Functional Series

What this series makes easier

This series is not about how a part looks. It is about whether it does its job. A bracket you screw down, a housing you open several times a day, a handle that slots onto a tool, a jig you keep on the bench: the part carries load, and when it breaks your only option is to print it again.

The choice comes down to one question: what will the part meet? A steady force, an occasional impact, or a warm environment? The answer decides both the material and what you will need from your printer.

Which material family to look at

PETG+ — where most of this work starts

The brand describes PETG+ in its own product text: higher mechanical strength and heat performance than PLA, easier to process than ABS, with low shrinkage, strong layer adhesion and chemical resistance.

In the comparison on this site, PETG+ sits at “High” on both ease of printing and mechanical strength. If you want a functional part without giving up much of the easy print, that balance is the reason to start here.

ABS+ — when you need more mechanical strength and heat

ABS has long been used for parts that need mechanical strength and impact resistance, and in the comparison it sits at the top value for mechanical strength. That value reflects the known behaviour of the polymer class, not a laboratory measurement.

The cost shows up on the printer side: the brand’s own printing tip for ABS+ says it allows more stable use in enclosed printers. If your printer is open, staying with PETG+ beats forcing ABS+.

When to look at another series

• The part has to flex, squeeze or spring back → Flexible.
• The part lives outdoors and sees sunlight → High Performance.
• The look is the actual job, as in a presentation model or a display piece → Standard and Specialty are easier to work with. One caveat: PLA generally does not withstand heat as well as PETG, so for something like a closed car in summer, stay here.
• You want a reinforced material → Engineering has a carbon fibre reinforced option.

Practical notes

• Temperature. The ranges the brand states explicitly: PETG+ at 230–260 °C nozzle and 70–90 °C bed, ABS+ at 220–260 °C nozzle and 95–110 °C bed. That bed value is the highest in the catalogue, so plan the first layer around a longer warm-up. For the other types the brand publishes no range; follow the label on the spool.
• Storage. PETG is hygroscopic, and the brand’s product text recommends keeping it away from moisture. Dry a spool that has been left open for a long time before you print with it.
• Surface. Both families here sit at “Medium” for surface options. If you expect silk gloss or a matte texture, you are on the wrong side of the catalogue.
• Diameter. Filament diameter is 1.75 mm across the products in the collection.

Where to start

In the shop you can open the listing filtered to PETG+ or to ABS+. To see the families side by side, the filament comparison puts all four criteria in one table, and the full collection is on the Beta Filament page at 3dteknomarket.