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Anyone with PCB design experience?

dullard

Elite Member
I have one quick question. I don't know if anyone here can answer it or not.

The company I work for is developing a machine and it needs to be smaller/cheaper/faster to produce. A PCB with our electronics instead of hand wiring appeared to be the solution.

We hired a local company to make the schematic and produce a handful of boards for us to test. We clearly stated the reasons: smaller, cheaper, and faster. We were assured that they can meet those goals. I gave them a hand drawn schematic and even a fully functioning hand-wired machine to use.

After an overly long process with many errors on their part in getting the wires to the right places, they finally sent us a final schematic in OrCAD format (.max extension on the filename). I downloaded a free OrCAD demo to view it.

The thing is massive. It is nearly 50% larger than the size of our smallest hand wired machine. I wrote an email back again stressing that PCB size is one of our 3 main goals (the met the other two). They wrote back stating that it is impossible to get a smaller PCB.

My question: is anyone here with PCB experience willing to take 5 minutes to say if it is/isn't possible to make it smaller? If so, thanks, and I'll email you the schematic. It's mostly connecting terminals together, a few resistors, a few fuses, and eight I/O modules.
 
I'd like to see it, but i've got to run right away..

Does it use considerable power or not much? You may be able to use some SMT if you don't already. etc.

 
Originally posted by: Colt45
I'd like to see it, but i've got to run right away..

Does it use considerable power or not much? You may be able to use some SMT if you don't already. etc.
PM me with an email address if you want me to send it to you. I can wait a day or so.

There are a lot of different signals on it. Most are mV/mA signals. A few traces of each of these: 5 VDC ~20 mA, 120 VAC ~0.1 A, and 24 VDC ~0.4 A.
 
I use Autocad, not sure if it imports OrCad or not. I'll PM you my email and try if you like. Instead of etching our boards, we cut away the unused copper on a mahine made by LPKF.
 
BarbeQueGuy, I can send you the file too if you want (just sent it to Demon-Xanth). I'm not looking for any effort on any of your parts. Just confirmation that it PROBABLY is or PROBABLY is not as compact as possible.
 
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