UP Mini Extruder stepper platform and wind barrier modded for better motor cooling

Extruder stepper motor temperature taken after 1 hour of printing with all the covers off and door open. Same model printed for each test at layer 20.

Original stepper motor platform.
55-58c fluctuating.

*Stepper motor platform modded with air holes.
47-50c fluctuating.

Stepper motor platform with inproved wind barrier sealing.
54.7 c steady.

New wind barrier design.
48.7 c steady.

New wind barrier design and **fan air flow reversed.
48 c steady.

*Perfor