Sale price€7,00

Tax included. Shipping calculated at checkout

In stock

Estimated shipping:
End of May 2023


From here you can get single foam pieces. You do not need to add that, because all HMKB kits already include the foam. Adding an extra foam piece here, makes sense if you like to have a spare one or if you want to build a second pcb-plate-switch-stack, for swapping.


This is EPDM foam with a thickness of 3.5mm. This exactly fits the gap between switch plate and printed circuit board. By filling this area with foam, you prevent sound to resonate in this area. EPDM is a dense foam which is well suited for sound and shock absorption. This foam is non sticky, which makes it very easy to work with.


Depending on the combination of your plate and PCB, many different layouts can be build. To see exactly which layouts you can build with your desired HMKB size and version, please go to the layouts page to learn more.

The images are 3D renders and are for illustration purposes only. The final colors may differ slightly.
For powder coating the parts are put on racks. This will leave a little mark. It is usually at one of the holes. Since the holes will be covered by the bolt heads, these marks will not be visible when the case is assembled. Although highly unlikely, it is possible that dust particles may be caught in the powder coating.
The bending process leaves slight marks. They are not a concern for the powder coated steel parts and not be visible at all. The stainless steel parts are not powder coated but bead blasted instead. On all of the prototypes the bead blasting removed those marks completely and they were not present anymore. Still, there is a small chance that some stainless steel parts may show slight traces of these marks, even after the bead blasting.
The angles of the flanges may not always be perfectly 90˚. Though unlikely, a deviation of up to 1˚ can occur. This would still be hardly noticeable.
The switch plates can have scratches.
None of these effects are considered a defect.

Shipping world wide, with just a few exceptions. See the current shipping prices over at this page.

Updates regarding shipping will be posted on the HMKB discord server. Some of the updates will also be posted on the group buy page on geekhack, though the discord server should be regarded as the main source for updates. The Newsletter will also provide some updates.