My desk was running out of space, so I designed this print to mount volcas in a rack. It takes up 3U.

Print two of the models, face down.

These are joined in the back with some M5 heatset inserts and a piece of MDF I had laying around. There is a drilling template attached.

The volca fits in a bit snug, but that's by design so it doesn't rock around. If it's too tight, you can use a file to take a little bit out of the walls (wasn't necessary with my printer).

Pictured is a volca sample 2 and an empty hole where a volca fm2 might go someday if they ever ship :D