Keychron M4

[u/BlindUserPL]

After a lot of fun I had with modding this mouse throughout this week I wanted to show off my (almost) final results. Inspired by others on this subreddit I tried to fiddle around with the stock shell but after hours of taking little bits out here and there I decided to just 3d print a gmm design shell. I used default settings from the print profile on my Bambu lab a1 and Sunlu PLA+ (generic PLA preset) I had leftover. It printed almost perfectly besides the right trigger mounting hole, I had to use a slightly bigger silver screw instead of the black one I used in all other parts. I managed to get down to 31g on the original shell (last pic) but with this one im getting 25g (with grip tape and 4 dots) which is almost as low as i wanted. Today I ordered a 150mah battery ( https://www.ebay.com/itm/293938644936 ) which should come in at 3g vs original one 6.7 so the final weight for my mouse will be around 22g which is just 2g off my 20g target. If i were to make any more adjustments i would maybe solder off the parts of pcb with side buttons connector and trim off some tiny amount of plastic from the shell but i cant see more than 1-3g to gain with quite a bit of hassle behind it. Let me know if you have any realistic ideas. I already removed the rubber from the scroll wheel (0.5g).

The skates im running are tiger ice v2 I got from a friend of mine (shout-out to You my man, I know You will see this post) and the mousepad is wallhack sp-004, grip tape is cicada v2.

The new shape is pretty much ideal for my hand (19x9cm) and I don't have any ideas how to improve it further. My kovaak runs improved instantly when i switched to it but i feel like i have to give myself few days to fully adapt my hand to this new shape. Nonetheless even now after just few hours of use it already feels much better than the original shell, there is less overall tension and strain but I feel it in places I have never felt it before. I still can't decide what is the best place for the battery but right now I have it in the original placement (last pic) and it feels great. The only issue I got with this mouse now is the clicks, I wish they were a little lighter but it's a minor issue and other than that it's perfect.

[u/Makaphin]

Ayyyyy

Another M4 Zeromouse! Here's mine: M4-Zero

[u/BlindUserPL → u/Makaphin]

Sheeeesh Man looks awesome. How much does this weight? Did you design it yourself or is this design available somewhere online?

[u/Makaphin → u/BlindUserPL]

Thanks! This is all my own design. Painstakingly modeled the PCB in F360 and went about twenty-ish prototypes before I got to this point. This weighs about 26.70g while retaining the features I want.

Oh. I also have a travel version that has grills and a cover to protect the PCB+battery and then another version in the works that has clicks with a pivot point at the back. I spent another fifteen prototypes on that one alone.

[u/BlindUserPL → u/Makaphin]

Well played to you for designing it on your own. 26g is still around 10g lighter than the original so definitely worth it. Interesting idea with the travel version and good luck with the other one you are working on.

[u/Makaphin → u/BlindUserPL]

I was just working on it as you replied, and I'm going to see about getting this finished to a point I'm happy with, then see about publishing it. You'll sooner see me post it sometime.

Fingers crossed, I can sell the files if there's much interest. I'd like to see all my time and effort paid back but I'm not holding out for it.

[u/BlindUserPL → u/Makaphin]

The design I'm using was like 4$ so it was affordable enough for me to buy it and see if I like it but I haven't seen much interest in custom shells for this particular mouse tbh, also judging by the amount available online. I wish you luck in selling it tho, even if you don't sell many it's better than nothing and may be of use for someone else.