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Groton Size No. 3-Z Pantograph

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toolman_ar

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#1
Today I found a shop full of stuff for sale.

When I asked the guy how much he said... don't know. The shop was his dads and he passed at age 85, 5 years ago. He and his brother are now trying to sell off his equipment.

So my question today is... how much is a Groton 3-Z worth?

There is a cabinet full of faunt for with the machine and cool little collets and other things that go with it.

I want to be fair and not give them a low ball offer, but I also don't have room for the little guy.

Please educate me on Pantographs...

toolman_ar Groton 3V.jpg Groton name badge.jpg Cincinati T&G.jpg
 

toolman_ar

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#2
One more picture... oh and there is a T&G there also... Serial Number 3Z.jpg
 

benmychree

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#3
I doubt that the 3-Z is worth very much, but the fonts go for between $75 and $125 roughly, on e bay, depending what they are so far as rarity. The 3-U is the most common and is desirable because it is smaller and does not take up much space. I think the 3-Z is more of a die sinking machine with much larger capacity and power; I don't think I'd offer more than a few hundred dollars for it.
The cutter grinder is another matter entirely; they were designed for radius work and are desirable; I would advise you to Google the model designation and look at used machinery listings to get an idea about value, bearing in mind that asking prices are one thing and selling (buying) can be quite another.
 

benmychree

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#4
This machine is called the Monoset type or model; I could not remember that when I responded above. I think that they also generate spirals.
 

toolman_ar

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#5
Benmychree,
Thank you for the information!

I like the grinder also, after looking around a bit, they go for big money.

toolman_ar
 

toolman_ar

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#6
IMG_4040.JPG New tool followed me home today.

The book says this has a weight of 1200 lbs. I believe it was much more.

Came with a fair amount of tooling.

toolman_ar
 

benmychree

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#7
Congratulations! I have two 3-U engravers, would like to have one of each thing they made! ---- I'd like to sell one of the two that I have, bought it just for the accessories that came with it.
york@napanet.net
 

toolman_ar

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#8
Benmychree,
I still need to unload all the tooling from my truck.

Lots of cool stuff! Including factory manuals and service book. I will post some pictures.

Maybe you can explain some of the items...

I think this will be a fun new tool. Already dreaming of things to make.

toolman_ar
 

Uglydog

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#9
I've got a 3U without a table and no fonts.
If anyone has duplicates you'd like to sell or trade for??
Please let me know.

Daryl
MN
 

ghostdncr

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#10
The Gortons are very heavy duty machines and as benmychree suggested above, many were used for die sinking and mold making in the pre-CNC era. It can be difficult to wrap your head around the capabilities of these machines as they're quite specialized and (in my experience) the full scope of said capabilities involved a lot of tribal knowledge that may be a bit difficult to tap into nowadays. Just for reference, here's a P1-2 for sale fairly close to me listed for $500. Definitely needs some TLC, but I would've already bought it if I had the floorspace: https://bloomington.craigslist.org/tls/6198793080.html
 

toolman_ar

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#11
I found two videos showing some of the uses.

Making in lays, tracing letters and numbers. Art work that can be made.

If you build it they will come...

Ugly dog, I have 3 fount tables. Let me see what I am going to do with them?

toolman_ar
 

Uglydog

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#12
toolman_ar
Thank you.
But, please note this is not urgent.

Daryl
MN
 

chips&more

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#13
I also have a Gorton pantograph and like said above it does need a slight learning curve, at least for me. Like, if you want a ratio not on the machine, good luck, set aside a good part of your day to get it right. And if you want to trace a PERFECT circle, good luck again, there goes the rest of your day. BUT, would I get rid of the machine with the bad talk I just made, NEVER, it has more capability than I want in my shop. I do a lot of micro machining and the Gorton used as a micro milling machine outdoes any micro mill that I have seen. And the thing engraves too!...Dave
 
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Uglydog

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#14
... the Gorton used as a micro milling machine ...
That's exactly why she is in my shop, and also why I'm not upset there is no letter table. As I'm thinking one from cold rolled with some drilled/taped holes will work well to duplicate small parts.

Daryl
MN
 

Uglydog

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#16
Yes, Thank you.
I had conversations with the seller back when he had two (one with T slots)
The set up on the 3U was different.
He was kind of guessing that maybe it was actually a Deckel.

Daryl
MN
 
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