I built myself a 40h using the sparkfun-buttons and ready-made pcbs by Bibo. The case was a problem though. I've created a 3d model in SolidWorks to design the parts.

Milled aluminium faceplates are expensive, so i designed a sandwich faceplate out of three laser-cut steel sheets. See the pictures below.


The construction is pretty simple: The pcb and the bottom sheet hold the rubber button pads in a sandwich-like manner. The middle sheet is put on top via 5mm spacers. Seven 2mm thick aluminium plates with screw threads are glued under the top sheet. This construction allows for a blank faceplate without visible mounting screws, yet it provides a screw thread to be fixed.
The complete construction can be mounted from the back of the wooden case via 20mm spacers.

The cost for these 1mm sheets is very low, compared to a milled faceplate. The 7 aluminium plates can be made at home, however, you will need a thread cutter for this. The spacers (5mm and 20mm) can be bought at almost any electronics shop, I got mine from Reichelt.

The wooden case is a bit complicated to build. I tried to find an easy version, still you will need router and a very tiny milling head. The look of the "real" monomes has taken a shine to me and becourse this device is all about perfection, I could not resist to have one with rounded corners. You can leave out the rounded corners and it will become an easy task.

I haven't finished my case yet, but I'll keep you updated about the building process.


  • Received the steel sheets and got an idea, where to get american walnut wood (it's darker that the european walnut) for the enclosure. The steel sheets fit perfectly, still I need to cut the aluminium plates and find a good metal glue.


Downloaded 253 times. Md5: 5d5f66e5cb5718e139310a825c2b3132
Downloaded 126 times. Md5: a4cf2e93f9452495d11500b084310f87
Downloaded 155 times. Md5: 5031604bd86cd9a87538683e28f9f81a
Downloaded 207 times. Md5: 9911ac007bda9b7c25ade601ba625998
Downloaded 158 times. Md5: 4236418fa0acd87cd88c8458b9ad54eb
Downloaded 132 times. Md5: 458dc518a86748bba92c7697f93f0bdd