A fixture that can aid for mouse assembly
Do you have a picture of the mouse? What parts are being assembled exactly?
My suggestions is to keep it simple and use pegs that stick up from the board it will be sitting on. You would need 3 or 4 pegs. Place the pegs to where you would eliminate its degrees of freedom. (ie. moving north to south and east to west to hold it in place) Having padding on the pegs would help prevent damage also.
Heyy Jonathan, nice to meet u.The mouse design is something like logitech. The assembly part is the case, which is its body. So would like to have a jig or fixture to support one of the bodies for being assembled (or screwed) with another.
Could be as simple or complex as you can imagine. Simple would maybe have a board with some pegs (covered/rubber/etc so as not to damage/scratch mouse body) sticking up...enough to just drop one mouse body part in place and hold it there. More complex maybe have a clamp that secures it in place too, etc.