Thread: Does This Mechanism Have A Name?

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Knowing that the grandkids were coming for Thanksgiving and that we were likely going to be inside due to the weather, I picked up a piece of walnut from the drying stack and whipped out this little mechanism to maybe occupy a bit of their time, and just maybe make them think about what was involved - relative motion, path defined by the handle, etc, etc. Seems to me that I've seen this diagram before with a name associated, but I can't seem to find it. Thought of a modified Scotch Yoke, but that doesn't seem to be real. Anyway, they thought it was cool for about two minutes, then the electronic games called to them

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That there is one of those whatchamacallit's or a thingamabob.
Or depending on your geographic area you may live in, they might be a nick or a nack...joe

Try this one MrSpears. Two Slider Ellipse Drawing Mechanism

a LOT of cool stuff there too!

Originally Posted by 34_40

Try this one MrSpears. Two Slider Ellipse Drawing Mechanism

a LOT of cool stuff there too!

Yep, it definitely describes an elipse, and that may well be the name of the mechanism.

That mechanism can also draw a horizontal straight line, a vertical straight line or a perfect circle depending on where the 'pen' is attached.

In our neck of the woods something like that is referred to as a furshluginner for a portrazebie.

(Try saying that after a couple of beers!)

Originally Posted by 34_40

Try this one MrSpears. Two Slider Ellipse Drawing Mechanism

a LOT of cool stuff there too!

You're not in my good books at the moment...I wasted an hour on that site!

Using Mike's link name as a starting point, I found another site that calls the device an Elliptic (or Elliptical) Trammel, and also the Trammel of Archimedes. I think that "Elliptical Trammel" is the name I was trying to recall, and I'm thinking that it was an example in a Mechanism's class many moons ago.

I agree with johnboy, that site Mike posted is a place that eats time. I may have some more mechanism models to make....

Originally Posted by johnboy

In our neck of the woods something like that is referred to as a furshluginner for a portrazebie.

(Try saying that after a couple of beers!)

I can't say those words stone cold sober!!!

Originally Posted by johnboy

You're not in my good books at the moment...I wasted an hour on that site!

Easily led astray???

Originally Posted by rspears

Using Mike's link name as a starting point, I found another site that calls the device an Elliptic (or Elliptical) Trammel, and also the Trammel of Archimedes. I think that "Elliptical Trammel" is the name I was trying to recall, and I'm thinking that it was an example in a Mechanism's class many moons ago.

I agree with johnboy, that site Mike posted is a place that eats time. I may have some more mechanism models to make....

I wanted to wise crack about the "Many Moons Ago"... But then I remembered your vehicle operation in reverse is suspect and realized you struggle with looking back!


Just Kidding!! All in good fun!! Just pokin' the bear!