this post was submitted on 04 Nov 2024
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cross-posted from: https://lemmy.world/post/21641314

I'm designing a case for a dew-point ventilator controller to be 3d printed. The controller is implemented using arduino on an esp32. The project is based off of the code and HW implementation by Make Magazine Germany: https://github.com/MakeMagazinDE/Taupunktluefter. When starting out I was thinking this would be an easy project but it turned out that especially the lid with its lip and groove design and the parts fixations were not that easy. I'm excited to finally print it.

The file is parametric to some extent and the main footprint is based off of a master sketch. Many parts were imported as step files from grabcad. I used FreeCAD 1.0-rc1 which works like a charm for many things. Next thing I would like to do is to use the new assembly workbench. What do you think?

Manual "Exploded view",

Opaque view.

EDIT: I didn't mention the most important part. The device switches on a ventilator when the absolute moisture content outside is lower than inside a a certain room. This results in drying of the room that you ventilate like a basement with moisture issues. The dew-point acts as a proxy for measuring absolute moisture content.

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[–] callcc@lemmy.world 17 points 1 week ago (2 children)

Hah, I didn't mention the most important part. It basically switches on a ventilator when the absolute moisture content outside is lower than inside. This results in drying of the room that you ventilate like a basement with moisture issues. The dew-point acts as a proxy for measuring absolute moisture content.

[–] grue@lemmy.world 18 points 1 week ago* (last edited 1 week ago) (1 children)

Thank you for making the case for a dew-point ventilator.

[–] callcc@lemmy.world 7 points 1 week ago (1 children)

Damn, it took me a while to get this joke. Well done! :D

[–] grue@lemmy.world 5 points 1 week ago

(☞゚ヮ゚)☞

[–] NOT_RICK@lemmy.world 9 points 1 week ago (1 children)

Ah instead of running a dehumidifier 24/7 like some people I know, makes sense

[–] callcc@lemmy.world 3 points 1 week ago

Yup. It's not as loud and less energy intensive usually.