Woodworker's Journal 2008-32-5, страница 20
THIS ISSUE'S EXPERTS Cliff Paddock is director of product management for Freud. Gary Blanchette is director of product development for Stanley-Bostitch, where Dr. Edward Sutt — who has a Ph.D. in designing nails — is also known as "Dr. Nail." George Vondriska is the proprietor of The Wild Earth School, where he teaches woodworking, and is a contributing editor to Woodworker's Journal. Dr. Nail's Fastening Advice Contact us by writing to "Q&A," Woodworker's Journal, 4365 Willow Drive, Medina, MN 55340, by faxing us at (763) 478-8396 or by e-mailing us at: QandA@woodwori(ers]oumal.com Please include your home address, phone number and e-mail address (if you have one) with your question. When I use my pneumatic nailer, I'm not sure how much nail/brad depth is sufficient to securely hold two pieces together. How do you calculate the gauge/length versus the thickness of the wood to ensure secure attachment? Amy M. Nielsen Maple Valley, Washington A good rule of thumb is to use nails that are three times as long as the thickness of material you are joining. For example, if you are securing a 3/4"-thick board, you would want to use a 274m length fastener. If the thickness of the substrate to which you are fastening your board won't allow for this length of fastener, simply add the thicknesses of the two boards you are securing together and then subtract 1/4" to allow for countersinking. A general guideline for fastener gauge would be to use a 15- or 16-gauge fastener with 5/8" thick or greater stock, an 18-gauge fastener for 1/4"- to 5/8"-thick stock and a 23-gauge pin for stock a 1/4" thick or less. Typically the lower the gauge, the better the holding po_wer, but this larger fastener can sometimes cause splitting — dependent on how close the fastener is to the edge of the board and the species of the wood itself. The best thing to do is to run a trial with some scrap pieces of wood to determine what size works best — Gary Blanchette and Dr. Edward Sutt Nailer depth setting vs. the thickness of your wood: A good rule of thumb is to use fasteners three times the thickness of your wood. I have a 12"-diameter m table saw blade that "sings" every time I turn on the saw. The longer the saw runs, the higher the pitch gets. I haven't run a board through the saw because I'm not sure if this blade is safe. William Holland York, Pennsylvania RECALL NOTICES! A recall is in effect involving model number DW744 DeWalt Jobsite Table Saws with date codes ranging from 200715 to 200740. The pivot bracket on the saw can separate, which can misalign the blade and the fence and cause kickback, posing a laceration hazard. For more information, visit www.dewalt.com or call 888-742-9178. A recall is in effect involving part number 81600 Paslode "Tall Red" Fuel Cells for Framing Nailers with "best-use-before" dates of August 9,10 and 11, 2009, and manufactured dates of February 11,12 and 13, 2008. The fuel cells can leak fuel, posing a fire hazard. For more information, visit www.paslode.com or call 800-222-6990. A recall is in effect involving Cabot Composite Deck Cleaner #3502. One of the components can react with metal foil residue on the packaging, releasing heat and chlorine gas and posing a fire and inhalation hazard. For more information, visit www.cabotstain.com or call 877-755-3336. 20 October 2008 Woodworker's Journal |
