wrote:
Hello,
I have started some simple glass etching, and right now I am simply
using Armour Etch on top of contact paper. I trace a design onto the
contact paper, and then cut out areas out with a razor. It's
rudimentary, but it works. However, the design can only be cut so
finely before I either go insane or the contact paper stops sticking.
Does anyone know of some (DIY) methods of etching a more complex
design? Are there some photo-sensitive etch-resist substances I can
use, similar to the emulsion in screen printing maybe?

I've not tried etching glass but have done printed circuit boards and
copper sheet using a spray on UV sensitive resist such as
http://uk.rs-online.com/web/search/s...ct&R=198965 1
.. You would have to try it to see if it was OK with your etchant. Easy
to use for DIY and you can either buy a developing solution or a mild
solution of caustic soda can be used. Exposure can be done in sunlight
but I bought the UV flourescent lamps and made an exposure unit. Once I
just bought a UV flourescent lamp and fitted it into a handheld stick
light and waved it over the top .

Another option might be some of the methods used for producing PCBs from
laser prints. Try googling "pcb laser print" or
http://www.megauk.com/artwork_aids.php#ART10 . Mega also do this
http://www.megauk.com/quikmask.php .