Roland FP-30 Piano Power Supply Holder

I modified another design to accustom the FP-30 PSU and made a few changes for my needs:

• the whole design is slightly longer because of the longer PSU
• it's mirrored, so the mains cable comes out towards the left leg of the piano when mounted
• I removed the rounded corners of the closed end of the shelf to make it easier to print.

Notes: 

Print the whole thing standing up with the "U"-shaped end of the shelf on the bottom. No supports but a little bridging is required for the top and may lead to a frayed edge but in my case nothing I'd worry about.