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I heard you bend wood by getting it wet, i didn't know you had to cook it. permalink. embed.  A steam chamber only has to hold in steam. Not support itself or stay rigid or maintain glue joint integrity or even stay water tight it's fine for this application and will likely last a long time. permalink.  Pretty sure you just need a kettle of boiling water and a tray for bending "lumber" of that size. permalink. embed. Shopmade Steam Bending Chamber - Bending Wood Tips and Techniques | www.- Steam Box. Explore The Woodwright's photos on Flickr.  The 12 twisted and curved leaves are made using traditional steam bending techniques and attached to a solid Oak hub. An antique bronze effect screw bulb holder is included and hung on a traditional look 90cm cable, the cable can be. British Designer Tom Raffield Is Steam Bending His Way to Success.  Building a inexpensive steam box for steam bending wood, and learn about steam generators. Along with a few tips on steam bending. Facebook - www.- ok.c. Steam bending is a woodworking technique where wood is exposed to steam to make it pliable. Heat and moisture from steam can soften wood fibres enough so they can be bent and stretched, and when cooled down they will hold their new shape. In modern times, steam bending is usually done with a steam box to make it bend around a former. The moulding process is typically done by clamping wooden strips to a positive form, with the strips of wood often reinforced on the outside with a metal band to prevent. The idea is to suspend it in the air to allow the steam to flow around the wood in the bag as steam chamber for bending wood 12 as possible. Wear heavy leather gloves when handling steamed blanks. If I had a propane burner like the type used for steaming crabs outdoors would have been perfect. I also looked at a clothing steamer, but these seem too weak. All temperate-zone hardwoods chart below steam-bend well and, in general, bend better than softwoods. You can stick the thermometer in 1 end of the plastic bag or poke a small hole in the side to stick it in.

The trickiest part is the large tank needed. I just so happened to have an ancient rusty 5 gallon gas tank for an outboard motor for a boat. I tapped the pipe into the tank, which electrical metal conduit connectors did well, accessing through the fill hole to set the nut on the inside.

I probably could have set the pipe tap directly in the top as easily. It needs top hold enough water to steam for say maybe a half hour, not sure anymore, but there is a lot of water needed and a lot of heat to boil it.

I have been thinking about building a steam box. I figured I would pick up a couple stainless TIG welding electrodes at the local welding shop and bend them into a serpentine shape with about a half inch gap between them that would fit in the bottom of a 5 gallon paint bucket. Make some spacers out of plexiglass so the two electrodes are spaced away from each other and held up off of the bottom of the bucket.

Connect each electrode to one side of an old line cord. Fill the bucket with enough water to cover the electrodes by an inch or so, snap the top on use the spout for getting the steam out of , and plug the thing in. Adding a bit of salt or Cherry Wood For Turning Jacket baking soda may make it boil up a bit faster. Just don't touch the water while it is running. Sign up to join this community. The best answers are voted up and rise to the top. Stack Overflow for Teams — Collaborate and share knowledge with a private group.

Create a free Team What is Teams? Learn more. Best way to create a simple and economic steam machine for steaming wood? Ask Question. Asked 6 years, 9 months ago. Active 5 years, 7 months ago. Viewed 4k times. I want to build a simple steam machine for steaming wood to bend.

Has anyone built something like this before? Would anyone know a way of building a simple and cheap steam making machine? Improve this question. MeltingDog MeltingDog 2 2 gold badges 6 6 silver badges 14 14 bronze badges. PVC pipe would wither with the heat used for this set up Add a comment. Active Oldest Votes. Improve this answer. Jack Jack The brittleness of highly resinous tropical exotics make them unsuitable for bending.

Regardless of the species you use, careful board selection increases chances of successful bends. Choose straight-grained lumber without knots or other defects and avoid decay even slight spalting. The greater the run-off angle, the more likely the piece will break when bent.

Splitting wood from a larger straight-grained billet guarantees straight, parallel grain but is not always practical. Straight stock runs through a planer or jointer easier than bent pieces, so do as much sawing, surfacing, or shaping as possible before bending. Surface irregularities can cause splintering, so remove rough saw marks. Holes or mortises distort or they cause the part to collapse or split; perform these operations after bending.

Leave extra length at both ends for trimming. Where a bend is near the end of the part, extra length also provides the leverage needed to anchor the bend. Cut stock for parts requiring tight bends so the annual rings lay flatwise against the surface of the bending form [ Drawing delow ]. For mild bends, grain orientation is less important. Steaming takes about one hour per inch of workpiece thickness and parts must stay on the bending form for one hour, so unless you Woodworking Sites For Beginners Queen make more than one form, the steam box only has to accommodate one part at a time.

For efficient use of the steam boiler [ Sources ], a steam box should be only large enough to hold the part blanks with room all around for good circulation. For tight bends on thick parts, increase box size to accommodate resteaming a partially bent piece. The steam box shown in [ Drawing below ] holds two leg blanks for the desk shown above and accommodates resteaming of a partially bent leg.

Make bending forms from particleboard or plywood laminated to a thickness equal to the width of the bending blank. Bending a workpiece puts considerable stress on the form, so when in doubt, more form width beats less every time.

Bent parts retain most of their shape after cooling but to minimize springback, must be held to a form until completely dry. The forms shown [ Drawing below ] are for the desk, shown in photo above.

We made six drying forms to accommodate four leg blanks plus two extras. Securely clamp the bending form to a sturdy workbench. Have all clamps handy. Bending should be accomplished within five minutes after removing the blank from the steam box so you may want to rehearse your procedure. Fire up the boiler.

When steam steadily flows out of the drain hole, slide your blank into the steam box. Steam blanks for one hour per inch of thickness regardless of the width. Remove the part from the steam box and bend it [ Photos below ]. Working quickly, position the steamed blank between the anchor block and the end block on the tension strap assembly. Clamp the blank to the bending form and bending arm, applying clamps both vertically and horizontally.

Begin to bend the blank around the form. Thick parts, such as the legs on the desk, require significant force so put your body into the bend or enlist a helper. Thick parts, such as the legs on the desk, require significant forcea so put your body into the bend or enlist a helper.

Thick parts may not bend in one operation. When you feel too much resistance, remove the part from the form and re-steam it for 15 minutes. As the bend nears completion, remove the bending arm clamps interfering with the bend. Then draw the free end against the form with a one-handed bar clamp.

Clamp the straight portion of the leg to the form and then add clamps along the curved section. Allow the part to cool for one hour and then quickly transfer it to a drying form. Clamp multiple thin strips at the bend to prevent surface splintering. Leave the part on the form for one week.

Safety note! Steam scalds skin on contact. Opening the steam box releases a cloud of steam, so keep your face and any other bare skin away.



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