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Calculated kerfs – FineWoodworking


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There are myriad methods to bend wooden–steam-bending, bent lamination, hot-pipe bending–however one methodology that doesn’t get very a lot consideration is kerf bending. Kerf bending is a way the place you take away wooden to permit the outer floor of the wooden to bend extra simply into the form you need. Most frequently, that is achieved by reducing sawkerfs or slits into a chunk of stable wooden at a given spacing and depth, bending the piece and holding all of it along with veneers or splines.

We coated the method in 2013 when David Haig wrote Curved Panels for Furnishings in situation #231. The quilt of situation #292 options Philip Morley’s wall cupboard with kerf-bent sides. Each David and Philip are unbelievable woodworkers nevertheless it appears as if they each shoot from the hip and depend on their hard-won expertise and ability in the case of the spacing and depth of the kerfs. Properly, a few of us hobbyists don’t have the expertise or the ability they’ve, and want extra info in the case of our tasks.

In step the coders and engineers! Hooray for coders and engineers!

For those who’re on the lookout for particular dimensions to information you thru a kerfed bend, try blocklayer.com/kerf-spacing. On the web page, you’ll be able to enter the radius of your curve, the sweep angle, blade width, inventory thickness, and the minimal thickness (how a lot meat you need to go away on the bone) after reducing. The web site leans metric, however fortunately they’ve ported the calculators over to imperial for individuals who are followers of the fraction.

Now, remember that each Haig’s and Morley’s tasks featured tapered curves, which this calculator gained’t output, however I’m keen to guess that it’ll get you nearer than guessing!

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