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Originally Posted by ibmkg
jaydee:
Seeing the pic now reveals a flaw though. Since water cannot hit the base 'deep enough'. In other words, in your design copper base plate thickness is 6.35mm. It should be around 2-4mm max. One way would be to 'hollow' up the copper plate then drill and stick up copper wires.
I would also suggest 2.5mm thick cu wire as one can then drill more holes with more 'fins' stuck in. 2.5mm is easy to work with and stiff as well.
I see you have made a groove for o ring? How?
I am thinking of making one similar block with slight modification. How would one cut out plexi in middle?
jaydee, Nicely done...
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The O-ring groove I used my CNC Mill. Same with cutting the lexan center piece. However a simple drill press with a hole saw should be able to make the cut. Even a hand drill and vice with a steady hand.
The O-ring groove was made simply because I needed to take the block apart several times to change the pin array. Otherwise silicon or similar would have been used.