4in Motorized Duct Damper - Tent Air Intake

thingiverse

https://www.instagram.com/p/C0u30EuJo_m/https://www.youtube.com/shorts/Mp0SsjA2qIYNeeded a way to turn on and off the air intake for a tent, to prevent higher temps while lights are on, but close at night to keep cooler air out, or in towards the end of a season so that fall colors can be achieved.Work in progress, wasn't even sure it was going to turn, it does. What it needs now is a solid method of detecting how much it's open, or at the very least if it's open or closed.It's fairly simple to use with home assistant through a raspberry pi or similar, designed around 5V.Edit - Added a bigger gear with magnet holes, and a slot in the back for a hall effect sensor, waiting on some parts for testing and shall refine.Might also be a good starting point for curing chambers or mushroom cultivation. Reasonable easy to tear down and alcohol where needed depending on what's used to print.https://www.youtube.com/shorts/Ht6KGuaIDOMBearing is a 625ZZ (grab some from an tired V wheel)ULN2003 Stepper Motor Drive Module + 28BYJ-48 DC 5V Stepper Motor2-5mm hardware