This is a replacement for the fan shroud that comes mounted to the hot end of Monoprice Select Mini printers. This new shroud supplies the printed parts and heat break with superior cooling and allows for the mounting of a 40mm fan.
This model was designed to work with m4 bolts which means that whatever 40mm fan you have should have 4mm diameter screw holes in it. I have attached a stl file with a 3D printable bolt in case you do not own one of the correct length.
The clearance between the bottom of this shroud and the print bed/printed part is about 1mm. Thanks to the super simple and repeatable mounting of this shroud, this value should be fairly consistent for everyone who uses the model.
This shroud is even easier to mount than the stock shroud that comes on the printer. While the model still uses the same retaining springs, the tabs are a little bit easier to get the spring around and the flat piece at the top of the model forces the assembly to stay in place after the first spring is attached.
This design is still a work in progress and as such, comments about possible improvements and any questions you may have are welcome.
Prints well with no supports and with any infill value. I personally used a layer height of 0.0875mm. This resolution should give the best results, but a layer height up to 0.175 should work as well.