Wall mounted arms for for Studio lights are REDICULOUSLY expensive! I figured out how to modify my existing tripods to do the job. I used a Focoos Odin 5 S3 printer to make the parts and that printer currently costs $350. Coincidentally that is the cost that I would have spent on 4 of these light arms if I didn't have the DIY running through my veins.
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https://www.youtube.com/watch?v=tJD4FnVp_po