I recently got a second prototype in, to try the alternative bottom rows. I decided I don't like the off-centre bottom row as much as I thought I would. Also, the board just looks UGLY with the off-centre design in general, so I'm going to drop it.
The feedback on this thread got me thinking about the bottom rows further though. I didn't go with 2.5u keycaps because they're very rare and almost impossible to get hold of. But here's what the board looks like with the readily available 2.75u keycaps option (2.75/2/2.75):
Here's the same shot with my left hand at home row, and my thumb at neutral, extended and contracted positions:
From the images above, and from my personal experience with this board so far, the size of the space keys are fine, as is the central key.
But I agree that pushing the modifiers away from the centre is less than optimal. That, combined with the fact that the I really miss the row of arrow keys when using a split space variant, led me to update the PCB compatibility to the following (the key outcome is the 4th bottom row alternative):
Now there really is not much room left for any other alternatives, I need to see if I can even fit these on the PCB without serious compatibility issues.
With the 4th alternative, you could argue that the split should be composed of 1.75u/2u/1.75u keys, but 1.75u keys with the bottom row profile are also not very common, and would be hard to get a hold of, especially considering this set already uses 2x 1.75u keys on the home row profile. That's why I went with the 2u/1u/2u split.
Last edited by rominronin (14-Apr-2020 15:57:25)