A muffin fan? Explain a little, if you could. Is that 10VDC? Or can it be rigged right up to 120VAC?

Which kind of light tight vent were you able to find for your project? Special order item? Or Home Depot grade materials?

Last thing, any issues in reversing the blower to reverse the airflow to "suck"?

Quote Originally Posted by Monophoto
I designed my box to be completely enclosed, with a hinged door that one lifts to insert the printing frame. I put a small muffin fan on one corner, and a light-tight vent on the opposite corner to deal with the heat problem - the fan draws air in and it flows out through the vent - but I've noticed that the positive pressure inside the box also forces the door open. Not a problem - just a curiosity.