3mm vs 1.75mm Filament

Updated: Dec 21, 2023 7:47 PM
3mm vs 1.75 mm filament

You may be interested in 3D printing, especially since, in recent years, it’s become much more affordable and available to general consumers. However, selecting the best 3D printers can prove to be a difficult task. The reason is that choosing the best printer takes a lot of knowledge. When comparing 3mm and 1.75 mm filament, the main difference is the diameter of the filament, which allows for finer details when painting.

Key Takeaways_

  • Printer filament is the substance used to create 3D objects; it comes in various sizes and materials.
  • A 1.75mm filament is standard for hobbyists, as it fits smaller machines and is available in more materials.
  • A 3mm diameter filament is more common in larger industrial machines and is made with heightened durability.

Understanding the various printer types is one of the essential steps in selecting a printer, and we have tons of resources on them. In addition, we have some comparing layer height vs nozzle diameter with 3D printers and yet another about Bowden vs direct drive filament extruders.

insider tip

Always read the printer’s user manual to ensure you use the correct filament diameter.

Differences Between 1.75mm vs 3 mm Filament

The filament is the material used in FDM (fused deposition modeling) devices, one of the most affordable, common types of 3D printers. The filament is usually a plastic substance and is the material that’s layered on the printer’s build plate to create an object.

So why would the size of the filament even matter? It matters a great deal because it helps determine the object’s overall quality and the time it takes to print. And, of course, these things determine the overall cost of production.

The 1.75mm filament is the standard size used in FDM printing currently. 3mm used to be the standard, but as the technology has improved, 1.75mm has taken over.

However, 3mm is also a very common filament used in 3D print communities, but it’s considered a higher durability substance and is usually used for larger industrial machines.

The first thing to remember when choosing a filament is to consult your 3D printer manufacturer. They may specify which size to use, which should always be the size you stick with. Otherwise, you can choose based on your needs.

If you finish this and want to continue learning, we have more comparison articles, like our guide explaining 32-bit vs 8-bit 3D printers.


Choosing a filament for print quality always depends on your situation. Those looking for durability should go with a 3mm filament, given it is more flexible and usually has greater heat resistance.

3mm filament is more rigid, so it is easier to print with flexible filaments as the extra diameter helps with being more resistant to bending.

However, even though 1.75mm filament may bend more easily, it doesn’t take as much pressure to push through the extruder.


Always store your filament in a dry area, as it can attract moisture and spoil.


For finer details, 1.75mm filament works better because it gives the printer more control over the amount of filament that comes out of the nozzle. Because of this, it lets printers create objects in greater resolutions.

Print Time

The most significant difference between thinner and thicker filaments is “flow time.” Thinner filament melts much quicker, so 1.75mm filament will lead to speedier print times than 3mm.

STAT: 1.75mm will print around 60% faster than 3mm filament. (source)

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