Jump to content
Ultimaker Community of 3D Printing Experts
DGTalic

What material to use?

Recommended Posts

Hi. I need to create and print an object that will be in water for very long periods of time. Residual waters. It is basically a mesh that holds together a sponge that acts as a water filter. Any suggestions on what material to use? Would PLA work just fine? See image attached.

IMG_0505.thumb.JPG.791493b4bb85b666859d0e2ccc69e0bf.JPG

IMG_0504.thumb.JPG.dea8454e4230e13f6cff1102ab80fcc8.JPG

Many thanks in advance.

IMG_0505.thumb.JPG.791493b4bb85b666859d0e2ccc69e0bf.JPG

IMG_0504.thumb.JPG.dea8454e4230e13f6cff1102ab80fcc8.JPG

Share this post


Link to post
Share on other sites

I would avoid PLA as it is biodegradable. Maybe it is ok in distilled water. The best are all oil based plastics which can last for decades or 100-1000 years in water.

But all plastics do absorb water to a degree, but in your case it should not matter much. I would avoid nylon. HDPE/PET are commonly used in water storage containers, but ABS should work just fine for your purpose.

Share this post


Link to post
Share on other sites

PLA does get dull and brittle. Out of curiosity, I tried a filter in the waste water syphon of my lab. It took a year or so, and it still functioned, but you could clearly see the dullness and color change (more pale, white-ish). So there is some degradation going on.

I haven't tried any other materials, but I would guess that PET or its derivatives are worth a try. They are used for lots of drink bottles anyway.

If you select a water-clear filament, you can easier see what is going on inside the material (e.g. color changes).

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

  • Our picks

    • Taking Advantage of DfAM
      This is a statement that’s often made about AM/3DP. I'll focus on the way DfAM can take advantage of some of the unique capabilities that AM and 3DP have to offer. I personally think that the use of AM/3DP for light-weighting is one of it’s most exciting possibilities and one that could play a key part in the sustainability of design and manufacturing in the future.
        • Like
      • 3 replies
×

Important Information

Welcome to the Ultimaker Community of 3D printing experts. Visit the following links to read more about our Terms of Use or our Privacy Policy. Thank you!