Cutting a wooden hoop

How to make a wooden hoop

Para alguno de nuestros proyectos de bricolaje con madera podemos necesitar hacer un aro, algo que puede resultar bastante complicado si lo intentamos cortar a pulso con una sierra de marquetería o con una sierra de vaivén. Pero hacer un aro de madera utilizando la sierra de calar de mesa y la guía para cortar círculos resulta bastante sencillo. La única parte un poco complicada es el inicio del corte en el interior del círculo. Aunque tampoco es algo difícil de hacer si tenemos un taladro (mejor un taladro de columna) y un formón estrecho. Entonces, vamos a ver cómo hacer un aro de madera siguiendo las indicaciones que acabo de comentar.

I will begin from a wooden circle that I cut previously when I showed how I made the jig for cutting wood circles on the jigsaw table.

Drill a first hole in the inside of the wooden hoop

In this circle I have to draw a radius. And I mark on that radius the measure of the radius of the inner circle that I want to eliminate to get a hoop. I need a drill bit with a diameter the same as the width of the jigsaw blade I am going to use to cut the inner circle. Now on the drill press, I put the wooden circle under the drill bit in a way that the outer edge of the drill bit is tangent to the mark. And I have to drill a first hole.

Drill another hole tangent to the inside of the hoop.

The problem is that this hole does not allow me to pass the cutting blade in a way that the side of the blade is against the mark that tells the measure of the radius, therefore I have to draw a second radius close to the first one. I have to mark on the new radius the measure of the inner radius of the hoop I want to make and, also with the drill tangent to the mark, I will drill a second hole. Now I just have use a chisel to cut the small wooden protrusion that remains between the two holes, thus joining the tangency points.

We should see the slot of the circle cutting jig.

On the circle cutting jig, I have to place the pivot point at a distance from the slot equal to the diameter of the inner circle I want to cut. And I put the wooden circle on the jig. If all is working okay I then can see the slot of the circle cutting jig through the hole I made,

Put the wood on the circle cutting jig.

and that should allow me to install the blade on the jigsaw table. I only have to pass the cutting blade both through the inside of the hole I made and through the slot of the cutting jig.

Turn the wooden circle to cut out the inside

Now all I have to do is turn on the jigsaw tool and rotate the wooden circle until I have finished making the wooden hoop.

This way, when I remove the inner circle, I have left a fairly well cut outer wooden hoop. I just have to sand a little the wood burr left by the cut and some small imperfections that remain in the area of the beginning and end of the cut. And I already have my wooden hoop.

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