>Well, if stainless is no good in HCl,
>which Materials would be good for constructing
>a PCB holder for a vertical etch tank?
>
>
>I think carbon reinforced tubes are very strong. (from rc model supply)
>Does the HCl attack the carbon fibers? I think it should not be
>a problem with epoxy resin (as pcbs are also this material).
>
>
>How to construct a holder?
>It should allow for etching on both sides and the full surface (no clamps
>or such stuff)
>
>
>Any hints appreciated.
>
>thanks
>
>Stefan
Hi Stefan
I created a little "fork" for my through plating station for the same
purpose and I think this could be easily used for etching too. Ok, a
very small part (actually 3 points each ~5 mm x 1mm) of the PCB would
be covered at one of the borders of the PCB.
By putting a "slider" onto the pronges you can have a tight fixature
of the PCB that easily can be aplied and removed. The fork does of
course not have to be made of stainless steel (as I did in my station)
but round plastic profiles should work well too. The trick here is
definately the slider which will compensate quite a bit the otherwise
bending nature of plastic material.
Markus