The system wide setting only goes as far as turning the vibration on or off. As far as I can see there’s no way for me to regulate it.

I just want to be able to regulate the vibration intensity or pattern. Signal vs. Snapchat for instance. Quiet ish vibes vs. an earthquake. I think they had that feature a long time ago in android 7 or something like that.

Yes, because less heat. So we can crank it higher with no drawbacks. (Simplified reasoning I dont know a lot about circuit boards)

What type of numpad is that? Looks like there’s an extra row.

I think you could get it first try if you add the photo and measure what you can with calipers as well.

I’d just have a ruler placed next to the profile, taken a picture and traced it in CAD. If something is, lets say 64,5 mm in my initial trace I can safely assume that the dimension is supposed to be 65 mm. When you feel like you’re done, make a test and then maybe iterate.

Also agree that whatever approach you think is the easiest may be the easiest approach.