[Milsurplus] Simple PC board layout tool?

Bill Cromwell wrcromwell at gmail.com
Fri Apr 4 16:17:20 EDT 2014


On 04/04/2014 03:11 PM, hwhall at compuserve.com wrote:
> >From some of the replies I have gotten, I realize I ought to have indicated how complicated is the board I'm working on.
>
> The circuit I'm working on is a one-sided bard and all through-hole components. Five CMOS chips and a dozen or so passive components. Eventually, we'll probably end up making a couple dozen boards but not all at once.
>    
> The circuit is simple enough that I figured if there was an image library of true-scale copy & paste DIP, transisitor, etc., pads that any drawing or image editing cabable program could complete a lands & traces image (e.g., Paint, Photoshop, Powerpoint). Wasn't there an image set like that which referred to the library parts as puppets, or something similar? All my googling finds the high-power software programs that do everything from schematic drawing to layout to 3-D product images & the data files for professional PCB manufacturing machines.
>
> This morning I found some of my old Bishop Graphics transparent pressure sensitive stuff, trace tape and some dry transfer direct resist material that I used a loooong time ago. I guess I could work with that. Maybe I could make a sheet of all the pads & stuff, and have it scanned to make a bitmap file from which I could do copy & paste in my image editing programs.
>
> Wayne
>
>   WB4OGM
>   
>
Hi Wayne,

You might try laying out the pin patterns and fussing with them to get 
the scale right. Say in something akin to paint. Laser print them to 
transparency (when they come out right on plain paper) and iron them 
onto the board. Thats about as simple as it's going to get. I have some 
drafting software (from the DOS days) that layout the pads and traces to 
scale but - well - it's for DOS. For just a few boards I have used the 
etch resist pens and even the XYL's nail polish and hand drawn them.

73,

Bill  KU8H


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