Had this printed for my six year old son, who had a stroke sometime at the time of delivery. As a result he only has control over his left hand and hinders him from playing most of his games. This adapter made it so that he can play his Switch with one hand :-)
Since his hands are pretty small he prefer to use them inwards, instead of how it was intended. I also added small "slots" (or markings), so the controllers doesn't slip out when playing.
I don't have the printer settings since it was a friend of mine who printed it for me.
Thank you so much for this.