Ridiculously lightweight G305 frame/shell

thingiverse

This is an entirely custom designed frame for the Logitech G305 mouse. Several configurations are included, ranging from extreme weight reduction to a more practical mouse design. All the screws needed come from inside your G305. The sides should be fairly simple to modify in any 3D-modelling application to better suit your grip style. It's not an easy 3D-print at all. Some of the parts are small and delicate, requiring a lot of support material that is very difficult to remove. Ideally you'd want to print this in ABS with dissolvable supports. I did mine in PLA, which is slightly more dense and thus heavier, and the support removal was lengthy and annoying. I used Cura 4.0 for slicing, 0.3mm nozzle and a later height of 0.16mm, with very little infill. It's also worth mentioning that the wires inside the mouse are very delicate and can easily break near the solder joints for both the buttons and the battery compartment. For the most lightweight option, you'd want to print the base.obj, buttons.obj and LR41_battery_socket.obj, which comes out to about 28 grams including the PCB, buttons and battery. A little warning: The socket fits 2 batteries, but the mouse should work with only one, use a foil ball if it's too loose. Using 2 stacked batteries will increase the voltage and may in theory damage your mouse. For a more practical AAA battery setup, you'd want to print the base.obj and AAA_buttons.obj. The wheel.obj is difficult to print and should be printed in the orientation it would sit in the mouse to give the axle as much strength as possible. A slight angle is also fine. The thinner shaft that goes into the scroll wheel socket is slightly oversized to ensure a good fit, sand it down slightly to make sure it doesn't slip. Also sand the thicker shaft to ensure relatively smooth rotation. The back plate is purely optional, but it mimics the shape of the G305 and some people might find it useful. Make sure you sand the base and the edges of it thoroughly to prevent any loose bits or sharp corners snagging on your mousepad. Using higher clearance mouse feet might also help. You will need to further modify the finished print if you want to get it down to 24 grams or less, but I wouldn't really recommend it.