hi,
i am planning to make a low - cost diy etching tank out of a small rectagular acquarium (large enough for hobbyist size pcb's).
my dad has an old 12v air pump used for car tires. i think the pressure of that would be enough to bubble the solution for the pcb.
here is the setup:
the problem that i am now facing is heating the solution.
i would also place a diy temp controller depending on the heating element that will be placed.
i am planning to make a low - cost diy etching tank out of a small rectagular acquarium (large enough for hobbyist size pcb's).
my dad has an old 12v air pump used for car tires. i think the pressure of that would be enough to bubble the solution for the pcb.
here is the setup:
- the acquarium would contain the ferric choloride mixture
- i would lay down pvc tubings with holes below the acquarium. this is where air would come out to agitate the liquid. of course the pump would stay outside the acquarium
- there would be more than 1 pvc tubings below. these would be linked to each other using elbow joints and t-joints
the problem that i am now facing is heating the solution.
- how can i continuously heat it safely? acquarium glass is simply an ordinary glass which will break due to too much heat.
- how much heat would be required to heat up the whole solution?
i would also place a diy temp controller depending on the heating element that will be placed.