With the summer heat and a non-airconditioned studio, I’ve found times when I couldn’t print. I found this useful design for a homemade A/C unit on Instructables.
Styrofoam or plastic cooler
4" +/- tube for exhaust
Frozen water bottles
Tool to cut holes in cooler
Cut a hole in the top of the cooler for your fan to sit on. It will blow air into the cooler.
Cut a hole in one of the sides of the cooler for the exhause tube.
Fit tube in hole.
Fill cooler with frozen water bottles.
Position cooler so exhaust tube points to the right front corner of the GF (this is where the air intake is).
Put fan face down on the hole in the top of the cooler.
Turn it on.
VOILA, you’re done.