DO NOT DOWNLOAD YET. 

For some reason, the negative volume I added didn't get saved. I will fix this sometime in the next few days. 

Loved the idea of having my iPad Mini right next to my printer when running octoprint, so I found this online. 
 

Mount on Ikea Lack table. I have mine double stacked.

I edited their model's in prusa slicer, so it's not pretty but it works perfectly

Upward facing at about 30 degrees.