Steve the holes are not that hard to do but you need a tuned driller to do it without messing up with the align
i did each 4 holes at a time.. first the 3/8 than 1/2 than 5/8 than 3/4 with the piece fixed to the driller and just changing the drill bits...
from 12 sets of holes only one i did wrong so i decided to use it as the water input in my transparent cell...
The further the metalshop progressed on the POM parts, the more i asked them to do. Its easier, but it costs some more money.
Soooo, i did also ask them to do the drilling of the holes for the electrodes.
The man was willing, but the was also a bit concerned to do this. The alignment is difficult and he wants to drill all hole similar........Nor sure what went on in his head :-)
So, he will try this week to get it done. They are really good craftsman, so i trust them....
I did provide some drawings, and did the explaining and gave him 1 set of electrodes.
The reason is that he then can do the exact measurements with his measurement tools....
Lets hope and pray that he gets it done well....
Otherwise i have to buy new POM / delrin bases for the cell..