I needed another corded mouse and this time around I thought of @PKL@mastodon.social and @pronk@mastodon.social instead of Logitech's shareholders. These guys make open source mice among other open source hardware under the brand Ploopy. You can order one from them, assembled or as a kit, or you could print and build it entirely by yourself.
The mouse itself is pretty great. Coming from a long line of Logitech (MX518/G5/G500/G502), it's a bit larger than what I'm used to but I think I'm getting accustomed to it.
Here's another shot of it:
Theoretically, you can mold it to fit your hand but the tolerances and mountings make that a hassle.
As for the print itself? Most people just do a quick print and have the telltale ridges from layers. But you can futz with settings to improve the smoothness or just finish the print itself. At which point it is not going to be as smooth as injection molding but it will be more "different" than "bad".
It depends how it was printed.
As a SUPER simplified basic: Any 3d print consists of walls/perimeters and infill. The walls are the exterior surfaces of the print. The infill is what is inside. And the vast majority of prints tend to be sparse infills. So rather than solid plastic beneath those walls, you mostly just have air and a mesh structure of some form.
So if the wall is thick enough (generally referred to as "number of walls")? Sure. If it isn't? You'll just see the void inside the shell itself and make things much worse.
What is generally done to reduce "3d printed texture" is a mixture of smaller print layers (so the ridges are much thinner), printing with more walls, and actually lightly melting the exterior surface (either through chemicals or heat).
VKB are probably the kings of the mid-range sicko HOTAS market and I am like 90% certain they 3d print the shell of their sticks for the Gladiator (?). But they do such a good job that I genuinely can't be certain. Whereas the vast majority of ploopy builds... aren't that.