Tiny Etching Tank - Portable engraving machine

Here a cheap and compact etching tank with small dimensions, very easy to use and to tidy up.

Tank dimensions : 246 x 213 x 31 mm / 9.6" x 8.3" x 1.2"
Total cost without acrylic glue: 26 $

Made to contain 1L ( 33 fl oz ) of chemical products, like ferric chloride or hydrochloric acid, also it includes a temperature sensor.

Comes with an easy holder system based on "lever" lego pieces, you can etch many projects in the same time, pcb boards, brass pieces and other metals...

To realize this project, please use the title of each piece included in the below B.O.M on Ebay's website, the pieces are generic.

Important : Never exceed 50° celsius with the ferric chloride.
Make sure to protect the temperature sensor with a varnish.

Enjoy !

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B.O.M :
- Bubbles wall tube 7'' for aquarium / 1.8 $
- LCD Display digital thermometer for aquarium ( 47 x 28 x 14mm ) / 1.2 $
- Supe