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Welcome to Weather-Above

Printed circuit board small etching tank

I used a Clear plastic container with a sealed led, I brought this from Wilko size 1.5 L {barcode number < 0317 2544>

5 mm sheet scrap plastic (the plastic used was from an old sign that had sticky letters stuck to it)

1x Plastic Airline Tube Air Tubing Connectors (approximately £0.99)

1x Plastic Container (approximately £2.99)

1x fish tank air curtain {approximately £1.99)

1 x fish tank air pump (available at pet stores approximately £6.00)

1 Meter of plastic silicon air pump piping (approximately £1.00)

1 x plastic aquarium Tank One Way Check Valves (available at pet stores approximately £2.00)

1 x Plastic fish tank air regulator (available from pet stores approximately £0.99)

2 x Small cable ties and 2x Large cable ties

1 pack of plastic bag clips there are 3 in a packet

(I purchased these from Aldi food shop)

You need to remove the inner plastic rods, I used these to make the frame to hold a circuit board in place during etching, and a piece of plastic going across the bottom which stiffens the frame,the top piece of plastic moves up-and-down on the plastic rods this forms the lid.

Fasten two of the small cable ties to the rods,fasten them as tight as you can so they do not slipdown on their own ,cut a small piece of the large cable tie and use hot melt glue to fasten to the small cable ties, this should move up and down so you can use different sized boards in the tank.

First you need to cut a slit in the top of the lid, make this to your maximum size board,use a drill to make two holes . Use a fret saw to cut along to form a slit, because the plastic is very brittle take care in this process,( if you do split the plastic lid continue and mount a piece of plastic with a slit previously cut ,glue this over the top.)

Drill a small hole for the air pipe which will connect to the air curtain, drill a second larger whole I use this to put a thermometer in to keep an eye on the etching liquid temperature, use a rubber grommet to stop it from slipping into the tank, it can be kept in place all the time

Air pump

Air curtain

One Way Check Valves

Tubing Connectors

Tools used

Stanley knife

Hand drill

1x11 mm Drill bit

1x 6 mm Dril lbit

1 fret saw