A much cheaper way might have been to buy a couple of Novation Launchpads. 8x8 f...

layer8 · 2026-03-19T13:34:17.000000Z

It would be larger (even with the mini), you’d have gaps between the four, and also the four middle buttons in each part have their corners clipped.

But you can get illuminated buttons for less money: https://www.ebay.com/itm/173922115935

relaxing · 2026-03-19T13:40:20.000000Z

Looking at teardown images of the launchpad pcb, it might be possible to shave down the ground plane on the two non-button sides enough that you could mate them up with no bezel interfering.

Re: illuminated tact’s: Old launchpads go for $25 - $30 on ebay, and you don’t have to purchase your own control and power components…

layer8 · 2026-03-19T14:01:18.000000Z

The size and button shape concerns would remain.