Beginner’s Guide To 3D Printer Filament

3d-printer-filaments

Welcome to the most in depth beginner guide to 3D printer filament on the internet. This guide covers everything you need to know about 3D printer filament.

There are 13 sections to this guide, and each section gives an overview of the topic. But every section of this guide will lead you to an article with more in depth infromation so you can learn more if you want to.

There’s a lot of ground to cover so let’s get started!


PART 1: 3D Printing Depends On 3D Filament

Filament colors

Most leading market research firms agree with the prediction that the 3D printing market will grow at a staggering rate over the next 5 to 10 years. Exact estimates vary, but most agree that the growth rate of the total value of the market will continue to grow exponentially.

It makes sense. 3D printing offers much more effecient ways of constructing many complex shapes and machines than traditional manufacturing processes.

There is a catch though: it all depends on the 3D filament industry.

Thankfully, the filament industry has boomed over the last decade along with rise of 3D printers. As a result of years of research by engineers around the world, there are now dozens of innovative filaments for almost any application.

What is 3D printer filament?

Filament

3D printer filament are strands of plastic wire that go into a printer’s extruder. The extruder melts and extrudes the filament onto the print bed to form objects.

In comparison to 2D printers, filament basically acts as the ink of your 3D printer, except in three dimensions. There are many different types of 3D filament plastic available at the moment, and new types of filament are created practically every month.

For information about filament and other forms of plastic used in the 3D printing, such as pellets and resins, check out ‘Pellets, Powders, And Other Forms Of Plastic Used In 3D Printing‘ where we go over the other common forms of 3D printing plastic materials.


PART 2: Terms you should know

wordcloud

3D printers are technical machines and they require good quality filaments to produce good quality prints. But how do you evaluate filaments and decide what to buy?

There are certain things to look for when choosing a filament, and 3D printer enthusiasts use a bit of jargon to describe them. It will be important to understand a few basic terms before moving on to the rest of the article.

You can find a complete list of 3D printer terms in our glossary.

You can also check out the Glossary of Terms for a complete list of 3D printing terminology.


PART 3: Types of 3D filament

3D Printed Plastic Objects

As the world of 3D printing grows, more types of filament are coming to market every year. In fact, there are now dozens of types of filament available today.

The selection will only increase as 3D printing finds new applications. There are some very interesting filaments out there, including algae filament by Algix and flexible wood filaments by Lay Filaments. Check out a full list of types of filament in the ‘2019 3D Printer Filament Materials Guide‘ for more information.

What are the most popular types of filament?

source:

Currently, the most popular types of plastic filaments are PLA, ABS, PET, TPU, Nylon, Glow in the Dark, Metal, and Wood. They each have different properties and have different applications.

PLA Filament

PLA is the most popular plastic used in 3D printing and is easy to work with. It is a hard plastic that can be used to print most non-functional plastic objects, such as figurines, jewelry and pencil holders.

ABS Filament

ABS is also very popular. ABS can be used to create parts for machines, toys for kids, and even medical devices. The only major downside to ABS is that it is a bit harder to work with than PLA.

PETG Filament

PETG and Nylon are also growing in popularity. They are both very strong materials and PETG is as easy to print with as PLA.

The fact that PETG has the strength of ABS and ease of PLA, there is a good chance that it will take over as the most popular filament material in the future.

Check out a full list of types of filament in the ‘2019 3D Printer Filament Materials Guide‘.


PART 4: Buying filament

Wood filament

Buying filament is usually a pretty simple process. But figuring out which brand to buy is trickier. There are many ways to find high quality and new types of filament, and not all of them are obvious.

You need to know where to look and what to look for. Here are some things to look out for when buying filament.

What should you look for in a brand?

The main things to look for in a filament brand are filament quality, consistency, and price. These are the three main factors that usually determine whether or not you will have a good experience with a brand’s products.

There are several other qualities to consider as well, though, such as packaging and customer service.

Best Value
HATCHBOX PLA 3D Printer Filament, Dimensional Accuracy +/- 0.03 mm, 1 kg Spool, 1.75 mm, Black
colorFabb nGen Filament, 2.85 mm Diameter/750 g, Black
IC3D Black 1.75mm PLA 3D Printer Filament - 1kg Spool - Dimensional Accuracy +/- 0.05mm - Professional Grade 3D Printing Filament - Made in USA
Proto-pasta CFP11705 The Original Carbon Fiber Spool , PLA 1.75 mm, 500 g , Black
Hatchbox
ColorFabb
IC3D
Proto-Pasta
HATCHBOX PLA 3D Printer Filament, Dimensional Accuracy +/- 0.03 mm, 1 kg Spool, 1.75 mm, Black
colorFabb nGen Filament, 2.85 mm Diameter/750 g, Black
IC3D Black 1.75mm PLA 3D Printer Filament - 1kg Spool - Dimensional Accuracy +/- 0.05mm - Professional Grade 3D Printing Filament - Made in USA
Proto-pasta CFP11705 The Original Carbon Fiber Spool , PLA 1.75 mm, 500 g , Black
1,405 Reviews
12 Reviews
81 Reviews
74 Reviews
from $17.99
$36.99
from $29.99
$29.99
Best Value
HATCHBOX PLA 3D Printer Filament, Dimensional Accuracy +/- 0.03 mm, 1 kg Spool, 1.75 mm, Black
Hatchbox
HATCHBOX PLA 3D Printer Filament, Dimensional Accuracy +/- 0.03 mm, 1 kg Spool, 1.75 mm, Black
1,405 Reviews
from $17.99
colorFabb nGen Filament, 2.85 mm Diameter/750 g, Black
ColorFabb
colorFabb nGen Filament, 2.85 mm Diameter/750 g, Black
12 Reviews
$36.99
IC3D Black 1.75mm PLA 3D Printer Filament - 1kg Spool - Dimensional Accuracy +/- 0.05mm - Professional Grade 3D Printing Filament - Made in USA
IC3D
IC3D Black 1.75mm PLA 3D Printer Filament - 1kg Spool - Dimensional Accuracy +/- 0.05mm - Professional Grade 3D Printing Filament - Made in USA
81 Reviews
from $29.99
Proto-pasta CFP11705 The Original Carbon Fiber Spool , PLA 1.75 mm, 500 g , Black
Proto-Pasta
Proto-pasta CFP11705 The Original Carbon Fiber Spool , PLA 1.75 mm, 500 g , Black
74 Reviews
$29.99

Obviously you want to buy the highest quality filament you can. The quality of filament directly affects the quality of your print. There are tons of cheap Chinese filaments that are very poor quality.

We suggest avoiding them. Otherwise you are bound to spend your time unclogging your extruder and dealing with poor quality prints. 

Cheapest 3D Printer Filament

Hatchbox benchy

Source: selloscope

The price of filament depends loosely on many factors including the quality and source. The reason we say ‘loosely’ is that, at the end of the day, the price is determined mostly by manufacturers and suppliers based on what they think people will buy.

That means you can often find poor quality filament for high prices (like cd-writer.com or Cool Components ), and high quality filament for low prices like (Amphilogic and FormFutura). Check out our list of the cheapest filaments here.

Tolerance

Bad extrusion

Tolerance is probably the single most important factor to look at when evaluating a brand. If a filament has bad tolerances, then it basically unusable.

Watch out for cheap chinese filaments that often have terrible tolerances. These brands are everywhere and many beginners fall for them.

Instead, stick with brands that have incredible tolerances. For instance, Hatchbox offers tolerances as low as +/- 0.01 mm, which means that their tolerances are basically perfect.


PART 5: Homemade filament

a-semi-professional-device-filabot-190123_download-772x705

The irony of buying filament is that plastic waste is everywhere around us these days. Wouldn’t it be great if we could recycle that waste plastic into filament?

With home filament extruders, you can do just that. It takes a little bit of work to learn how to produce usable filament with these machines.

But once you do, you can start recycling plastic bottles, milk jugs, and other commonly available plastic items into filament for your 3d printer. You can also purchase plastic pellets for fraction of the price of filament and extrude them into filament yourself.

Of course, these machines aren’t cheap. A typical filament extruder will cost you anywhere from $500 to $2000. 

But if you plan on doing a lot of printing, then you might want to seriously consider getting one. After all, you would only have to extrude about 50 rolls of filament to recoup the value of investing in $1000 extruder.

Filament extruders

filabot

There several great filament extruders you can buy for your workspace. They each have pros and cons.

The best option currently is probably the filabot extruder simply due to ease of use. But here is a list of other filament extruders worth considering:

Filament winders

filament winder

Another machine that dovetails nicely with filament extruders is filament winders. These machines wind the filament onto a spool at a constant speed as it comes out of the extruder.

One of the hardest parts of extruding your own filament is making sure that you don’t pull too hard on the filament during winding as it comes out of the extruder. Otherwise, your filament will have uneven diameters.

Filament winders make it much easier to exert a constant low level force on warm filament without messing up the tolerance.

How to make 3d printer filament yourself

Once you have all the components, it’s relatively straightforward to make filament yourself.

Check out our guide to making 3D printer filament at home.


PART 6: How to store filament

Wall mounted spool holder

The best way to store filament is is in a storage bin. You can by these plastic storage containers at office supply stores, large department stores like Target and Walmart, as well as some Hardware stores.

Make sure you get storage containers that have air-tight lids to prevent humidity from getting inside.

Also, try to get clear bins if you can so that you can see what filaments are inside without opening it up. It’s not necessary but it makes life a bit easier.

2015-06-19_17.07.56_preview_featuredNext put a desiccant of some kind in the bin. A popular desiccant is a porous bag of rice.

Rice naturally absorbs moisture from its environment. So if you put a few cups of rice in a sock or shoe box and place it in the bin, it will absorb any humidity that gets inside and keep the filament dry.

You can also you silica beads or gel packs.

That’s pretty much all you need to do store most 3D printer filament for the long term. Put it in an airtight bin with a desiccant.

For more information about storing filament and extra tips to make sure your filament stays usable for a long time, check out our guide to 3D printer filament.


PART 7: 3D Printer Filament Accessories

Blue painter's tape

Before you start printing, you can do a few accessories you can pick up that will make your printing experience easier. They save time and frustration, and over the course of several prints, their benefit can compound.

Other than the accessories listed below, most accessories are not strictly necessary for printing, but they are nice to have. Here is a quick list of a few other accessories to consider buying before you start printing.

Click here for a complete list of essential printer filament accessories.

VINCA DCLA-0805 Quality Electronic Digital Vernier Caliper Inch/Metric/Fractions Conversion 0-8 Inch/200 mm Stainless Steel Body Extra Large LCD Screen Auto Off Measuring Tool
Iverntech 1 Spool Acrylic 3D Printer Filament Holder Mount Rack for PLA, ABS, Wood, TPU, Nylon, Flexible Materials
CONDA Palette Knife Painting Stainless Steel Spatula Palette Knife Oil Paint Metal Knives Wood Handle (Red 5 Piece)
BuildTak 3D Printing Build Surface, 6.5" x 6.5" Square, Black (Pack of 3)
Scotch Painter's Tape 2090-48E 07230001245 ScotchBlue Painter's Tape, Multi-Use, 1.88-Inch by 60-Yard, 1 Roll, Width, Blue
VINCA DCLA-0805 Quality Electronic Digital Vernier Caliper Inch/Metric/Fractions Conversion 0-8 Inch/200 mm Stainless Steel Body Extra Large LCD Screen Auto Off Measuring Tool
Iverntech 1 Spool Acrylic 3D Printer Filament Holder Mount Rack for PLA, ABS, Wood, TPU, Nylon, Flexible Materials
CONDA Palette Knife Painting Stainless Steel Spatula Palette Knife Oil Paint Metal Knives Wood Handle (Red 5 Piece)
BuildTak 3D Printing Build Surface, 6.5" x 6.5" Square, Black (Pack of 3)
Scotch Painter's Tape 2090-48E 07230001245 ScotchBlue Painter's Tape, Multi-Use, 1.88-Inch by 60-Yard, 1 Roll, Width, Blue
1,658 Reviews
54 Reviews
157 Reviews
98 Reviews
1,260 Reviews
$28.77
$9.99
$6.89
$19.27
$6.29
VINCA DCLA-0805 Quality Electronic Digital Vernier Caliper Inch/Metric/Fractions Conversion 0-8 Inch/200 mm Stainless Steel Body Extra Large LCD Screen Auto Off Measuring Tool
VINCA DCLA-0805 Quality Electronic Digital Vernier Caliper Inch/Metric/Fractions Conversion 0-8 Inch/200 mm Stainless Steel Body Extra Large LCD Screen Auto Off Measuring Tool
1,658 Reviews
$28.77
Iverntech 1 Spool Acrylic 3D Printer Filament Holder Mount Rack for PLA, ABS, Wood, TPU, Nylon, Flexible Materials
Iverntech 1 Spool Acrylic 3D Printer Filament Holder Mount Rack for PLA, ABS, Wood, TPU, Nylon, Flexible Materials
54 Reviews
$9.99
CONDA Palette Knife Painting Stainless Steel Spatula Palette Knife Oil Paint Metal Knives Wood Handle (Red 5 Piece)
CONDA Palette Knife Painting Stainless Steel Spatula Palette Knife Oil Paint Metal Knives Wood Handle (Red 5 Piece)
157 Reviews
$6.89
BuildTak 3D Printing Build Surface, 6.5" x 6.5" Square, Black (Pack of 3)
BuildTak 3D Printing Build Surface, 6.5" x 6.5" Square, Black (Pack of 3)
98 Reviews
$19.27
Scotch Painter's Tape 2090-48E 07230001245 ScotchBlue Painter's Tape, Multi-Use, 1.88-Inch by 60-Yard, 1 Roll, Width, Blue
Scotch Painter's Tape 2090-48E 07230001245 ScotchBlue Painter's Tape, Multi-Use, 1.88-Inch by 60-Yard, 1 Roll, Width, Blue
1,260 Reviews
$6.29

PART 8: Best 3D printers

low-cost-3d-printer-market-to-generate-more-than-4-billion-in-revenue-by-2021-smartech-predicts-2

Most filaments will work on any FDM 3D printer. On rare occasions, some filaments will print better on specific 3D printers, but that is usually the result of human error or the quality of the 3D printer.

In general, good filament will print well on all good 3d printers if operated correctly. One thing to watch out for are printers that are designed to only use filament cartridges. These printers will only work with a limited range of cartridge filament brands.

Here’s a list of cheap 3D printers for under $300.

Monoprice Select Mini 3D Printer v2 - White With Heated (120 x 120 x 120 mm) Build Plate, Fully Assembled + Free Sample PLA Filament And MicroSD Card Preloaded With Printable 3D Models
Monoprice Maker Select 3D Printer v2 With Large Heated (200 x 200 x180 mm) Build Plate + Free Sample PLA Filament And MicroSD Card Preloaded With Printable 3D Models.
Comgrow Creality Ender 3 3D Printer Aluminum DIY with Resume Print 220x220x250mm
Monoprice Select Mini 3D Printer v2 - White With Heated (120 x 120 x 120 mm) Build Plate, Fully Assembled + Free Sample PLA Filament And MicroSD Card Preloaded With Printable 3D Models
Monoprice Maker Select 3D Printer v2 With Large Heated (200 x 200 x180 mm) Build Plate + Free Sample PLA Filament And MicroSD Card Preloaded With Printable 3D Models.
Comgrow Creality Ender 3 3D Printer Aluminum DIY with Resume Print 220x220x250mm
1,691 Reviews
621 Reviews
568 Reviews
$189.99
$259.99
$229.99
Monoprice Select Mini 3D Printer v2 - White With Heated (120 x 120 x 120 mm) Build Plate, Fully Assembled + Free Sample PLA Filament And MicroSD Card Preloaded With Printable 3D Models
Monoprice Select Mini 3D Printer v2 - White With Heated (120 x 120 x 120 mm) Build Plate, Fully Assembled + Free Sample PLA Filament And MicroSD Card Preloaded With Printable 3D Models
1,691 Reviews
$189.99
Monoprice Maker Select 3D Printer v2 With Large Heated (200 x 200 x180 mm) Build Plate + Free Sample PLA Filament And MicroSD Card Preloaded With Printable 3D Models.
Monoprice Maker Select 3D Printer v2 With Large Heated (200 x 200 x180 mm) Build Plate + Free Sample PLA Filament And MicroSD Card Preloaded With Printable 3D Models.
621 Reviews
$259.99
Comgrow Creality Ender 3 3D Printer Aluminum DIY with Resume Print 220x220x250mm
Comgrow Creality Ender 3 3D Printer Aluminum DIY with Resume Print 220x220x250mm
568 Reviews
$229.99

PART 9: Troubleshooting failed prints

The first step to troubleshooting failed prints is understanding what went wrong. So the goal here is to go through some of the most common reasons prints fail so that, if you are beginner, you cut down the amount of time it takes to find a solution.

There’s no universal way to troubleshoot all print failures becuase all printers are different and all printers are printing in different conditions with different materials. But understanding is the first step to finding a solution.

Clogs

jam-free-image_opt1

Clogs happen all the time in 3D printing. Clogging probably the most common issue 3D printers face.

And they are pain to deal with because so many things cause them: dirty gears, malfunctioning parts, obstructions in the hot end, printer height is too low, etc.

But when they are caused by filament, the problem is usually easier to discover. Here are a few of the most common reasons that 3D filament cause 3D printers to get clogged up.

  • Particles in a specialty composite filament (wood, ceramic, metal) are too big to fit through the nozzle
  • Impurities in the filament itself have either burned up inside the hotend or are obstructing the nozzle.
  • Dirt or dust on the filament has entered the hot end and caused a jam
  • Wood filament has burned up inside the hotend because the printer speed is too slow
  • You didn’t clean out the extruder between spools so old filament is burning inside
  • The momentum of the spool spinning forward has pushed more filament into the melt chamber than your printer can handle and has jammed it up.
  • The filament absorbed too much water
  • And last but not least (say it with me): THE DIAMETER OF THE FILAMENT IS TOO LARGE

Each of these issues has a different solutiont. But hopefully the list above has given you some ideas about what might be causing clogs you experience.

Solution: varies by printer, material, and environment

Warping

Warping

Warping is usually caused by uneven cooling between layers of filament. This happens commonly with ABS, PETG, and other filaments that require a heated printer bed and adhesive materials to keep the bottom of the object stuck to the print plate.

Basically, as middle layers cool, they contract, which pulls on the warm bottom layers that are in contact with the heated printer bed and the warm top layers that were recently extruded. If the force of the this contraction is large enough, the object will bend out of shape.

Solution: better bed adhesion and matching the print speed to the temperature of the print.

Delamination and Layer bonding

Warping

The same process described above can also pull layers apart. But layer bonding issues can have other causes as well.

Some 3D filaments simply don’t have good bonding properties. Flex filaments are a good example.

Other times, delamination occurs because the printer is speed is too slow and the filament isn’t getting deposited on top of the previous layer before it cools. After the previous layer cools, the new layer won’t won’t fuse with it as easily.

Discolorations

degradation

Some brands of filament have discolorations when printed. Discolored patches in object often occur when the colorant used in the filament is poor quality.

However, many discolorations are caused by impurities in the filament and by burned filament. PLA specifically becomes discolored when it absorbs too much moisture. ABS and other plastics can also become discolored when exposed to UV rays and direct sunlight over time.

Fun Fact: The degradation of ABS by UV radiation in direct sunlight led to the discontinuation of it’s use in parts for seat belts in cars.

How to clean out your extruder with cleaning filament41WCIEhwn1L

If you haven’t tried eSUN cleaning filament already, then you are definitely missing out. That stuff is magical.

It will remove gunk from the inside of you printer that you didn’t even know was there. The best part about it is that it is super cheap and super easy to use.

Just push a 10 cm piece of it through your hotend while it is heated to the temperature you will be printing at. Then insert a piece of the material you want to print with and push the cleaning filament out. That’s it.

The cleaning filament will remove almost all dirt. It is far easier than other cleaning methods, like the Atomic pull method (AKA Cold pull or Nylon pull).


PART 12: Post-processing techniques for different materials

Owl 3d print ABS

One of the advantages of making objects yourself with 3D printers is that you can customize them. That includes making sure they look exactly the way you want them to after they are printed.

After all, many objects come off the printer bed with visible layers, rough surfaces, discolorations and other imperfections. With a little touching up you can fix these blemishes and makes your pieces eye-catching.

Check here for a complete list of post-processing techniques for various materials.

Also, check out the list of post-processing solvents for ABS. There are more than you might imagine.


PART 13: The future of filament

Black magic pla

The future of 3D printer filament looks very bright. As the 3D printing industry expands, the filament industry will as well.

Significant resources are being put towards developing new and innovative types of filament that will allow 3D printers to find new applications.

Several types of filament are already making waves in industries that are not traditionally focussed on plastics as a functional material. Architecture firms and other business that rely on rapid prototyping can now create prototypes in-house in just a few hours with PLA and ABS.

Conductive filaments hold strong promise for reshaping the future of the electronics industry. And ceramic filaments could change the way dishware, pottery, and ceramic parts are produced.

black magic carbon

The filament industry is itself undergoing big changes. With the proliferation of cheap filament brands has come massive confusion about the quality of different filament products.

The industry is highly fractured. But large players are emerging, like ColorFabb and Hatchbox. And now that the 3d printing industry is shifting in the direction of multimaterial printing (one printer, multiple extruders) and more specialized materials, we might see some of the smaller filament brands die off.

Moreover, with metal printing, bio printing, food printing and nano printing on the horizon, the filament industry will have to diversify to keep up. Innovative brands like Lay Filaments, owned by Kai Parthy, and Black Magic 3D, owned by Graphene 3D lab, will have to continue to innovate in order to stay relevant.

Meanwhile larger filament brands will continue to hone their manufacturing technologies and large 3D printing companies will likely acquire promising filament brands. These trends could lead to market consolidation.

Hatchbox wood XBOX controller

Perhaps the largest threat to filament companies is the rise of home extruders. Homemade filament is still in its infancy, and home filament extruders still face serious obstacles to widespread adoption.

But as the technology improves and prices come down, personal filament extruders could become the 3D filament source of choice for many, including the most hardcore DIY enthusiasts. Extrude your trash! Recycling trash into filament could become a daily chore for teenagers around world over the next decade.

Whatever happens, the consumer level 3D printing industry will more than double in the next 5 year according market analysts. That bodes well for the filament industry in general.


Final thoughts: beginner’s guide to 3D printer filament

nylon 3d printed butterfly mount

We hope you enjoyed this beginner’s guide to 3D printer filament. We really did try to include everything a beginner would need to know about filament to get started.

Of course, 3D printer filament is such a wide subject that there are bound to be things we missed. If you would like us to include anything else, feel free to leave a comment below.

Happy printing!

Comment (1)

  1. Omar Alnkeeb October 19, 2018 at 5:25 am Reply

    Dear John
    thanks a lot ..its Very important information
    I want to know every new so please send me an email every new
    I am an electrical and electronics engineer working in the field of media. I am interested in marketing these products in Saudi Arabia. I only want to study the idea in cooperation with you … I want to know the new versions of these devices and materials for 3D printers. We study the idea together. In Saudi Arabia I contribute in cooperation with you to find a agent
    My name is Omar Alnskeeb

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