26.01.2020  Author: admin   Wood Gifts You Can Make
Reply to Charles. They can get caught and damage the furniture or its equipment. Get it cut, seal the cut ends, slab it with a chainsaw or split it into whatever size is manageable, raise it off the ground, and get it stacked and stickered in a wkod, shaded spot with some kind of cover over the top. Sounds like that worked fantastic do it yourself wood drying kiln you those! To clean the surface youtself metal fittings and cover the metal with a protective film, it is very good to wipe with a suede cloth with the addition of a special polish. The cone is held by a retaining bar and a moving rod. Bmmyers8 Question 3 years ago on Step 4.

There are ways to use less oil, but when a project requires bd. Eugene Wengert, an extension forest products specialist at the University of Wisconsin—Madison. I have managed to obtain green wood at a lumberyard at a fraction of the price of dry wood. Granted, there is a fair amount of sweat equity involved in stacking and transporting larger amounts of wood, but the savings are well worth the effort.

A solar kiln is the simplest and safest way to dry green wood quickly. Because the wood is protected from the elements, this solar kiln offers more control with much less chance of defects than air-drying provides.

No sweating over daily drying rates and continual monitoring of the drying process. I talked with a number of solar-kiln owners for this article. I discovered they all share one problem: where to store all their wonderful solar-dried wood.

I downsized Dr. I changed the construction a bit so it could be disassembled and stored in a garage or shed when not in use. The smaller size allows me to remove the roof and front panel for easy loading. If you wish to alter the size of your kiln, there is an important ratio to remember: For every 10 bd. Since my kiln is designed to hold about bd.

I installed a single fan rated at 1, cubic feet per minute cfm to circulate air through the stack of wood. A larger kiln will require two such fans for optimum airflow. Shoot for approximately feet per minute fpm air velocity through the stack. The fan is mounted high where it can push the hot air down through the stack Fig.

A, below. Roof angle is important. In Minnesota, for example, our latitude is about 45 degrees north, so I mounted the solar panel at a degree angle. Even so, most hardwoods can be dried in six weeks during the peak summer months. Our load of basswood took only four weeks. A solar kiln is cyclical Fig. During the day, the kiln heats up and the fan comes on to circulate hot air through the stack. At night, the cooling cycle begins. The temperature drops, the fan shuts down and the moist air condenses.

The surface of the wood gets wet and cool, relieving any drying stresses that built up during the day. This helps remove the moist air quickly. After the majority of the moisture is out of the wood, which usually takes a week or two, go ahead and shut the vents to maximize the temperature. This keeps the humidity in the kiln from dropping too quickly and slows the drying process. For fast-drying or white woods, leave the vents wide open until the wood reaches 20 percent moisture content.

After a few weeks with the vents closed, most of the moisture will be out of the wood. Open the vents a few inches to help expel the remaining moisture. Shut the vents for the last week or so.

Drying thicker wood does require some monitoring of the drying rate. You can learn all there is to know about solar kilns and wood drying at www.

Click on The Wood Doctor. Building the kiln is straightforward. All the materials are readily available at home centers or lumberyards. Be sure to use corrosion-resistant fasteners throughout the kiln see Sources, below.

The kiln is made up of six panels Fig. B, below —floor, roof, front, back and sides—that can be built in the comfort of your shop Photo 1. Insulation in the walls and floor helps the kiln retain heat, which helps speed the drying process. All of the interior surfaces are coated with a flat black oil-based paint. The oil base prevents moisture from penetrating into the wood, and the flat black color absorbs heat from the solar energy. The solar-panel roof is made with translucent corrugated-fiberglass roofing material.

It offers the best combination of low cost and durability. The corrugated roof must be sealed against the roof frame at the top and bottom edges. Corrugated roofing manufacturers offer various solutions to this problem, such as wood strips cut to match the undulating roofline or strips of foam that conform to the corrugations. To increase the insulating value of the roof, I also stapled clear 6-mil-thick plastic sheeting on the underside of the roof frame.

I set down treated landscape timbers to hold the kiln up off the ground Photo 2. The timbers provide a level platform for the kiln to rest on. I started by securing the floor to the timbers, then added the back and sides Photo 3. After attaching the fan plenum Fig. B to cleats mounted on the side panels, I drilled a hole for the fan cord. Finally, the kiln was ready for loading. All I needed was some green wood to dry.

Loading the kiln is a breeze with the roof and front panel removed Photo 4. Note: Be sure to stack the wood to leave at least a 6-in. I added a couple of remote sensors in the middle of the stack so I could tell when the wood was dry without having to open the kiln Photo 5.

Figure 1. Solar kiln Design. Be sure the studs on the side walls frame openings for doors at least as large as the end dimensions of the wood pile.

The back wall studs should frame four 1-foot square vent openings, two on top and two on the bottom. Paint the interior walls in the same manner as the floor. Cover vents with screen, to keep birds and rodents out, and simple doors. The fan baffle ensures that air flows through the wood pile rather than over the top of it Figure 2.

Cut holes for mounting two electric fans as close to the roof as possible to eliminate dead hot air pockets in the upper corner. The baffle should extend from the roof to within 6 inches of the lumber pile. A sheet of plastic or canvas can be used to Do It Yourself Wood Lathe 40 close the gap between the baffle and the lumber pile. Figure 2. The baffle forces air drawn in by the fans to flow through the lumber pile before exiting the kiln. Mount electric fans to the baffle. Temperature can exceed degrees F inside the kiln, so avoid fans with plastic parts that Do It Yourself Wood Picture Frames Youtube could melt; typically, multispeed, metal window fans are used.

Fans should blow towards the front of the kiln away from top vents. Raise the kiln off the ground with cinder blocks or railroad ties, or construct a cement foundation. The kiln floor structure will deteriorate rapidly if resting directly on the ground. Align the kiln so the angled roof faces south. Stain the exterior of the kiln with a dark-colored stain. Do not use any covering that is impervious to water and may trap moisture in the insulation, such as oil-based paints.

Cover the kiln roof with one or two layers of translucent fiberglass, plastic film or glass. Two layers will decrease drying times. Fiberglass is inexpensive, resistant to breaking and the easiest to work with. Apply a non-hardening, silicone caulk to the outer surface of the frame to provide Do It Yourself Wood Desk Windows a seal between the plastic and the wood. Secure the fiberglass to the frame with 1 x 4-inch treated wood strips. Following simple guidelines for obtaining logs and sawing them into boards will help to ensure the highest possible Do It Yourself Wood Headboard Ideas 4d lumber quality.

These guidelines can eliminate needless quality losses later in drying. Obtain logs from live trees. Avoid logs with large wounds or dead branches. Standing dead trees frequently are heavily stained and may not produce premium-quality lumber. End-coat all logs as soon as possible after the tree is felled to prevent rapid drying of log ends. Rapid drying can cause end checks and cracks. Satisfactory end coatings include water-based wax, asphalt-based roofing cement, aluminum paint in a spar-varnish base, and paraffin.

Saw logs into lumber as soon as possible. In the summer, quality loss in logs can begin within one week; in winter, losses won't be detectable for several months. If sawing must be delayed, retard quality loss by submerging logs in water or continuously sprinkling them with water. Before sawing logs, carefully determine the lumber thicknesses needed. If projects require thicker lumber, it is better to saw 1-inch boards, dry them, and glue them back together in the same order as they were sawn.

Do not plan to resaw thick dried lumber--saw it to the desired size before drying. If the lumber is variable in thickness, uniform thickness should be obtained by planing one or both faces. Planing reduces face or surface checking and cracking, and uniform thickness helps to prevent warping during drying. If you are unable to saw your own lumber, find a commercial sawmill to process your logs into lumber.

You can still save money over retail lumber prices by drying the lumber yourself. It is important to prepare lumber and begin drying it soon after the lumber is sawn. Green lumber will begin staining immediately if not stacked and dried--especially in warm weather. If polyethylene glycol PEG is used, to prevent green wood from swelling or shrinking during or after drying, the lumber should be put into the solution immediately after cutting.

For optimum lumber quality, load the dry kiln according to the following suggestions. Place "stickers" on the kiln floor, perpendicular to the lengthwise direction of the lumber pile. Never place lumber directly on the floor. Stack lumber in single layers of uniform thickness, with the thinnest material on the bottom and the longest boards on the outside edges.

Separate each layer with stickers of uniform thickness. Place the stickers every 12 to 18 inches along the length of the pile, directly above the stickers in the layer below. Stickers allow air movement through the pile and prevent warping.

Make sure there are stickers above and below every board end--whether at the pile's end or somewhere in the middle. A board with a loose end will warp. Fill the kiln to its designed capacity, to within 6 inches of the bottom edge of the baffle, and to a width that leaves one foot of air space on the sides Figure 2.

A smaller load will dry more rapidly than is desired.



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