MPSM 4 Channel Relay Mount

I have a MPSM and recently printed out [front](http://www.thingiverse.com/thing:2071300) and [back](http://www.thingiverse.com/thing:1718715) vesa mounts. I use Octopi running on a RPi2, and wanted to be able to turn my printer on and off remotely from the webpage. I purchased this [relay](https://www.amazon.com/SainSmart-101-70-101-4-Channel-Relay-Module/dp/B0057OC5O8/ref=sr_1_2?ie=UTF8&qid=1485925535&sr=8-2&keywords=sainsmart+4+channel+relay), and wanted to be able to mount it under my Pi, on