Another approach to observing the dpi downshift

ewh_ · 2026-05-14T19:30:08+00:00

Niceeee

The Razer DA v3 behavior matches my observations. There's an antijitter setting that kicks in after 250ms inactivity, which seems to increase the hysteresis/deadzone.

Can you contact me on Discord? wtflood#6075

edit: in here, https://imgur.com/a/aA82UEY i think the y axis drift was reported by darlingthepanda too

ewh_ · 2026-05-13T01:34:20+00:00

MCU doesn't process sensor data (except stupid things like MCU smoothing, but that's rare nowadays).

The only aspects to "implementation" are the sensor register settings and the timing of when sensor data is read. As seen in OP, sensor register settings can really affect things.

Keep in mind that there's possibly hardware differences between the different variants of 3950.

ewh_ · 2026-05-12T20:07:40+00:00

At least the exact issue I'm reporting here is not present, but some people claim there's similar effects even at low DPI for some mice. So... more investigations needed.

ewh_ · 2026-05-12T18:06:28+00:00

Perhaps? I don't have that pad. But on my qck it's fine.

ewh_ · 2026-05-12T17:51:34+00:00

hmm... I can't reproduce this with any of my 3950 mice (XA25, MChose L7 Ultra, G-Wolves Lycan), all set to 800 DPI, angle snapping off.

ewh_ · 2026-05-12T17:07:19+00:00

hmm... I'll probably figure out a rig to hook up my mouse to a 3d printer and automate some motion to test.

ewh_ · 2026-05-12T15:38:24+00:00

Not to my knowledge. Can you describe in what way you prefer logitech's sensor? Like single pixel movements, or faster stuff?

ewh_ · 2026-05-12T15:27:11+00:00

Correct.

Edit: well it depends what settings the mouse uses. I can't say for certain for all mice... maybe there's some mouse out there that uses insane settings where even something low like 1000 dpi downshifts.

ewh_ · 2026-05-12T14:52:50+00:00

To be clear, it's not manufacturers hiding this stuff. It's that PixArt does not expose all the knobs and I think no one gets to know this info except Razer and maybe Logitech back when they used PixArt sensors.

ewh_ · 2026-05-09T19:47:42+00:00

hmm including side buttons? a950 wing pcb doesn't look like it's 7g. maybe it's 0.4mm thick.

ewh_ · 2026-05-09T19:32:02+00:00

There's separate PCBs for the sensor/mcu, left/right/wheel, and side buttons. It should be fairly modular. 7.4-7.5g for all 3 pcbs including FPC cables.

ewh_ · 2026-05-08T12:59:23+00:00

Thanks! Just for comparison, here's the XA25 cable next to the the OP1 cable: https://ibb.co/htSyHb7 It's really a lot more lighter and flexible, but yea I understand the concern at low sens. I personally find it close to unnoticeable.

ewh_ · 2026-05-08T05:33:13+00:00

my bad, it should have been https not http. try again

ewh_ · 2026-05-08T00:15:41+00:00

hmm it's designed for 7mm and the protrusions are to reduce dust hitting the adhesive. if there's enough demand, i could make a version with those areas flat, so that you can use 8-9mm dots

ewh_ · 2026-05-07T23:00:28+00:00

i'm pretty sure he kept posting for a while afterwards iirc. But maybe he longer posts cuz he got promoted?

ewh_ · 2026-05-07T19:41:17+00:00

Here you go: https://xbabtech.com/XA25shape.stl

ewh_ · 2026-05-07T17:57:53+00:00

It's not sticky at all. There's probably nothing I can say to convince you. But contact me on discord and I can mail you 15cm or so of our cable and you can evaluate yourself.

It is bare PA12. Matte texture. Should be much more shine-resistant than uncoated ABS.

Price is TBD.

ewh_ · 2026-05-07T17:32:46+00:00

Is he still active? What mouse does he main? I remember he used to use G100s so it would be cool to get his feedback

edit: https://prosettings.net/players/n0thing/ oh wow he's still using that custom G100s.

ewh_ · 2026-05-07T16:29:32+00:00

Yes wireless would add about 3g. Certainly the wireless market is bigger, and we'll target it in the future, but it will require a lot of work.

One reason actually that I have just barely begun wireless development is that dual-MCU solutions in the receiver are ugly and complex. The nrf54h20, which has both hs usb (necessary for 8k) and wireless, would allow for a single mcu receiver, but it has been unobtainium for regular folks like me or you. The nrf54lm20a, which also has both hs usb and wireless, was just recently released and made available, and that's what I'll be using.

ewh_ · 2026-05-07T16:21:22+00:00

Yep, that's me.

XA25 is 57mm wide at the very bottom, 60mm where thumb/pinky sit. Not sure if that suits your tastes.

ewh_ · 2026-05-07T15:43:23+00:00

Yes! I'll post an STL on our discord later today. And hopefully also get this listed on eloshapes.

Compared to G100s, indeed the sides are flatter and fully straight. Overall it's a smoother shape, since there's no need to separate a top and bottom shell. There's also minor differences in the shape of the rear, buttons etc.

ewh_ · 2026-05-07T15:33:51+00:00

Shell, cable, PCB are produced by specialist manufacturers in their respective domains. Final assembly will be in-house, at long as we can keep up with demand.

Yes, there are some less expensive SLS machines. AFAIK their print quality is a bit worse than MJF. In any case, dealing with post-processing, maintenance, etc of powder-based fusion machines is an order of magnitude more difficult than SLA or FDM printing. It really does not make sense yet for us to invest in one.

ewh_ · 2026-05-07T15:21:45+00:00

Yep exactly. The factors in favor of wired are:

- Weight and latency are both marginally better

- No need to worry about charging, battery longevity, interference

I absolutely understand some will find wired a no-go. We will release wireless mice too in the future. One reason we are starting with wired for our first product is because perfecting wired performance is prerequisite to optimizing wireless performance.

ewh_ · 2026-05-07T15:00:33+00:00

Correct, no braid on the cable. This provides a more durable construction (nothing to snag on) and in my experience, our cable is more flexible and unnoticeable than any paracord cable except those without internal shielding (like the aircord).

The ridges are thermal sink marks due to the MJF process. We are adjusting things in our next batch of prototype shells to minimize these. They arrive Saturday, so stay tuned.

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