Now with separated logo of TK90X for no AMS users. You canchange color manually just for logo.
TK90X full case created by Yago and Miguel Roberto (creator of RobGO_RG) modified to acommodate an mechanical keyboard.
This case can  receive an RobGO_RG ou original TK90X/TK85 original board.
It uses an highly flexible keyboard PCB that I have developed to substitute original membrane or become an entirelly mechanical keyboard.
I used keycaps created by (https://makerworld.com/en/models/119425-replacement-zx-spectrum-48k-case-key-caps?appSharePlatform=whatsapp#profileId-154118)
You can try different orientation for best results, I used horizontal orientation.
Good luck and have fun.