Arch Drawing Jig / Gabarit pour tracer des arcs

Pour réaliser un gabarit à tracer des arcs de différents angles, coupez une entaille à l’extrémité d’une mince languette de bois.

To make a jig to trace different angle arches, make a kerf cut at either end of a thin wooden strip.

Arch Drawing Jig

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Glissez une corde nouée à chaque extrémité sans toutefois la tendre.

Slip a knotted string at either end without binding it.

Arch Drawing Jig

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Percez un petit trou au travers du centre de la languette.

Drill a small through hole in the middle of the strip.

Arch Drawing Jig

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Ensuite faites les entailles à un pouce d’intervalle dans un tasseau d’environ 3/4″ par 1″.

Then make saw kerfs one inch apart in an approximately 3/4″ by 1″ stick.

Arch Drawing Jig

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À une extrémité percez et enfoncez un petit clou étêté.

At one end, drill and drive a small clipped-off nail.

Arch Drawing Jig

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Insérez la languette sur le clou et tendez la corde jusqu’à l’angle désiré, bloquez la corde dans l’entaille appropriée et tracez l’arc.

Slip the strip on the nail and bind the string to the desired angle, lock the string in the appropriate saw kerf and trace the arch.

Arch Drawing Jig

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Arch Drawing Jig

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Plus de languettes disponibles, plus de possibilités d’angles et de longueurs d’arcs.

The more available strips, the more arch angle and length possibilities.

Arch Drawing Jig

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Pas trop compliqué, et fort efficace !

Not so complicated, and very effective !

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Bon bricolage !

Happy Woodworking !

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6 Responses to Arch Drawing Jig / Gabarit pour tracer des arcs

  1. Morgan says:

    So funny, I just build and used this for the legs on a table. Like your notches, that is an improvement.

  2. Serge,

    I like your drawing crossbow!

    Chris

    • Thanks, Chris. You must have couple of tricks of your own to draw curves too !

      Best,

      • Chris Wong says:

        Serge,

        I have a drawing bow with an adjustable strap that holds the curve (a shopmade version of what Lee Valley sells). However, one issue is holding it in place while I trace the curve. The “stock” of your bow would allow it to be easily clamped.

        One thing that I don’t particularly like about your version is how the notches allow for only incremental adjustments. I might make my version with a sliding adjuster, like a bolt in a T-track.

        Chris

        • Salut Chris,

          I also made one similar to Lee Valley’s model and I came to the same conclusion as you did. Last week I sent a tip about the T-track sliding adjuster !! 😉

          Best,

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