The switches have a 5.00mm x 3.15mm window for LEDs.
The MNT Reform uses the following center-to-center spacing for the keys:
- X spacing of keys: 18.60mm
- Y spacing of keys: 17.60mm
This spacing seems to give an approximately 1.1mm gap between the keycaps of each key.
They are not compatible with Cherry-MX switches. The MNT Reform has a variety of footprints and symbols available for use.
These switches seem to come in three varieties:
- Red - "Linear"
- Brown - "Tactile"
- White - "Clicky"
I haven't been able to find a good source of bulk switches, with the product pages above offering them in 10 packs or 20 packs, with limited stock, and expensive from-the-US shipping.
I haven't been able to find an official source of Keycaps, or a good bulk source.
I have ordered these two different "artisan" sets of 1u caps (expensive, especially with shipping from the US):
The Ergo Alphas state they have a size of 17.5mm x 16.5mm, while the Natural keys don't list a size.
In this blog post, Lukas from MNT Research states "Blank keycaps are sourced from Kailh", though I don't know how he ordered them (probably in bulk), maybe I could buy a batch of keycaps and keys from him.