Modular PVC Tube "Air Filter" Assembly Structure for Stackable Filter
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3D model description
I designed this modular system to create a versatile "air filter" that could fit into virtually any PVC round tube section.
The structure has two main benefits:
1. using as little filament as possible, without the need for supports or long printing times;
2. allowing to use any material to act as a proper filter;
The design is modular: one can print-and-stack as many "units" as needed, eventually changing or alternating filter material as per needs.
Modules can be simply assembled separately and then stacked together inside the tube, or the connecting PIN can be scaled up to realize a single, thicker unit.
Modules can also be assembled "continuously" using the PIN Connector which allows two PINs to be joined together, by leaving the respective PIN from each module protruding at the extremities.
Example photos/video shows a standard polyethene air filter being cut and stacked to realize the filter: I needed that kind of filter for my scenario, it is not intended to be a limiting factor on the possible usage.
For tight fits and/or permanent installation, I recommend applying a little dab of superglue at PIN's extremities. They are designed for a tight fit, but if you need to push the whole assembly down a long PVC Tube you might want the extra safety knowing you can pull it out in one piece all the times you need.
In order to assemble a single "module" you will need to print the following:
- 1x Top Cover
- 1x Bottom Cover
- 4x PIN
The Top Cover comes into two styles: one simpler, easy and fast to print, and another a little more complex, called decorative, which resembles a protection grid.
To connect one module to another print also 4x PIN Connector. (please note: they have a very tight fit by design. You may want to file a little bit on the PIN sides to allow a smooth insertion).
Optionally there is a middle layer called "Fan Support" designed to hold a 60mm NOCTUA Fan should you need to force an air flow through the filter. (es. air suction from a chamber trough the filter for purification before releasing to external air)
3D printing settings
PETG is the recommended material and the one used for development and testing. PLA may be enough but I don't recommend it.
Everything is optimized for 0.2mm layer height printing with a standard 0.4mm nozzle.
UIpscaling is possible without issues, extreme downscaling should be avoided due to the tight tolerances. (maybe no less than 85%).
3D printer file information
3D design format: STL Folder details Close
- Publication date: 2021-12-02 at 21:43
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