Topic: Fully Assembled fan-guide plate replacement
Attached is the STL for the replacement fan-guide plate for a Fully Assembled model from OS Printing LLC. This replacement allows for use of a single roller rather than the double pivoting system introduced initially by the OS Printing.
It is set up to use all OEM parts from the fan, to the bolts, nuts and guide roller.
There are 4 fan holes, but you only need to use 2 of them and you'll want to drill them out a little bigger than the 4mm size they print at if only to make assembly easier.
There are 2 sets of holes in the sides for mounting to the unit. You only need to use one set of them as this will allow you to verify fan distance from the nozzle. This also allows you to pitch your fan away from the nozzle so that you don't lose temp from the airflow. Height of the fan will be up to you, but I have mine mounted about 1" from the top of the mounting slots.