Google Fan Filter Challenge

This is my submission for the Google Fan Filter Challenge at the Midwest RepRap Festival. It is designed to hold a filter cut to the exact size of the fan at a 45 degree angle to the fan itself. This should make it easy to insert and remove. It also only has 3 mount points to make one side open for insertion. If the fan is mounted squarely then the filter will be inserted a a diagonal.

This can be customized via the customizer if your fans are a different size, or you need more depth for the