VESA Mount plate/bracket for cheap amazon/ebay monitor arms

I designed this bracket after I dug out my old dual-monitor arm desk clamp for my partner. I had 2 monitors for her but I could only locate one of the mount plates for it. I trawled the internet and even asked Chat GPT to search for me and give me keywords to try but I had no luck.

Instead I designed this and with an iteration, I have something that works just fine. It's not refined by any means and could do with some design changes, but functionally, its perfect.

I printed it in PLA Tough on my Bambu P1S with the 0.20mm Strength profile and its more than rigid and strong for the job. I also used some longer M4 screws with nuts as spacers to help fix it.

The groove at the bottom is for this extra wide bit to slide in that mine has. I'm not sure if they all have it but its there just in case yours is like mine.

Basic dimensions are 113x113mm for the outer profile.