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
Video comparison on plate mounted Cherry Browns: https://www.youtube.com/watch?v=VSmqPbCp2_s
I didn't break any clips, but I can definitely see how you could - they do require quite a bit of force to get on - enough that I'm not sure you'd really want to install these on PCB mount switches with lead-free solder.
I found the best way was to very gently lower it angled, and pushed left or right so that you get a very very faint click, clipping one side in, then to lever it while pulling in the opposite direction and pushing down to clip the other side. About 2/3rds of them have a distinct 'click', the rest are a little more finicky.
Also, make sure the left and right walls of the clips are straight and not bulging. If they are bulging out slightly, it means the clip hasn't attached properly. A quick press down with a spudger on that side fixes this.
So far, highly recommended.