I Built a Jig to Cut Large a Ellipse or a Circle / DIY Woodworking

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I built a jig that can cut a large ellipse or a circle up to 32" in major axis or radius. The concept of the jig similar to other ellipse jib but with a couple of features that help it cut large diameters with stability. I find it useful for three major purposes - to cut an ellipse, to cut elliptical or circular arcs for templates and to cut a circle.
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#ellipsejig
#circlejig
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Опубликовано:

30 сен 2024

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Комментарии : 28

@G3rain1 17 дней назад

How do you adjust the eccentricity of the ellipse?

@KiranBhatWoodworking 15 дней назад

By adjusting the travel along each axis. It has some flexibility but not infinitely adjustable.

@mroozendaal 3 месяца назад

Hi. I would like to cut an over with a major axis of about 55 by 30. Do you think this is possible with your jig. If not do you know what I need to change to this jig for this?

@KiranBhatWoodworking 3 месяца назад

You can make the base and the arm larger and should be able to approximately get there. I would set the point and adjust the router arm for major and minor axis than doing the math.

3 года назад

Hello my friend, It's a great idea. It's now easy to cut circles and elliptical shapes with the router. A great jig. Congratulations. Thank you for sharing. See you. Big greetings. I wish you a healthy and happy weekend. Best regards. Mehmet....

@KiranBhatWoodworking 3 года назад

Thank you so much for the kind words! It was essential for the projects that I'm working on! Now I have more flexibility to build things. You have a great weekend as well!

@karimnasr7568 Год назад

Hi how are you great video! I am trying to cut an oval with 180x90 dimensions. Do you know how to set the jig for that?

@KiranBhatWoodworking Год назад

You setup the jig in the middle and move the router to the minor/major axis points and lock the adjust nuts. You’ll have to do a couple of adjustments but you’ll get it eventually!

@jeffoldham668 Год назад

will this cut a 8x10 oval frame

@KiranBhatWoodworking Год назад

If you make the radius larger, it should. The principle of cutting oval is the same.

@tonyhowarth1833 Год назад

Kiran, have you designed a jig yo cut an ellipse on the bandsaw?

@KiranBhatWoodworking Год назад

I don’t have a jig to cut ellipse on the band saw. I use the router to make a shallow pass, cut of the excess on band saw and clean up with flush trim bit.

@tonyhowarth1833 Год назад

@@KiranBhatWoodworking thx. Looks like that’s the accepted best practice!! Appreciate the reply

@paulhawvermale1606 3 года назад

How do you keep the two nuts from loosening, that hold small blocks that slide?

@KiranBhatWoodworking 3 года назад

It’s a friction fit with holes drilled with a forstner bit. If you feel your fit is too loose you could epoxy it but add an additional washer between the nut and the arm. You should already have a washer between the arm and the wingnut.

@basedcase 2 года назад

Nice, I mean a jig from unistrut and a couple trolleys. I needed a large possible difference between major and minor axis.

@KiranBhatWoodworking 2 года назад

This was really cheap to make and you can extend it quite a bit by simply using a longer board. I think it can get close to 1:2 ratio between minor and major axis. Also you can design more travel for the base that allows the most eccentricity.

@basedcase 2 года назад

@@KiranBhatWoodworking unfortunately I do not have a table saw.

@pulpo439 3 года назад

¡¡¡Caramba... Sabes hacer un óvalo!!!

@KiranBhatWoodworking 3 года назад

Thanks.

@paulhawvermale1606 3 года назад

What keeps your two blocks from sliding in the slot? Mine loosen about half way around.

@KiranBhatWoodworking 3 года назад

The size of of the base define how much your keys slide. If you select a small base but large apogee, the keys slide out. Ideally we should build two or through bases for different size ovals. The recessed slot at the top of the arm keeps the washer fit perfectly and stops from loosening half way through. If your keys are becoming loose, epoxying them should help.

@KiranBhatWoodworking 3 года назад

Please send me a photo or video of what your experiencing and I can help troubleshoot. I have gone through a few iterations before landing on recessed slot design so have a few ideas to fix some problems I faced.

@paulhawvermale1606 3 года назад

@@KiranBhatWoodworking I do not have a recessed slot. If I tighten the wing nuts to keep in position, then it was too tight to move the router. I'll try a recessed slot, thanks.

@pulpo439 3 года назад

Mareas mucho con la cámara.

@KiranBhatWoodworking 3 года назад

Are you talking about the camera movements? Google is not able to translate in a meaningful way.