Homebrew PCBs

I just ordered a second batch of DuPont Riston MM540 (38 micron):

http://www.ebay.com/itm/170869878820

from eBay seller gaminn:

http://myworld.ebay.com/gaminn/

I got a roll 318mm wide and 2 metres long for $17 including shipping
from the Czech Republic.  The price may have gone up and it seems he has
no more available.  Hopefully he will have more in the future.

This eBay seller in Sweden:

http://myworld.ebay.com/karass/

has 15 micron Riston FX515, again for an inexpensive price including
shipping.

The MM540 worked well for me.  An advantage of buying this, compared to
some unidentified photoresist, is that there is full documentation.  The
main page is:

http://www2.dupont.com/Imaging_Materials/en_US/products/dryfilmPhotoresist/index.html

This page:

http://www2.dupont.com/Imaging_Materials/en_US/tech_info/datasheets/index.html

has the Riston_GeneralProcessingGuide.pdf and datasheets for specific
types of Riston.

I may try the 15 micron material in the future.

 - Robin          http://www.firstpr.com.au/pcb-diy/