Found a few parts were sticking even after sanding and it was shifting to the side easily on the cardboard carry box I made.
Extended arm by .25mm, a little too tight for my liking, although a thinner pin may work too
Sanded all areas that made contact, drilled out inner holes for better swing, and used a metal 3mm rod for pins (cut and filed to fit).
Imported into blender, replaced a few subdivided surfaces with whole ones, then segmented to create bevels where needed.
The author marked this model as their own original creation. Imported from Thingiverse.