April 23, 2021
3d printer accessories

The 13 Most Important 3D Printer Accessories For Perfect Prints

So you’ve bought a 3D printer. It’s shiny and brand new, and you’ve just started printing your first models. It comes with a bit of PLA to get you started, but you’re already feeling more ambitious and googling 3D printer accessories to expand your horizons.

ABS? Maybe I’ll try printing flexible filaments like TPU, or Nylon? And how do I make my parts come out looking better? We hear you ask.

Well, there’s a number of ways to augment your printing.

If you just want to print PLA and create basic prints, you absolutely can without many of these fancy extras. However, for anyone who wants to upgrade their 3D printing experience, create better quality models with crisper surface finishes, or print with tougher materials, these 3D printer accessories will get you there.

3D printer accessories for the best quality prints

3D printer filament storage accessories

3d printer filament storage accessories to keep filament dry

Almost all filaments are hygroscopic to various degrees. This means they absorb moisture from the air — making for less than ideal printing conditions.

Moisture deteriorates filament quality, making it bubbly and with a rougher texture. When perfect quality is crucial, such as in precise rapid prototyping or printing intricate miniatures, this can render your filament useless.

Therefore, it’s absolutely essential to keep your filament protected from open air, such as in filament storage. Though filaments like Nylon and Polycarbonate are known for being the most hygroscopic, even PLA deteriorates if left out long enough.

Filament storage containers keep your filament dry until you need to use it. Some even have holes for extruding filament while remaining protected from water vapor in the container. Without this protection from the elements, your prints will look bubbly and grainy.

We recommend the following filament storage:

3D printer accessories for drying filament

filament dryers, a 3d printer accessory for improving filament performance
PrintDry make some of the most widely used filament dryers. Image source: Matterhackers.

As careful as we all try to be, sometimes filament gets exposed to the air for too long and gets “wet”. Fortunately, you can dry filament to bring back its best 3D printing characteristics with a filament dryer.

Filament dryers heat away the moisture that accumulates in filaments, returning them to their original state so you can print the highest quality possible models. They’re specially designed for filaments, though can you can use other heaters if you learn the right amount of time and temperature for your filament.

We recommend the following filament dryers:

Enclosures

enclosure for 3d printing to maintain stable temperatures and prevent warping

For standard PLA 3D printing you’ll be fine, but for tougher filaments like ABS, Nylon and Polycarbonate, a heated enclosure is crucial for temperature control during and after printing, and preventing external factors affecting your part.

Some 3D printers, like the Ultimaker S3 or Dremel 3D45, come with built-in enclosures. But for most 3D printer kits, such as the Creality Ender 3 or the Anycubic Mega-S, their open build areas make printing filaments like ABS more difficult.

When printing these filaments that require such high temperatures, layers can cool too rapidly, leading to cracks and splits in your part’s mid-section. An enclosure remedies this problem, mediating the temperature and preventing cracking or excess warping from sudden temperature changes.

We recommend the following enclosures:

See also: the best enclosed 3D printers.

Build surfaces

Some 3D printers ship with glass print beds that make PLA printing easier, but in general, if you don’t use a bed surface, you’ll find your parts stick and leave marks on the print bed. They may even remove chunks from some beds if they’ve bonded with the print bed material while cooling.

3d printer build surface accessories

Beyond this, bed surfaces are crucial for good adhesion, creating strong and durable parts that don’t fail.

But different build surfaces suit different filaments best. These are the build surfaces we recommend for each filament:

PLA — works well with Kapton tape or blue painter’s tape, standard glue or hairspray, specialized adhesives like Magigoo, PEI sheets such as Buildtak.

ABS — Kapton tape, ABS slurry / juice, Magigoo, Buildtak.

PETG — Magigoo, PEI sheets such as Buildtak, blue painter’s tape.

Nylon — LayerLock Garolite, PEI sheets.

TPU / flexibles — PEI sheets, blue builder’s tape with glue stick.

We recommend the following here

3D printer removal and finishing tools

Print removal tools

With the high heats used during printing, naturally the plastics used will stick to your print bed when cooling down.

Most 3D printers now come with a basic spatula-type tool, but especially on cheaper 3D printers they are not as effective as specialized 3D printer accessories for removing prints. 

3d print removal tool accessory

Less effective tools may damage sides or bottom of the print when removing it. 

Investing in a premium 3D print removal tool can therefore pay dividends, cleanly removing parts with minimal damage.

We recommend the following 3D printer removal tools:

Support removal tools

Any parts with overhangs or steep geometries wider than 45 degrees will succumb to the forces of gravity if left unaided. Luckily for you however, your 3D slicer software can generate supports for you that will keep your model in proportion while it prints.

support removal tools
Support removal tools. Image source: i.materialise.

Once finished however, those supports are a no longer useful, just a nuisance. So if you’re printing geometrically complex prints with on an FDM or resin 3D printer, you’ll need an effective 3D printer support removal tool to remove those supports with the least damage or visible remnants possible.

The best 3D printer accessories for removing supports are precise, powerful enough to cut cleanly to avoid damage to the model, and light enough to be handled with ease. Pliers and clippers do this job well, but just in case a support flies off and hits your eye, make sure you wear eye protection.

We recommend the following:

3D print finishing accessories

Now you’ve removed the supports, you’ve got an almost-perfect part ready to go. Unfortunately, there’s still some tiny imperfections from removing the supports.

smooth abs with acetone
A smoothed ABS print next to the original, by using acetone.

No worries — this can be easily remedied. One way of post-processing parts is sanding them down so they’re smooth and cleaned up. Different sandpapers create different finishes.

For ABS, a simple way of smoothing is by using acetone. Do your research before attempting to smooth ABS or ASA however, as it can be dangerous. Do it correctly however and your ABS parts will come out looking shiny and glossy.

For PLA it’s more difficult, but if you carefully sand your model and then heat or spray it, you can create shiny PLA parts. You can also add polish.

We recommend the following:

Paints for finishing prints

Painting your models is the funnest part for any hobbyist looking to 3D print miniatures, 3D character designs or for professionals creating color prototypes.

But it’s not as simple as just picking up your paints and getting started — at least not if you want beautifully-colored models with even coats and smooth edges.

Before even painting, make sure you’ve sanded down your model so it’s as smooth as you can make it without large layer lines that would make for uneven painting. 

You’ll also need a primer for filling in any remaining small gaps, likely multiple coats. 

The easiest way overall to paint your 3D prints is by spray painting with your part suspended in the air on a small string, but failing that you can spray each face with your model sitting on a surface. If you’re only coloring one side, just having it facing towards you can work fine.

For 3D printed miniatures like D&D or 28mm miniature-style models or prototypes that require precision you can only get from hand painting, use acrylic paints. These should work fine on any PLA, PETG or ABS print. Coat several times with very thin coats and be very careful to avoid blobs of paint in any areas.

If you’re 3D printing Nylon, its hygroscopy means it’s best to dye it. Matterhackers personally recommend and have shown Rit DyeMore to work well with Nylon, and print with light-colored (preferably white) nylon filament to get the best results. 

See also: our buyer’s guide for the best 3D printers for miniatures.

Gluing prints

Thankfully this one’s pretty simple. Standard superglue works well for attaching PLA, ABS and PETG parts together with ease.

However, you can’t use it with TPU or other elastic filaments. For flexible filaments, your only real choice is to use a 3D pen as a hybrid solderer to stick prints together.

Not only can ABS, ASA and HIPS be polished using acetone, but they can also be glued together with it. 

See also: our ranking of the best 3D pens

Other useful 3D printer accessories

3D scanner — useful 3D printer accessory for scanning models

For those who like taking advantage of the free 3D printer files available online via Thingiverse or the other range of sites online, this may not appeal to you.

3d scanners, a 3d printer accessory for scanning models

But for makers looking to scan and replicate objects, or scan their faces, bodies, rooms, cars, pets, and various other things, 3D scanners offer fantastic precision even at good prices.

There are different 3D scanner types for different uses. Handheld 3D scanners are great for larger objects like for scanning people, whereas stationery 3D scanners scan still objects with fantastic detail. For owners of smartphones such as the latest iPhones and Android phones with 3D depth sensors, you can even create (very basic) scans using 3D scanning apps.

Lower priced handheld scanners struggle with accuracy, but cheaper stationery 3D scanners can scan still objects with great detail.

We recommend the following:

See also: our buyer’s guide for 3D scanners in every price range

Digital caliper — useful 3D printer accessory for measuring precise parts

If you’re just planning on 3D printing cool things you’ve downloaded from Thingiverse for fun, you don’t need to worry about having a caliper.

But for precise prints, especially when multiple pieces need to fit together, or for measuring steps across each axis, having good quality calipers to hand will make your life much easier.

We recommend the following:

Nozzle cleaning kit

Even with easier to print materials like PLA your nozzle can clog and jam, and you’ll need to work on it to be able to use it again. 

There are a variety of different kits and specialist tools which can help with this.

We recommend the following:

Spares: 3D printer accessories for when parts wear out

Unfortunately, things in life are not infinitely durable — and with sustained use, parts start breaking.

Nozzles especially can wear out quickly, particularly if using standard brass nozzles rather than tougher hardened steel or ruby-tipped nozzles.

You may also want to upgrade to a more powerful extruder / hot end , such as one by E3D, or switch out your print bed.

See also: our buyer’s guide for 3D printer extruders

See also: our buyer’s guide for nozzles and for hot ends