3DMart's latest exclusive test is here! Last time, we shared the Sinterit flexible eyeglass frames using SLS technology (Further reading: "Powder" for Super Elastic Swim Goggles!). So, how does TPU material fare with FDM? We couldn't resist testing it for you first. Let's take a look at its performance after completion:
The original 3D model was very cool. A link will be provided at the end of the article for you to test it yourself.
This time, we used TPU with PVA. Although Ultimaker's official data does not recommend using these two materials together, 3DMart decided to be the first to try this approach. This test used the Ultimaker S5 for 3D printing with very fine default parameters. The dual-nozzle system can print two different materials at once, and supports are automatically generated without the need for manual creation.
This time, a lattice-like support structure was used. The white part in the image is the PVA, which dissolves in water, and the black part is the TPU body of the glasses frame.
After more than a day of printing, it's finally complete! Next, it's placed in water to soak until the PVA is completely dissolved. Although regular cold water works, for larger objects, we use an aerator in the water tank, which significantly speeds up the dissolution process.
This 3D printed TPU flexible eyeglass frame, with PVA supports dissolved, is finally complete. Compared to supports that are removed by breaking them off, the surface is much cleaner and more beautiful.
Industrial-grade TPU 95A (thermoplastic polyurethane) filament has properties between rubber and plastic, offering semi-flexibility and chemical resistance with strong mechanical properties. Additionally, it is easier and faster to 3D print compared to other TPU materials.
If you need a flexible material 3D printing prototype, TPU 95A filament offers another quick and excellent option. To learn more about tips for 3D printing with TPU 95A, you can refer to this link.
Want to know more about 3D printing tests? Stay tuned to the 3DMart official website and Facebook page. We will continue to provide you with 3D printing information and tests. We previously shared another Sinterit eyeglass frame using SLS technology, which you can also compare!
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File source: https://grabcad.com/library/water-goggles-1