Homebrew PCBs

hi,


I'm going to buy 5mm Lexan to make the tank, it seems the least prone to  
shattering and i hope to me able to machine it without pulling my hair out.
Please let me know if Lexan is unsuitable for CuCl, it takes up water but  
it is only the enclosure so...
The same supplier doesn't have PTFE but i'm going to get HDPE for  
"temporary" bearings.


For the sprayer itself i have found some 50mm inner dia, 3mm wall PVC  
piping.
It is rather large diameter but i hope to keep RPM low this way. I have  
found several lower diameter pipes i could try later.

I will try different ways of making "nozzles", and i also want to work out  
in some way which total "hole" size (or number of smaller ones) the  
sprayer can drive.

ST