Whilst I haven't tried it myself, this method of using sign writes vinyl has been mentioned recently on Twitter http://en.electroni-city.com/
Looks like a nice neat alternative to acetate and light box.
I've also got a UV box, so if Graeme's is not available, let me know. I have also built a small bubble-etching tank.
On Sunday, September 30, 2012 1:17:54 AM UTC+1, Graeme wrote:
Hi David, I've also made a few guitar effects using plans from the MadBeans site and a friend has replaced his whole pedalboard with them.
I design using PCBExpress ( unless doing guitar pedals which I download) because it's free and does what I need, then print onto acetate and transfer to UV sensitive copper clad board using a UV light box. Timings and dilutions are critical and I still mess up once in a while.
Happy to bring the light box along anytime anyone needs to use it.