Homebrew PCBs

>Much of what you need has already been worked-out, and worked  
>with.........
>
>How about this bit of detail on a fellows working etch system ????

     Yes, but, cost to build? Space required? Possible failure 
considerations? (doesn't he mention having ferric chloride spraying 
around the garage in one particular disaster?)

     It does look great, and I'd be working more on etching brass sheet 
(non-PCB) like he is, but a lot of us here are probably thinking more 
along the lines of "what's already laying around and twenty bucks for 
what's not"

     Regarding the floating & flow discussion, you guys reminded me of 
something (photography) related I read a while back - a guy suggested 
putting a vibrator in the tank. He was using it in the corner of a paper 
developer tray as his primary agitation and claimed that it, a small 
"egg" type vibrator, provided good agitation and even development. (?) 
Personally, I just rock the paper tray.

     Makes me think though, if I use the "floating" (horizontal) 
configuration in the etch tank with a vibrator moving the etchant, and 
helping to agitate and move the heavier etch products away from the 
material, that might solve one of my current cheapo-engineering problems. 
Then the question is whether it would do the same in a vertical 
configuration, as I need to accomplish two-sided etching. hmmm. =8/ 

     -Gary