Summary

Add on Ducts to direct the cool air streaming out of your Power supply and Ramps enclosure away from your heated bed saving you energy and heat up time.
Also helps reduces fan noise , stops debris falling into your PSU / Electronics and if like me you are using a cheap Chinese SSR keeps your Solid state relay cool.

fix in place with a few drops of super glue / hot melt glue / silicone sealant.