Etching Tank Heating – Update

I got a few questions about my etching tank, so I decided to take some pictures:
Etshoek

The etching tank is build from 2 ice-cream boxes:
etsbak

The bottom box is filled with water, so the etching fluid heats “au bain marie”.
etsbak

To keep the etching fluid in movement I made a stirring machine from an old walk-man and a handyvac.
roermachine
roermachine

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