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I found some STL's for clips for those panels here: https://www.thingiverse.com/thing:1788048Also - I used these specific panels: https://www.aliexpress.com/item/Indoor-interior-SMD-led-module-p6-price-aliexpress-full-color-led-screen-board-module-192mmx192mm/32634756412.html
Wow! Pretty cool and easy instructable. Your docs were excellent. Next up, make a nice case for it, maybe look into expanding the panel matrix.
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