review your message before clicking on the "Send Message" button - you will not be able to revise the message once it has been sent.

    You will be notified of responses to the message(s) you posted via email. Be sure to enter your email address correctly.

    WOODWEB's forums are a highly regarded resource for professional woodworkers. Messages and responses that are crafted in a professional and civil manner strengthen this resource. Messages that do not reflect a professional tone reduce the value of our forums.

    Messages are inappropriate when their content: is deemed libelous in nature or is based on rumor, fails to meet basic standards of decorum, contains blatant advertising or inappropriate emphasis on self promotion (return to top).

    Libel:   Posts which defame an individual or organization, or employ a tone which can be viewed as malicious in nature. Words, pictures, or cartoons which expose a person or organization to public hatred, shame, disgrace, or ridicule, or induce an ill opinion of a person or organization, are libelous.

    Improper Decorum:   Posts which are profane, inciting, disrespectful or uncivil in tone, or maliciously worded. This also includes the venting of unsubstantiated opinions. Such messages do little to illuminate a given topic, and often have the opposite effect. Constructive criticism is acceptable (return to top).

    Advertising:   The purpose of WOODWEB Forums is to provide answers, not an advertising venue. Companies participating in a Forum discussion should provide specific answers to posted questions. WOODWEB suggests that businesses include an appropriately crafted signature in order to identify their company. A well meaning post that seems to be on-topic but contains a product reference may do your business more harm than good in the Forum environment. Forum users may perceive your references to specific products as unsolicited advertising (spam) and consciously avoid your web site or services. A well-crafted signature is an appropriate way to advertise your services that will not offend potential customers. Signatures should be limited to 4-6 lines, and may contain information that identifies the type of business you're in, your URL and email address (return to top).

    Repeated Forum Abuse: Forum participants who repeatedly fail to follow WOODWEB's Forum Guidelines may encounter difficulty when attempting to post messages.

    There are often situations when the original message asks for opinions: "What is the best widget for my type of shop?". To a certain extent, the person posting the message is responsible for including specific questions within the message. An open ended question (like the one above) invites responses that may read as sales pitches. WOODWEB suggests that companies responding to such a question provide detailed and substantive replies rather than responses that read as a one-sided product promotion. It has been WOODWEB's experience that substantive responses are held in higher regard by our readers (return to top).

    The staff of WOODWEB assume no responsibility for the accuracy, content, or outcome of any posting transmitted at WOODWEB's Message Boards. Participants should undertake the use of machinery, materials and methods discussed at WOODWEB's Message Boards after considerate evaluation, and at their own risk. WOODWEB reserves the right to delete any messages it deems inappropriate. (return to top)



    • Forum Posting Help
    Your Name The name you enter in this field will be the name that appears with your post or response (return to form).
    Your Website Personal or business website links must point to the author's website. Inappropriate links will be removed without notice, and at WOODWEB's sole discretion. WOODWEB reserves the right to delete any messages with links it deems inappropriate. (return to form)
    E-Mail Address Your e-mail address will not be publicly viewable. Forum participants will be able to contact you using a contact link (included with your post) that is substituted for your actual address. You must include a valid email address in this field. (return to form)
    Subject Subject may be edited for length and clarity. Subject lines should provide an indication of the content of your post. (return to form)
    Thread Related Link and Image Guidelines Thread Related Links posted at WOODWEB's Forums and Exchanges should point to locations that provide supporting information for the topic being discussed in the current message thread. The purpose of WOODWEB Forums is to provide answers, not to serve as an advertising venue. A Thread Related Link that directs visitors to an area with inappropriate content will be removed. WOODWEB reserves the right to delete any messages with links or images it deems inappropriate. (return to form)
    Thread Related File Uploads Thread Related Files posted at WOODWEB's Forums and Exchanges should provide supporting information for the topic being discussed in the current message thread. Video Files: acceptable video formats are: .MOV .AVI .WMV .MPEG .MPG .MP4 (Image Upload Tips)   If you encounter any difficulty when uploading video files, E-mail WOODWEB for assistance. The purpose of WOODWEB Forums is to provide answers, not to serve as an advertising venue. A Thread Related File that contains inappropriate content will be removed, and uploaded files that are not directly related to the message thread will be removed. WOODWEB reserves the right to delete any messages with links, files, or images it deems inappropriate. (return to form)
    Related Information:
    Timber & Lumber Calculators
    Exchanges: Lumber
    Knowledge Base: Primary Processing

    Recent Threads at all Forums