Intake Duct for Controller Cooling Fan

I installed a [controller cooling fan duct](https://www.thingiverse.com/thing:2884268) by [lexaiden](https://www.thingiverse.com/lexaiden) but found that the air pulled in under the heated bed caused problems when printing ABS and PETG. The bed would take too long to recover and the thermal protection would shutdown the print.

To resolve the issue I created this intake duct to match up to the front of the 40 mm fan.

__There are two versions of the duct.__

- Version 1: Tabs align to the