I've always had problems with cooling on the Play and decided that I wanted something that incorporates a hefty blower fan. Unhappy with the default shroud the Printrbot Play offered and inspired by calvinibas work I started working on my own shroud.
Note that this is a Work in Progress!
This design has several weaknesses:
- The blower fan is only secured by one screw. I've secured mine with a bit of glue, but more support would be preferable.
- It hard, but possible, to mount when the extruder is installed.
- The blower fan is partly pointing at the nozzle, forcing the hotend to use more energy to keep the heat.
You need to flip the STL file upside down to print.
Installing this shroud is... finicky.
First off, you need to have the aluminium extruder that has three threaded holes on the bottom side.
To install this shroud, you'll have to take off the lower block of your extruder and take out your hotend.
Then, screw this mount to the extruder part. You need to use screws with small heads for this, otherwise you might run into problems mounting the blower fan.
Next, mount the blower fan to the one hole and tighten it up. I use a bit of loctite to get the fan to stick where it should be.
Reassemble the extruder now and screw in the small 30mm fan on the front.