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Very old Deckel G2 Engraver (Retrofit..)

StefanG

Aluminum
Joined
Dec 3, 2009
Location
Germany, Bavaria
Hello together,

A few weeks ago, a friend of mine offered me to buy an old Deckel G2 Engraver which was lurking around in his garage. He showed me some pictures, whick looked pretty ok to me, only major drawback: The pantograph mechanism got lost (I don't know how you can loose something like that :D )
But, he called a good price (200euros), so I bought it.
My plan is to build a small cnc vertical milling machine out of the remains of the machine (Better that, before they end up in a chinese furnance, to be remolten...)

Some Pictures:

After picking it up, in the car:
http://gtwr.de/DSC00012.jpg
http://gtwr.de/DSC00013.jpg

Moving it down into the basement, worked like a charm:
http://gtwr.de/DSC00014.jpg

After a quick cleanup, I did some measurments, to check the accuracy:
http://gtwr.de/DSC00016.jpg
So far ok, the end of the ways move away a few 1/100mm, I will correct that later by scraping...

The type plate, painted black and then ground down to reveal the brass
http://gtwr.de/DSC00031.jpg
Can someone determine the age of this machine with the help of the serial number? I asked Franz Singer via mail, but he has no documents relating to the Deckel G2

New Paint, mounted on a stand, fitted a 25x5mm Bosch Rexroth ballscrew for the Z-axis
http://gtwr.de/DSC00049.jpg

What do you think? Is it ok, or a sacrilege against every Deckel Machine ever built? :D

greetings
Stefan
 
Hi

I used a polyurethane primer and an acrylic paint, which I used before on my Aciera F3, where it stands up against oil and cutting fluid very well.

greetings
Stefan
 
I see no sacrilege, like you say, better than being melted up as scrap. Are you going to make a traveling head Y axis like an FP1 or add Y motion to the table on the knee area? Looks like a fun project and worth the effort to me....
 
Can someone determine the age of this machine with the help of the serial number? I asked Franz Singer via mail, but he has no documents relating to the Deckel G2
My guess would be late '20s to mid '30s.
1027 was sold to American Optical, New York in 1927.
1092 sold to Hoffman Type & Engraving, Chicago in 1923
New Paint, [ ... ]
What do you think? Is it ok, or a sacrilege against every Deckel Machine ever built?
It is an offense against the Fatherland to paint a Deckel to look like an Alexander!
 
Are you going to make a traveling head Y axis like an FP1 or add Y motion to the table on the knee area?

The Y axis is already integrated in the knee, but the milling head will be adjustable in the Y axis (Manual clamping and moving), to enlarge the area that could be reached.

It is an offense against the Fatherland to paint a Deckel to look like an Alexander!

Hmm, I have never seen a colored picture of an Alexander machine, but atleast here in Germany the grey i have chosen for the machine, is something like a standard or classic for old machines..so, I can live with that :)

greetings
Stefan
 
Stefan,

I realize that the table already has Y axis on the knee, but it looks to me like I would use that as my "movable to enlarge the capacity" situation and use the rather long surface on the top of the casting to attach a headstock on linear bearings and drive the axis off the back of the machine with a ball screw in the center slot. I would think more capacity could be had and a cleaner installation.
 
Hmm, I have never seen a colored picture of an Alexander machine,

894244.jpg


894246.jpg


Apologies that the pictures are from a dealer's site, and I'm not sure I like the slings bearing on the feed handles:angry:


Keith
 
Thanks, Keith, you saved my bacon. Thought someone would prove me wrong and then I would have to go and search.
I used to do that before posting, to make sure, but I don't know it it is my ISP or the Internet in general but lately it can take from 30 seconds to timed out when opening another browser (all virus and spybot checks done).
Cheers,
Arno
 
Ah Brian, now I understand, but I want no linear bearings on this machine, just plain dovetails.

Great color on that Alexander engraver, I like it :)

The last days I moved the machine in place, and machined the bearing flange for the Y axis (Including the mount for the stepper):

http://gtwr.de/DSC00058.jpg

Stefan
 
Stefan,

You are already committing blasphemy chopping up this original Deckel iron... :eek: What's a couple of linear bearings in addition to the ballscrews..... come on, lets be creative! :D

My main thought was increased length of travel covering the whole table surface without having to shift the table on the ways. Looks like using the ways you might only get 100-125mm worth of stroke.
 
Some progress:

The stepper motors, 4A, 3Nm torque, should be enough power for such a small machine
DSC00063.jpg

The spindle head, it uses ER32 collets and is completely belt driven, no noisy gears, the speed reduction can be choosen between 1:1,5 and 1:5, the motor will be a 3 phase motor, 0,25kW
DSC00066.jpg

A MockUp, with the Spindle head attached
DSC00072.jpg

Machining the end of the table on my MadMax Aciera F3, to accept the flanges for the ballscrew.
DSC00073.jpg

The HiWin Ballscrew mounted in the table:
DSC00076.jpg

greetings,
Stefan
 








 
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