The Tetent concept hasn't been updated in months, and that's honestly because I usually don't use a desk (I've lived a life of laptops) and so the mounting solution has been unsolved. 

But I was thinking and thought "wait, the #Tetent TwySize [gd0040] concept was 220mm and #Teti [gd0022] has 216mm of space (up to 232mm). What if I reduce that concept to 215mm and say it's just the stock standard Tetent?"

While I'm not a fan of the form of the thing from any angle other than the angle for the render image above, it does seem like a rather practical solution. As long as it's ergonomic, and with #Tetent TimerSpy [gd0136] considered the "endgame edition", I think a single slab is fine instead of 2 split halves. It's cheaper too (only need 8 Tetrinsics) and I would no longer have to worry about what interface I'd use to keep the two halves synced until TimerSpy.

I'd like to mention that I am aware of the possibility of "I've already built X so why bother making X Pro Max?" mentality meaning that TimerSpy never actually gets built if another Tetent project is completed first. Unfortunately, it doesn't look like my human-to-computer input requirements are going to fall anytime soon and I could REALLY use a Tetent RIGHT NOW. Tetrinsic's already got enough complexity as is, and the bluetooth and ergonomics hurdles of TimerSpy mean that it's in my best interest to get a proof of concept out of the door before going down that route.

The TwySize concept's main benefit is that a mounting solution isn't needed. The palms hold it in dual hand mode and it seems that it could be used single-handedly either by placing it flat on a surface, or by using the palm to push the other side onto something like a thigh to keep it in place. I tried just now with an A5 hardcover journal and it seems to work. It's also still technically ambidexterous, as both hand sides are just combined together.

This also would serve as a good way to get as many benefits from TimerSpy without as many drawbacks, such as the dual screen reflective LCD (which is much more useful than the OLEDs I planned to use months ago for Tetent) and IMU based gestures, such as tilting one side to go into mouse mode or using the entire thing as an ingame steering wheel.

I was going to leave printing out the concept until later, but perhaps this proposal is reason enough to confirm that it is ergonomically viable.