Liberate your Heavy Grail

Plato is a switch plate for the Heavy Grail that gives you the freedom to build and mod to your heart's content. It frees you from the constraints of the integrated plate of the Heavy Grail.



Materials • Colors • Switches

Elevate your Heavy Grail experience by selecting from a wide array of beloved materials for switch plates, including Steel, Aluminium, Brass, Copper, FR4, Carbon Fibre, Polycarbonate, and many others.

Add some color and flair to your Heavy Grail. Maintain a classic look with black switches and a white plate, or opt for an eye-catching combination of clear switch housings and a vibrant cherry red plate.

Liberate yourself

The spirit of this project is to provide you with the freedom to explore new options to enhance the typing experience with your Heavy Grail. The plate files are provided free of charge as well as a small guide to get you going.


Read up on the details to getting your Plato.


Popular file formats for CNC or laser cut.


Your favorite service is just one click away.

Are you Kitting me?

I completely understand if you would prefer to obtain a complete kit with all the parts instead of sourcing them individually. As this is a non-commercial project, I recommend reaching out to like-minded members of the community on the Conical Discord server to organize a small group buy.


Join the great community

Thank you!

I would like to express my deep appreciation to Bogus and Cipulot for their courage in ordering plates for the first version. Additionally, I would like to extend my gratitude to Neko, DerHammer, Rooski, JasonATXBS, Davek184 and Techbeezin for their valuable contributions and suggestions towards this website.

Last, but not least, to Ryan Norbauer and his contributions to the Topresphere.

The inspiration behind this project was to cater to the needs of the amazing Topre keyboard community and assist them in achieving oneness with Cup Rubber.