In my future shack I will have glass block windows consisting of 6 x 8 blocks and a 6 x 16 vent. I've been searching, but cannot find the best solution to pass coax through the windows. I've thought about machining a plastic block to insert in the vent and insert bulkheads through the plastic block, and I've thought about replacing a glass block with a dryer vent, but that is unsatisfactory.
I'm looking for ideas to pass coax through a glass block window. Thanks in advance.