Adjustable Circuit Board Holder Span
thingiverse
I purchased a PCB holder and it had a max width of 9". That was too short for a project I'm working on, so I made this modular span replacement. The pieces are 30mm x 15mm x 120mm with an additional 10mm for the plug ends. There is only mechanical friction holding them together, so I would suggest cyanoacrylate glue or epoxy once you have the length you need. The board I have is about 11", so I printed one male end cap, one female end cap and two spans. Holder: https://www.amazon.com/gp/product/B01709B0PW
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