To enable temperature of regulation of the primary mirror I have designed and printed a fan mount. The fan is controlled by ArDewNo and serves a few purposes:

• Bringing the temperature of the mirror back up ambient when it drops below.
• Preventing and removing condensation.
• Cooling the mirror at the start of the session.
• Breaking up the boundary layer effect.

I have also printed an outer ring that acts as a stand off with a 5mm slot for the fan and temperature sensor cable to pass. This protects it from being crushed when the telescope is stood upright on the floor.