I wanted a two-fan setup so I added this Left Side Mount to match what I had on the right. It attaches with the original M3 screw. You'll need two M3x30 machine Screws with Nuts for the Fan.
If you Make this one… Be advised that you'll be digging out supports for awhile (see pic). Go slow, and they'll come out.
Fans I used: https://www.amazon.com/dp/B08R9G2VDR?ref=ppx_yo2ov_dt_b_product_details&th=1
Note: The E3V3SE Fans use a JST 1.25mm Male Connector. Male/Female pairs are available on Amazon to splice a “Y” connection. On Amazon: https://www.amazon.com/dp/B0B5D5N332?psc=1&ref=ppx_yo2ov_dt_b_product_details
The author remixed this model.
Added a Honeycomb Fan Guard and second mounting hole for the Fan