Re: [CAD_CAM_EDM_DRO] PC board making

If you have a laser printer, try the "Press-n-Peel" Blue stuff.

http://www.techniks.com/press-n-peel.html

I much prefer it to photo etching. That's what I use for boards I can't
mechanically etch on my mill or that I don't send out to a board shop.( so I
don't use it all that much anymore )

Another good development bulb you can use is a "Photo Flood" available at
any photographics supply store.

later,
Larry E.