Universal Ventilation Grille – freely parameterizable

Here you see my first parametric model – a fully customizable ventilation grille that can be freely configured in terms of size, depth, slat spacing, and slat angle. I originally needed replacements for two broken ventilation grilles on our garage, but I couldn't find the right size anywhere. Well, 193 mm diameter doesn't seem to be a standard size to me either 😄. But what do I have my 3D printer for...

First, I designed only the size I needed with Fusion.

But then I thought that others might be looking for something similar and that this model would actually be better if it were parametric. So, a good opportunity to get into OpenScad. 😎

A good week later, I am satisfied with the result. I also made two test prints right away, which I find quite successful. You can see them in the photos.

While testing, I was surprised myself how diverse the models are that can be created with the tool.

• Completely normal ventilation grilles for walls
• Or ventilation grilles for furniture - then you choose a very small depth and also rather small and dense slats.
• A grille for a downspout, where leaves are supposed to get caught - then I would set the slats to 85 degrees and adjust for sufficient vertical bracing
• You can make very dense grilles that not even a fly can get through
• Or set very wide slats that wouldn't even keep a mouse out

It's best to just try it out and play with the parameters 🤓.

If you're looking for a grille, also check out my Grid Creator. It can be used to create any rectangular and round grilles.
 

Printing notes:

You should enable standard support structures. Otherwise, a standard profile is sufficient, or you can simply use one of my print profiles.
 

For my last prints, I used a smooth Build Plate, but another one works just as well of course.

If you think that individual parameters should be explained in more detail, please write it in the comments – I will gladly add that. I also considered uploading a few more pre-configured models to the profiles. Feel free to leave a comment about that too.

In any case, I welcome feedback, ideas for improvement, and of course, every boost or comment.