We continue to analyze PETG filaments, and today we try a particular one, the transparent PETG FiloAlfa. It can have the same characteristics of strength and resistance as ABS, but it is much easier to print.
ABS has its own problems, especially warping and delamination, which is why it needs a closed printing chamber. PETG is not immune to problems, in fact it suffers a bit ‘of stringing, but in general as a printing difficulty is much more similar to the PLA.
I finally managed to try this filament, I’m full of expectations because many of my friends use it with satisfaction and I’ve heard about it very well. Expectations when they are too high are hardly met, I hope it is an exception this time. This filament was sent to us in a test package directly from the manufacturer. Let’s see what I can do!
PETG FiloAlfa: Test
This filament is completely transparent, reminiscent of another transparent PETG, Nextotum, in shape and consistency.
This memory reminded me of the various tests already done and how a filament like that can most likely give its best only if printed in a single layer, to simulate the glass. As you can see in the image next to the transparent filaments, but not only! Even the translucent ones have the defect that when printing a “concrete” object they allow to see the texture of the infill.
Also this time I decided to make the test print with a vase, but since the amount of material is large enough I want to make a real object of furniture. The vase you can see in the picture is 22 cm high and 18 cm wide.
PETG FiloAlfa: Print Settings
This filament was printed at 220 degrees, 50 mm/sec. And the heated plate, perhaps avoidable, set to 55°.
At first, given the specifications of the house I started with 230 °. The extrusion of the material was so fluid that I wanted to try to lower the temperature by 5 degrees. Even at 225° the filament came out evenly. The advantage of being able to lower even a little the temperature is to avoid the problem of stringing, even just 5 ° can make a difference.
PETG FiloAlfa: Conclusions
This filament, as you can see from the photos has an excellent level of gloss, transparency and although it is composed of a single layer I found a considerable hardness and rigidity. Given also the typical resistance of PETG this material is also usable for the creation of lampshades, lamps, also connected to the lithophany.
This filament will surely “shine” if used for lithophanies. Through the Filoalfa website you can also buy 250g reels. Excellent size to try this material thoroughly and fall in love with it!