I don't know if you guys thought of this, but i think its better to make the miner stand sideways , rather than leaving it on one of the side. Works for me and stands rock solid.
No need to worry about the heat under the board anymore ? :

Just unplugged it to reverse that handles just to be safer. And going back to mine.
nice real nice. now if you buy this
and some of these to line the tray to make the tray absorb the heat,prevent fire damage and prevent shorts. I think the prisma may be fully tamed. even if it burns up due to a hot cap.