5020 50mm x 20mm blower with dual intakes

(old 2020 design imported from Thingiverse)

This is not the common 5015 blower. This is a 5020 blower (squirrel-cage radial fan) with dual intakes and a much bigger outlet that is significantly quieter than the 5015 blowers.

I've been using this in some custom designs and needed the model for FreeCAD.

I'm uploading the STL as I think it's required to publish a part, and including a STEP file which should work for any CAD package in case anyone else finds this useful.

I couldn't find a decent model of this on any site, so decided to model it, myself. I got carried away and made it more detailed than needed.

The biggest problem was figuring out what dimensions were accurate for the mounting hole location and orientation, as I found many conflicting and incomplete drawings online. I took many measurements directly and compared those to narrow down the field. I finally printed a 1mm slice of it and laid it up against my fan and it's a near perfect match.

2023-01-28 update:

Since this thing is still downloaded regularly (far more than I ever would have guessed), I figure some people may be interested in where I bought mine.

This is the 12V version I use (5 pack): https://www.aliexpress.us/item/2251832652283754.html

This is the 24V version I use (5 pack): https://www.aliexpress.us/item/2251832653285131.html

Note that I have no relationship with these sellers at all other than being a customer.

Category: 3D Printer Parts