I use a Cooler, Holds 12L, I fill it with 8L. I use a 150 Watt fully submersible heater on the bottom of the tank, resting on a piece of sealed PVC filled with rocks, with two -re drilled bubble walls on either side. I'm in the process of creating holders from - plastic light cover grid , As it is right now, I generally loose my board in the tank and have to go fishing. Looks like this, only red, cost about $13 at Target, (i use 1 for mask stripper, and 1 for etch) http://makeashorterlink.com/?D14722DF7 JT http://www.soundclick.com/jtsound ----- Original Message ----- From: "Phil" <phil1960us@...> To: <Homebrew_PCBs@yahoogroups.com> Sent: Saturday, April 10, 2004 2:49 PM Subject: [Homebrew_PCBs] Re: ETCH TANK'S [COST EFFTIVE] > oops, sorry about the URL - here it is again. > <http://www.web-tronics.com/lowcosetsysw.html> > > --- In Homebrew_PCBs@yahoogroups.com, "Phil" <phil1960us@y...> wrote: > > That's not a bad solution at all. What's the capacity of the tank > > (both in terms of etchant and size of PCB)? I couldn't find > anything > > that held 1 L (or quart), would etch a 6"X6" board and was at least > > 8" deep (to hold the tank heater). They usually held 2 or 4 quarts > > and I didn't want to have that much etchant at a time. > > > > For me, that forced the inside dimensions of the liquid volume to > be > > 8x7x1.25. The heater and air tube displaces enough to take it > under > > a liter. > > > > By the way, Circuit Specialists has a kit that looks good for $40. > > It includes the tank, heater and air pump. http://www.web- > > tronics.com/lowcosetsysw.html If I were to do it over, I'd > probably > > buy it instead of make my own. I spent about $30 on mine and took > a > > few hours to do it. I dont believe their 4 minute etch time claim > > though... > > > > > > --- In Homebrew_PCBs@yahoogroups.com, steve muirfield > > <smuifield@y...> wrote: > > > HI all > > > ETCH TANK'S > > > I have used corn flaks containers from the hard ware store these > > have a > > > sealed lid to keep continence dry made of white polythene and are > > made by tupper ware they make > > > good vertical tanks for etching and developing > > > AIR AGITATION > > > A fish tank air pump feeding a plastic pipe with small holes > > drilled > > > in it for air agitation > > > As the fish tank air blocks quickly get blocked up > > > PCB HOLDERS > > > plastic netting is easy cut with seisers and folded in half will > > make a > > > good support for dipping Bord's in the etch Barth if you weave > > plastic > > > rod's[large plastic knitting needles] in the plastic netting you > > have > > > support Handel's to lift in and out of tank. > > > TANK HEATING > > > fish tank Emerson heater to keep tempter constant most have > > adjustable thermostat for temptcher control > > > > > > > > > Jest my two pence worth > > > Captin vidio > > > Fist post to grope been reading for a while > > > > > > > > > > > > > > > > > > > > > > > > --------------------------------- > > > Yahoo! Messenger - Communicate instantly..."Ping" your friends > > today! Download Messenger Now > > > > > > [Non-text portions of this message have been removed] > > > > > Be sure to visit the group home and check for new Bookmarks and files: > http://groups.yahoo.com/group/Homebrew_PCBs > Yahoo! Groups Links > > > > >
Message
Re: [Homebrew_PCBs] Re: ETCH TANK'S [COST EFFTIVE]
2004-04-10 by Jeremy Taylor
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