Print with Touching buildplate settings and it will print laying flat no problems.
The oringinal idea credits to EPF also enclosed, I just adapted it to take 2 x Noctua fans.
The Noctua 40mm x 10 kits come with cable snap together clips so no soldering is required.
Fan covers also enclosed.
You will need the 2 x fan kits and small 18mm M3 allen head screws.
Filamentive rPLA PLA