Types of Filament: PLA, ABS, PETG, and More
After testing over 20 types of filament in our DunaTech workshop, we’ve identified which ones are best suited for different applications:
– **PLA:** Perfect for beginners and decorative pieces. Easy to print but doesn’t withstand high temperatures or impacts. In our tests with budget PLA from AliExpress, we noticed some models produce more stringing, so always check seller reviews.
– **ABS:** Great for functional parts due to its mechanical strength. However, it requires a heated bed and can release unpleasant odors. We use eSun brand ABS in enclosed printers to avoid warping.
– **PETG:** Combines the best of PLA and ABS: good mechanical strength and ease of printing. It’s ideal for parts that need water resistance. Polymaker PETG delivered consistent results in over 50 hours of printing.
– **TPU:** For flexible parts like cases or gaskets. It’s tricky to print if your extruder isn’t prepared. In our experience, Sunlu TPU worked best at low speeds.
Key Factors to Consider Before Buying
When choosing filament, I always evaluate these aspects to avoid issues:
1. **Diameter and Tolerance:** Most printers use 1.75 mm filament, but ensure the tolerance is ±0.03 mm or better. Filaments with higher tolerances tend to clog the extruder.
2. **Spool Quality:** Watch out for poorly wound spools; they can cause tangles that ruin long prints. At DunaTech, we found tangling problems to be common with unknown brands.
3. **Printing Temperature:** If your printer can’t reach 250°C, avoid materials like ABS or Nylon. Always check the filament’s specifications.
4. **Moisture:** Filaments like PLA and TPU absorb moisture quickly. Use a filament dryer like Sovol to prevent bubbles during printing. If you’re unsure how to use one, check out our complete guide here.
Best Filament Brands in 2026
In my tests, these brands stood out:
– **eSun:** A classic in the 3D printing world. Their PLA+ filaments have good strength and vibrant colors.
– **Polymaker:** Excellent for demanding projects. Their PETG gave us trouble-free results in 100-hour tests.
– **Sunlu:** Ideal for beginners. Their TPU is among the easiest to work with.
– **Prusament:** If you’re looking for premium quality, this brand is outstanding. Their PLA has impeccable tolerance.
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Common Problems and How to Fix Them
While working with 3D printers in the workshop, I frequently encountered these issues:
– **Stringing (thin threads):** This happens with moisture-sensitive filaments like PLA. Use a filament dryer (learn more here) and adjust retraction settings in your slicer.
– **Clogs in the Extruder:** Cheap filaments often have inconsistent tolerances. Switch to a better filament and clean the nozzle with a needle system.
– **Warping:** Very common with ABS. Use a heated bed and apply an adhesive like Magigoo to improve adhesion.
FAQ: Frequently Asked Questions
Which filament is best for beginners?
PLA is ideal for getting started. It’s affordable, easy to print, and works well in almost any printer.
Why does my filament create bubbles while printing?
This happens when the filament absorbs moisture. Use a filament dryer like Sovol to remove it before printing.
How long does a spool of filament last?
A 1 kg spool can last between 50 and 100 hours of printing, depending on your part density.
Conclusion
Choosing the right filament can make the difference between a successful print and hours of frustration. In my tests, I always prioritize quality over price and recommend using tools like filament dryers to maximize results. If you have questions about brands or want to know more, leave your inquiries in the comments.
— The DunaTech Team