What is SpaceFN and why you should give it a try
The SpaceFN concept - setting up your space key as a layer switch when held - is probably one of the most useful tweaks in the keyboard hobby. Let me explain how it works. My SpaceFN article on kbd.news made some rounds recently - quite surprisingly given the age of this concept. This piece you're reading is a condensed version of the full post. If you're left with unanswered questions, you'll most likely find the info you're looking for in the original write-up. On my imaginary top list of the most useful keyboard features, tweaks and hacks, SpaceFN would deserve a podium finish for sure. But what makes it so special? In short: SpaceFN is easy to implement, easy to learn, costs nothing, can be used with any keyboard, and can improve your productivity instantly. I will list its benefits below, but can state right at this point that the SpaceFN concept, setting up your space key as a layer switch when held, is clearly one of the most useful tweaks in the keyboard hobby....
Apr 30, 2024
There must be some rule that only touched up low res glamour shots can be posted in the Description. A simple thing like a full high res shot of the underside of all the keys, as ugly as it would look, would answer most of the questions people have. Side by side shots of V60 Matias keys with the same keys from this set. Same with Dell AT101w keys.
What we know so far is that these fit fine on a V60 Matias.
From that and this: https://geekhack.org/index.php?topic=66875.0 We know that all the stabilized keys except the space bar will probably work on an Dell AT101W.
For the Infinity the space bar will probably work. There are some pictures here, http://www.notoperator.com/2015/05/26/infinity-keyboard-building-my-own-mechanical-keyboard/ An Alps space bar with Costar stabilizers. The rest of the stabilized keys on an Alps Infinity are also Costar so these will not fit. The only 3rd party modifiers for Infinity Alps are here https://geekhack.org/index.php?topic=70817.0
V60 Matias, all keys fit. Dell AT101W, all keys Except Space bar probably fit. Infinity Alps, stabilized keys won't work, space bar probably will.
Now take the sample set back from the engineer who is enjoying them and take some pictures of the underside of all the stabilized keys. Find an Infinity Alps and try putting the keys on that. Find a Dell AT101W and try putting the keys on that.