Metal Delta 30mm to 40mm fan adapter

I designed this to fit in the small space between the ball studs on the Metal Delta. It is 5mm high and when used with a 40x40x10 fan shrinks the print bed radius by 10mm.

The adapters should work with both button and cap screws.

I printed 5. One each to replace the 3 fans on the effector and 2 for the hotend.

I use the Noctua NF-A4x10 FLX fans.
M3x6mm for the adapter to effector.
M3x12mm for fan to adapter