I needed a wrist rest for my Logitech MX Mechanical but couldn't find anything that worked comfortably - all options were either too high, too short, or both, so i set it upon myself to create one that fit perfectly around the curve of the front of the keyboard and raised my wrist to a height that my arms sat comfortably.
Prints in two parts that fit together using a dovetail connector. The layers on the gently sloping top might be a little unsightly to you, so feel free to tweak print profiles or do some sanding to get the desired finish!