Mystery Jig

[JosieAtSawtooth]

Hello! I'm looking for some help solving a mystery. Can any one tell me what this jig might be used for? It has been sitting in the Sawtooth Shop since before my time and no one has come up with a definitive answer. The top board is removable/ has a changeable position. My thought is that it's for use with a router, but I can't imagine what. I am able to add more pics if necessary. Thanks for your ideas!

- Josie

 

[Charlie]

I certainly can't help because I have several jigs that I have made and I
can't remember what they were used for. Lol.

 

[kserdar]

SWAG - Routing a center profile in panels.
Because of the point in the middle. You need to rotate 180 degrees after doing first side.

 

[Melinapex]

That looks like a jig I made to create a seat shape. The seat faces down and sideways and there is a second part that is guided in the relief cut in the top part. The seat top is slid over the blade and does a pivot where the center of the top part is cut to a V. After each run the top is moved on the pegs to cut the next little bit and so on. It leaves a pommel in the middle. Will see if I can find the video I got it from.... found it "carve a chair seat on the tablesaw with Mario Rodriguez".

 

[HITCH-]

 

[Mike Davis]

Thanks Hitch. That is very interesting.

 

[drw]

If given 50 guesses I would not have come up with what the jig was for. That said, the design is ingenious.

 

[JosieAtSawtooth]

Thank you Hitch and Melinaplex! Wow I am so glad I never cut it up to repurpose the material. What a genius design. I'll have to make some chairs!

 

[bainin]

It would never occur to me to push wood perpendicular to the blade direction. Pretty cool !

b

 

[mkepke]

On the subject of seats produced in this way: interesting video from Mathias Wandel where he concludes it doesn't produce a very comfortable seat. Watch from about 4:55 onwards.

I can't say from personal experience, but I did notice that Mario Rodriguez's hand-carved seats - in the video Hitch posted - use a much flatter butt profile with a much shorter "pommel" than what he produced from the table saw jig. That seems to echo Wandel's assessment.

It still seems to me the table saw jig might be useful for removing the bulk of the waste material, even if there is still significant handwork required to make a comfortable scooped seat.

Other thoughts/opinions?

-Mark

 

[Martin Roper]

All of us is smarter than one of us.

 

[Craptastic]

That's a pretty ingenious jig design. I can see it requiring some cleanup afterword's but so would carving and that to a much greater degree.

 

[JosieAtSawtooth]

On the subject of seats produced in this way: interesting video from Mathias Wandel where he concludes it doesn't produce a very comfortable seat. Watch from about 4:55 onwards.

I can't say from personal experience, but I did notice that Mario Rodriguez's hand-carved seats - in the video Hitch posted - use a much flatter butt profile with a much shorter "pommel" than what he produced from the table saw jig. That seems to echo Wandel's assessment.

It still seems to me the table saw jig might be useful for removing the bulk of the waste material, even if there is still significant handwork required to make a comfortable scooped seat.

Other thoughts/opinions?

-Mark

Thanks for this video! I'm planning on trying out the jig and already have a blank glued up. I'll write in to confirm whether its comfy or not when I've tried it out.