Author Topic: Look at this schematic drafting machine!  (Read 11507 times)

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Offline kometTopic starter

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Look at this schematic drafting machine!
« on: June 25, 2014, 06:59:37 pm »
Tired of drawing schematics with a quill? Switch to the latest technology! The Diagrammer!

 

Offline FrankenPC

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Re: Look at this schematic drafting machine!
« Reply #1 on: June 25, 2014, 07:43:52 pm »
That's amazing.  I would love to see a teardown of that machine.
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Offline Mr.B

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Re: Look at this schematic drafting machine!
« Reply #2 on: June 25, 2014, 08:02:11 pm »
i wonder how much it cost back in 1970.
Then compare that with todays cost of a cheap PC, a cheap printer and a license for Eagle...
Would be interesting.
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Offline M4trix

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Re: Look at this schematic drafting machine!
« Reply #3 on: June 25, 2014, 08:15:45 pm »
Where can I download this Diagrammer ?  ;D
 

Offline lapm

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Re: Look at this schematic drafting machine!
« Reply #4 on: June 25, 2014, 08:25:12 pm »
Hmm robotic arm with slides to exposure film... Just one thing... How was it using that monster machine faster then drawing it by hand?

Took longer to place transistor in drawing machine then fellow with pen and paper..
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Offline XOIIO

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Re: Look at this schematic drafting machine!
« Reply #5 on: June 25, 2014, 08:28:10 pm »
Line-O-Tyyyyyype!

Offline echen1024

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Re: Look at this schematic drafting machine!
« Reply #6 on: June 25, 2014, 08:48:58 pm »
Hmm robotic arm with slides to exposure film... Just one thing... How was it using that monster machine faster then drawing it by hand?

Took longer to place transistor in drawing machine then fellow with pen and paper..

more accurate, looks nicer, etc
I'm not saying we should kill all stupid people. I'm just saying that we should remove all product safety labels and let natural selection do its work.

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Offline Bored@Work

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Re: Look at this schematic drafting machine!
« Reply #7 on: June 25, 2014, 09:57:12 pm »
The machine looks more like it was designed by a typesetting company for printers, not for companies wishing to streamline their drafting department. But then someone somehow thought it might be a good idea to market the machine to companies with drafting departments.

I don't remember if there was a particular shortage of draughtsmen in 1970. I'd like to know what the machine did cost and how many they sold.
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Online Andy Watson

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Re: Look at this schematic drafting machine!
« Reply #8 on: June 25, 2014, 10:06:35 pm »
Wow!
I too would be like to know how much it cost, and would it really have made an overall "cost reduction" when you factor-in operator time, consumables  AND depreciation of the machine? 
What happened if a mistake was made? Was it necessary to start again? I didn't see any erase facility. And why record on to "special double exposure film", surely paper tape, was readily available at the time.
 

Offline M4trix

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Re: Look at this schematic drafting machine!
« Reply #9 on: June 25, 2014, 10:14:32 pm »

What happened if a mistake was made? Was it necessary to start again? I didn't see any erase facility.

You get fired for wasting the exposure film.  ;D ;)
 

Offline kometTopic starter

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Re: Look at this schematic drafting machine!
« Reply #10 on: June 25, 2014, 10:24:24 pm »
I can only assume there is good reason why nobody has ever heard of this thing. But hey! It's MIL SPEC! He said it twice!
 

Offline zapta

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Re: Look at this schematic drafting machine!
« Reply #11 on: June 25, 2014, 11:08:34 pm »
It's more user friendly than eagle. ;-)
 

Offline kolonelkadat

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Re: Look at this schematic drafting machine!
« Reply #12 on: June 25, 2014, 11:21:23 pm »
oh man! i want that keyboard.
 

Offline T3sl4co1l

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Re: Look at this schematic drafting machine!
« Reply #13 on: June 26, 2014, 12:55:46 am »
Absolutely magnificent.  And I can only imagine the multi-million dollar price tag!

More on Mergenthaler (see also the related videos):
http://youtu.be/XvwNKpDUkiE

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Offline Stonent

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Re: Look at this schematic drafting machine!
« Reply #14 on: June 26, 2014, 03:14:19 am »
I saw some funky-assed transistors in there...
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Offline Dago

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Re: Look at this schematic drafting machine!
« Reply #15 on: June 26, 2014, 06:06:25 am »
It's more user friendly than eagle. ;-)

Probably ;D
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Offline AndyC_772

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Re: Look at this schematic drafting machine!
« Reply #16 on: June 26, 2014, 07:18:04 am »
Never again will I complain about the time it takes for Orcad to load.
 
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Offline T3sl4co1l

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Re: Look at this schematic drafting machine!
« Reply #17 on: June 26, 2014, 07:28:55 am »
I saw some funky-assed transistors in there...

Multiple collectors or emitters and other monolithic structures were kinda-sorta-available back in the day, but like the UJT, died out quickly as the mainstream kinds of parts dominated.  Could also be some of those symbols were intended for semiconductor manufacturers (datasheets, internal documents?).

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Offline dexters_lab

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Re: Look at this schematic drafting machine!
« Reply #18 on: June 26, 2014, 07:31:22 am »
nice video, thanks for sharing!

it's like visio 1970s style

Offline HighVoltage

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Re: Look at this schematic drafting machine!
« Reply #19 on: June 26, 2014, 04:12:05 pm »
wow, I never heard of such a machine.
Thanks for the video
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Offline echen1024

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Re: Look at this schematic drafting machine!
« Reply #20 on: June 26, 2014, 04:37:59 pm »
That looks like a seriously fun machine though. No extra DRC, or layers of menus. Just position and expose!
I'm not saying we should kill all stupid people. I'm just saying that we should remove all product safety labels and let natural selection do its work.

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Offline Bored@Work

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Re: Look at this schematic drafting machine!
« Reply #21 on: June 26, 2014, 04:56:49 pm »
That looks like a seriously fun machine though. No extra DRC, or layers of menus. Just position and expose!
And no undo button.
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Offline AndyC_772

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Re: Look at this schematic drafting machine!
« Reply #22 on: June 26, 2014, 04:59:09 pm »
Just like Allegro not all that many years ago. And I bet it crashes a lot less often.

Offline SeanB

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Re: Look at this schematic drafting machine!
« Reply #23 on: June 26, 2014, 06:12:10 pm »
Nice little variant on the photosetter. You could do some nice DTP work with those, as they were the fastest method in the days before computer DTP and laser printers to generate printer ready pages. Beat the Linotype and hot metal machines in terms of speed and quality of output, and was a lot faster to set up a page and automatically align the text columns and flow automatically around pictures. Then you print onto a photosensitive plate direct and develop and then put on the offset printer to run off the copies.

Large, could be cranky and definitely had no undo after you pressed line feed which wrote to the film plate.

Printing is becoming a lost art, though you can pick up a used offset press quite cheaply, but to get it running well you will spend a lot. Wonder if Dave will ever get one for teardown, they actually do have a lot of electronics inside those covers, even if the user interface consists of a few LED's and switches, and a great big handle to select each operation step. The smaller ones do fit inside a lift, and only weigh 300kg. The big ones come in a few containers along with a need for a 10 ton forklift to move the parts. Some are totally digital, think a colour laser but using cans of ink, and being able to change jobs in under 5 minutes, then 3000 pages per hour in 4 colour with a UV overvarnish. All at the touch of a soft button on a screen. POA and any sportscar is way cheaper.
 

Offline TerraHertz

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Re: Look at this schematic drafting machine!
« Reply #24 on: June 27, 2014, 10:45:14 am »
My God, it's write-only. How often would anyone be able to complete a complex schematic without ever making a single mistake?  "Four times faster than manual drafting" they say. I seriously, seriously doubt that, given that every time you make a mistake you apparently have to start all over again. Because, film.

I bet Mergenthaler felt remarkably cheesed off and insolvent after they developed that, juuuust before microprocessors appeared. But there were already minicomputers, so you'd think they might have had an inkling (ha ha) that maybe fully optical-mechanical wasn't the way to go.

Fascinating video.
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