Orientation of the models is not how they are to be printed, that is just how they come out of Fusion 360 because I am still getting the hang of that.
I printed the arm “upside down” so the legs point up in the air, and it automatically added a brim in Bambu Labs and Cura - this was sufficient to keep it upright. You could print it flat and use minimal supports on the pegs.
There was some ‘stringing’ in the holes even with a Bambu machine, which is usually really good for that sort of thing, they don't block the holes so I didn't both cleaning them out, it isn't like anyone will ever see that part.
No new photos as the original has photos and it hasn't really changed, apart from the slightly filleted edges so they are not so sharp.
The author remixed this model.
I liked the original design, it looked really good - but there were a couple of parts where I thought there could be improvments.
Overall a really nice design, I am just adding some finishing touches to the model / print to make life easier.
While this is a remix, I remade the model from scratch in Fusion using the dimensions and design cues from the original. There may be very slight differences.