Monoprice MP Select Mini V2 40mm Fan Shroud with Fan Booster

thingiverse

I'm glad you checked out my remix. I made it for a few reasons: the stock hot end/extruder fan wasn't doing its job, so I upgraded to a 40mm fan with a much better designed shroud, but I also knew I needed as much static pressure as possible from that small fan. If you haven't seen videos of a fan booster in action [check this out](https://youtu.be/rDq4KSlZcTo?t=51). I added a cone on the inside to help with turbulence; it looks good and works great, so I'm sticking with it. There was a huge improvement in print quality and no more jams after upgrading - especially after switching to an all-metal hot end. Highly recommend. This remix is built from [keco185's Monoprice MP Select Mini V2 40mm Fan Shroud](https://www.thingiverse.com/thing:2448223) and [pointfiftytracer's 40mm fan booster](https://www.thingiverse.com/thing:2347716). **keco185's description of the shroud:** 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 your 40mm fan should have 4mm diameter screw holes in it. I've attached an STL file with a 3D printable bolt in case you don't own one that's 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 it. 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. **For the 40mm Pressure Booster, from pointfiftytracer:** This is a pressure booster for a 40mm fan. I don't know the exact angle the fins should be so it might not be the most efficient, but it definitely is an improvement. (can confirm, it boosts pressure significantly.) The part has already been run through Netfabb for cleanup and was meshed in Tinkercad.