
The critical ray
Aim light exactly 3√3 M off-center and it neither falls in nor gets away. It winds onto the photon sphere, one and a half times the horizon's radius.
Black caps, one line of yellow-orange light.
GMK CYL profile · ABS doubleshot · Made in Germany

A black hole's event horizon is the line light can't come back from. Here it's the number row, a single straight yellow-orange stripe across a black board.
Black alphas and mods with yellow-orange legends.

Aim light exactly 3√3 M off-center and it neither falls in nor gets away. It winds onto the photon sphere, one and a half times the horizon's radius.

The far side of the horizon. The letters read as if from inside, and the mods drop to dark gray legends you can barely see.

A black hole on the Enter, Blackspace on the Backspace, a redshifted wave on the long Shift, a Penrose diagram on the Alt, and 2GM/c², the horizon's radius, on the Ctrl.
Black and Melon, plus dark gray for Black Hole's legends and the dark spacebars.
GMK CR
Color #171718, code GMK CR
RAL 1028
Color #FF9B00, code RAL 1028
GMK N9
Color #393B3B, code GMK N9







Renders by Good Egg. Every board is a 3D render, not a photo. Screen colors are close but not exact.
Pick a kit to see what it changes on a 75% board.
The alphas mirror and the mods go dark. The function row and the stripe stay as they are.The stripe turns black, for an all-black board with yellow-orange legends.Art keys in place, from No Esc and the function-row icons to the black hole on the Enter. The dim icon on F7 is the dark gray one, for Black Hole builds.The Melon 7u spacebar. The dark gray one is in the kit too.

The whole black board with the yellow-orange stripe, plus Melon Esc and Enter options and a numpad.

Mirrored alphas and dark-legend mods.

The stripe in black, for an all-black board with yellow-orange legends.

Doubleshot art keys, molded like the legends.

Melon and dark gray, each in 6.25u, 7u and 6u.
Six of the 22. Most come straight out of the textbook.

The base kit's GMK box carries the ray-tracing plate on its lid, with the wordmark in yellow-orange below it.
It's in design. The interest check opens on communikeys soon, and the answers there decide what goes to the group buy. Join the email list to hear when it opens.
Base alone covers 60% to full size and 1800, plus Tsangan and WKL bottom rows. It also has the ISO Enter, 1.25u Shift and extra ISO keys, with US legends, the 6u spacebar for HHKB and the split spacebars for Alice and other ergo boards, so no add-on is needed to finish a board. On purpose, it doesn't cover 40% boards or UK and German ISO legends.
GMK's doubleshot ABS keys have legends molded in a second color of plastic, so they never wear off. GMK has matched every color in this set before.
Black Hole is the far side of the horizon, where light doesn't get out. Its mods have dark gray legends on black, so they read best in good light.
Each kit needs a minimum number of orders in the group buy. A kit that misses it isn't made, and it comes off your order. The interest check itself is a free poll; no money changes hands.
After the interest check, once the kits are final and GMK and the vendors confirm a slot. Join the email list to hear first.
Email [email protected]. Kevin reads every message.
Join the Good Egg email list. It only writes when something opens, like the Event Horizon interest check.