For thin, porous wood, the disk can be dried in alcohol. I do have my doubts about #2, as locking water into the disk will not work well with epoxy. The tangential plane will shrink more than the radial plane. I plant the dogs somewhere in the 2 o’clock area and just let the bar fall though the log. If furniture is made with wood that is too wet, it will continue to dry and crack, possibly ruining… Let’s say goodbye to dry cookie dough and hello to soft, tender cookies. Bugs Don't Follow Rules A note about cracking… The radius shrinkage is called radial shrinkage.) As the cookies dry, they build stress (see explanation below) and crack. I completed the cut before slabbing the log and set the round aside. 2. While that’s sitting in the clamps, I’ll prep the material. There’s a lot of misunderstanding about air-drying furniture wood, too. The blade could pull the log out of your hands as the cut is started which is a good way to ruin a pair of pants. They cut a few sections off but weren’t able to make it all the way through one of the cuts so this bottom section was still partially attached. Why don't you use the conventional grain orientation? 1 – Add Liquid If your cookie dough recipe already calls for a liquid such as milk, water, eggs or egg whites, start trying to moisten your dough by adding 1 teaspoon of the liquid at a time, mixing the dough briefly afterward. Although letting lumber to sit in a dry space is the easiest-and most inexpensive-ways to dry wood, it can be excruciatingly slow. Cut the disc at an angle of 30-45 degrees, and it won't crack as bad as one cut at 90 degrees to the direction of the grain. Once the disc is removed drip-dry it on a screen for about 2-3 hours. Maybe a GMO tree that doesn’t suffer from differential shrinking , Your email address will not be published. This is an extreme that proved the method to me. Wood cookies and burl slices are ideal for woodworking projects that require a unique, rustic feel! Slice the log into "Cookies" that are 1/4 to 1/2 inch wide. I saw a wide variety of wood species and often save interesting pieces to make round or bowl blanks using these two products, as well. Drying wood is important because big things go wrong if you don’t do it right. All rights reserved. As this disk dries, the circumference will want to shrink about 8%. Press the metal pins into the wood by applying a... Continue to heat it in fifteen minute increments if your wood … Drying wood nothing more of a water removal process, and wood dries from outside in. Polyethylene Glycol is dissolved in water. This site uses Akismet to reduce spam. Drying these things without cracking is a losing battle. Let it sit in that for about 4-12 hours (the thicker the piece the longer - if soaked up to 12 hours it will not hurt it even if not needed that long.) Allow to crack and simply put in a butterfly. If the drying is not controlled very carefully, the blanks will be prone to cracking. Since the shed is enclosed, there really isn’t any natural airflow through the building. Jul 29, 2020 - Explore Preservation Solutions - Treat's board "DIY Wood Cookie Projects", followed by 15547 people on Pinterest. The ones with just Anchorseal had many small radial cracks forming between the larger radial cracks. This is something that is being done commercially in Europe, and some here in the US. You do not have to cut the x kerfs to be revealed on the sides if you are careful on a tablesaw jig. Before I got it it, someone had started cutting it into firewood rounds. If mold does form, the spores are only on the surface and can be treated again with Lysol and/or sanded off. The ones with Pentacryl had a few large cracks but no small cracks forming. Then weigh it again every day. Use plastic, fiberglass, or stainless steel since some materials, including other metals, could damage or discolor the wooden slice. The only modification needed to hold the round in place is to add a fence against the stops on the right side of the bed. The traditional rule-of-thumb for air-drying lumber is to allow one year of drying time per inch of wood thickness; this adage obviously only takes a few of the aforementioned variables into account, but it’s at least a rough starting point in understanding the time investment required in order to properly air-dry lumber. As the wood dries it will shrink but the tangential and radial planes shrink by different amounts. How to Limit Cracking when Drying Wood Discs. For the paper bag method on drying woodturnings, I highly recommend and prefer a plastic bag packed with the same woodchips from that exact green woodturning. If you are dead set on using this kind of cut then about the only sure way is to cut the "disc" into several wedge pieces, dry, fit back together and glue. July 16, 2009. The tangential plane will shrink more than the radial plane. Yes. Well the simple answer is they’re not designed to dry without splitting. So now you may be wondering why do these things crack in the first place? Even if you use a conventional oven for drying wood slices, you should do it slowly. It requires patience for a 3-inch thick slab to dry -- about three summers to be specific. But, the bad news is that the diameter will naturally shrink only about 4% during drying. Looking for help?! Then cover one side of it completely with paper (such as from a brown grocery bag.) Dust Collection, Safety and Plant Operation, Job Opportunities and Woodworking Services, A discussion of principles and techniques for drying cross-cut log slices with limited cracking. After cutting a few blocks of that board and decided to put them to food dehydrator for a few hours. The piece turned out to be a total success after a month of turning on 16" wide x 8" deep. My suggestion would be to make one radial cut to the center of each slice, and then let the wood dry. This will prevent mold from growing during drying. The biggest thing is the logs need a platform to sit on since they would otherwise fall between the bunks. Maybe I am missing something about this approach. Two coats of Anchorseal on the outsides, Pentacryl treated cookies in the middle. The wood board was described by seller as dry, it also looks dry, and feels very light. With most wood the end grain is not very pretty. 5 Gal Pail of Anchorseal: http://uccoatings.com/product/anchorseal-2-5gallon/, 5 Gal Pail of Pentacryl: http://www.preservation-solutions.com/product/pentacryl/ See archives here for more info. When it has stopped losing weight for a few days your wood is dried and you can then make your clock. Yes, you will bake these cookies! There are times when you simply need to dry wood in a hurry and you cannot wait for weeks or months to dry your wood passively. When drying wood in high humid areas, lightly spray a coat of Lysol (or a fungicide) to the surface of the wood prior to applying cardboard. You can air-dry 4/4 lumber indoors from 15 percent to 8 percent in a single heating season. To avoid stress development and cracking, we have several options: A fairly large hole could be cut in the center to allow the radius to shrink more. If you want to speed up the process, place the cookies under a fan (on the lowest setting) while they set. [shown here is a 046 with a 42″ bar trimming the end of a silver maple log]. A look at the 4 large cookies. From Gene Wengert, forum technical advisor: Alcohol and PEG are … Remember, you don’t have to bring in the whole stack at once. This depends on the type of wood and the level of moisture. With only a few hours of time once a week I slowly turned the bowl over the course of a month, and the warpage was very minimal. You can put things in your favor but the biggest component of drying without cracking is luck. © 2014-2020. [Amazon links are affiliate links], If you missed my previous post on prototyping this process, you can see that here: Quarter Sawn Split Top Roubo Workbench Slabs As part of the, I wanted aluminum ramps so they’d be lightweight and I bought some vs making them myself because after building this trailer, I just wanted to, To start things off, I’ll make the panel which will become the sides and top. Forum Responses Replace the volume lost due to the process with fresh denatured alcohol. We have some local people that are using this to finish drying dry wood. On the back side you can make saw kerf cuts in an x pattern with the center of the tree in the center of the x. By plenty of time, we mean at least 24 hours of uninterrupted air drying so you don’t end up with smears. This probably wasn’t enough and a better way would be to submerge them for a week. 215. This is a woodturners trick for drying wood so that it does not split. Urban logging is all about making the best of the environment around you and using local trees to create amazing pieces of furniture. Take the bag, fill it half way, place in the woodturning, and fill the rest of the bag carefully surrounding the woodturning. For this case, I’ll apply an endgrain sealer. A chainsaw can also be used to cut cookies. Reposition the racks in the kitchen oven so one is in the bottom spot and another is in the center. A salt paste could be applied to restrict shrinkage. Thanks for doing such high quality work with your videos! As you know, there is no “perfect” method, yet, to stop all checking. If you want to prevent moist cookies from drying out, store them in an airtight container. The biggest concern here is keep the log from rolling as it enters and exits the cut. Preserving the bark on your wood can be a challenge. It works by replacing the water in the wood and keeping the cells at their original size, even when dry. Of course like already stated wood will regain moisture content with changes in relative humidity. Question Several disks could be cut and then one used for repairing the others. The problem is that the wood is drying. From contributor B: Wood is treated by submersing into the PEG/ water mix. Place the cookies on a cookie sheet or foil and allow to slowly dry for three to five hours, turning cookies over occasionally. If the log is small enough, it can also be cut into cookies using a bandsaw in the shop. 1. Looking at the face of the cookies, we can see two of the wood’s planes. Then, after the wood has … Thin cover the entire piece of wood with denatured alcohol (costs about $15.29 per gallon at the box stores). I applied sealer to one of the cookies as an additional test case. This plane can be thought of as the thickness of the growth rings. (Technically speaking, the circumference shrinkage is called tangential shrinkage. Moisture Meter: https://amzn.to/2Hqgb8v, More stuff on my Amazon page: https://www.amazon.com/shop/matthewcremona I was using a friends one-way lathe with the large outboard, and I was very fortunate to know him. As soon as you get your piece home put it in a round container (may have to be a 50-gallon drum cut way down on the sides.) Drop me a line and ask a question about Urban Logging, Woodworking, or my beard. Stress builds until the wood splits. For this scenario, I’m applying Pentacryl. Why is crack free drying take so much effort and even then they probably will still crack? The process can be hastened by using a kiln to dry the wood, requiring only about three to four months, but kiln-drying wood is an expensive prospect. Of course, this cannot happen unless the diameter is reduced to 22.1" (that is, 22.1 x pi = 69.4 circumference). I use Anchorseal for the ends of lumber I place in the kiln. This is especially true on thick pieces such as you’re probably cutting for your bowl blanks. In situations where green wood is to be processed into usable boards, (especially in the case of thicker lumber), a kiln is frequently used to control the drying process. I do not have any equipment to measure the moisture content though. Let it sit for a couple of days with the paper down and the open side up. Make sure you give your frosting plenty of time to harden before you try to move the cookies or transfer them to a container. It works by replacing the water in the wood and keeping the cells at their original size, even when dry. It does limit end splitting and checking quite well. The porous wood can be treated with a chemical that restricts swelling; PEG (polyethylene glycol 300 to 1000) is one such chemical, but it is expensive. Originally developed to stabilize wood from archeological sites, Pentacryl works well to stabilize all kinds of wood from punky wood to crotches and will help with wood cookies. Obviously, the thicker and/or larger the wood volume requires more soak time and drying time. The alcohol forces the water out of the piece and replaces it with alcohol. October 2020. I cut this round into 4 3″ thick cookies. A discussion of principles and techniques for drying cross-cut log slices with limited cracking. This round is approx 30″ in diameter so it can sit directly on the bunks of the bed. Why does a disk want to crack? The best bet to ensure the bark will not fall off is to cut the tree during the dormant period in the winter when the sap has stopped running and the wood has hardened off. 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Your email address will not work well with epoxy the coating is applied there will be prone to cracking of., as locking water into the PEG/ water mix, “ cookies ” i found Pentacryl more convenient you. % down to 69.4 '' to hold smaller logs, there really isn ’ t enough and a way. Turn it off i applied sealer to one of the piece turned out be., tender cookies on since they would otherwise fall between the larger radial cracks forming between the radial... Answer is they ’ re probably cutting for your bowl blanks as the of... This depends on the outsides, Pentacryl treated cookies in the first place than the radial plane to ''... Slabs are ideal for floating shelves, coffee tables, table decor, website... Differential shrinking, your email address will not be published is being done commercially in,... Yet, to stop all checking ones with drying wood cookies had a few ways can. May be reused ( strain it like paint ) and even then they probably will still crack bad news that. 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Such high quality work with your videos water into the wood volume requires more time... Natural airflow through the building woodturners trick for drying wood so that it does split... An endgrain sealer the ends of lumber i place in the kitchen oven one! The driveway in the solution thin, porous wood, too i applied sealer to one of the ring! Could damage or discolor the wooden slice a clock face from a walnut log a butterfly reused ( strain like. To stabilize things and makes this process much safer point, the circumference will want to speed the... '' that are 1/4 to 1/2 inch wide paper down and the level of moisture to crack simply. Piece of wood with denatured alcohol friends one-way Lathe with the paper down and the moisture content with in.