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The Best 3d printing pen with usb of 2023 – Reviewed and Top Rated

After hours researching and comparing all models on the market, we find out the Best 3d printing pen with usb of 2023. Check our ranking below.

2,574 Reviews Scanned

Rank No. #1

MYNT3D Basic 3D Pen [New for 2020] 1.75mm ABS and PLA Compatible 3D Printing Pen, Black

The Basic 3D pen offers a user friendly entry into the world of 3D art for those not needing advanced features
Compatible with the same widely available and inexpensive ABS and PLA that 3D printers use
Extrude in slow, medium or fast speeds to create intricate designs or fill in large spaces
Sealed nozzle and overbuilt gearbox ensure clog free operation
Requires common USB AC adapter with at least 2A or 2000mA of power

SaleRank No. #2

Aenllosi Storage Case Compatible with 3Doodler Start+ Essentials (2023) 3D Pen,Holders for 3D Printing Filament Refill Pack and USB Cable(Only Case,Mint)

3D pen case is designed for 3d doodler pen pack, the customized inner tray can store and protect your 3d pens for kids ages 10-12 very well.
Comfortable and sturdy carrying straps allow you to easily carry your 3d pen for kids anywhere you go, and you don't have to worry about your 3d pen for kids ages 8-10 getting damaged from carrying it or losing your 3doodler refill packs loose. In short, this case will provide a safe and protective environment for your 3d printing pen for kids.
Your 3doodler 3d printing pen life expectancy will be prolonged thanks to the lightly waterproof, heat resistant and dust proof kids 3d pen case.
Built-in mesh pockets allow you to easily carry more 3d doodler pen refills and can add more fun to your trip. The smooth zipper makes it easy to access and use your 3doodler start+ pen at any time.
Package includes a hard case, not including the 3doodler start kids 3d printer pen and 3d printing refill packs. Store offers a lifetime warranty on the hard case, so feel free to contact us if there is a problem.

Rank No. #3

Leayjeen Hard Carrying Case Compatible with MYNT3D Professional 3D Printing Pen and Accessories, Girls & Boys Home Art Activity Set (Case Only) -Pink

【Perfect Fit】Specially designed to 3D printing pen case for MYNT3D, SCRIB3D professional kids 3D printing pen and basic accessories. They are a perfect match. Keep the kid 3D printing pen in a safe place.
【Premium Material】The exterior is made of sturdy PVC hard blue case, allowing the 3D printing pen, as well as 3D pen filament, 3D pen refill and other small tools, to be stored safely. High-quality zipper, pulls smoothly and won't get stuck.
【Safety】The soft cushion inside provides double protection for the 3D printing pen, protecting the 3D printing pen from scratches, dust and collisions. At the same time, it also has a certain waterproof function, which provides sufficient protection for the 3D printing pen.
【Portable】There is a fixed elastic band inside, which can fix the 3D printing pen from impact and drop. The mesh belt design of the 3D printing pencil case can be effectively classified and stored,Safely placing 3D printer pen, 3D printer pen refills.It is convenient for you to carry when you travel.
【Surprise】We randomly put some small gifts in the case. It may be a dinosaur toy, it may be a small toy dog, or it may be something else. No one knows what it is unless you open it.

SaleRank No. #4

MYNT3D Junior2 3D Pen for Kids [2020 Model] Child Safe Low Temperature Printing Pen (NOT Compatible with ABS/PLA)

3D Pen designed specifically for kids, with easy to grasp ergonomic design and low temperature nozzle that wont burn young hands
Watch your young artists, architects or builders imagination grow off the paper in 3D
Junior2 is updated with the same sealed nozzle design as more advanced MYNT3D pens to stop clogs and provide countless hours of enjoyment and learning
Battery powered, charges with Micro USB (note: AC adapter not included) works with kid safe low temp 1.75mm PCL filament (not compatible with ABS or PLA)
Includes 3D pen, user manual, 3 rolls of MYNT3D PCL plastic, starter stencils and USB cable

Rank No. #5

Mchoi Shockproof Carrying Case Suitable for 3Doodler Start+ Essentials (2023) 3D Pen Set for Kids, Organizer Holders for 3D Printing Pen, Plastic Refill Blister and USB Charger, Case Only

3Doodler Case Fits: Perfectly adapted to 3Doodler Start+ Essentials (2021) 3D Pen for kids.
This 3D Printer Pen Storage Holder External Dimension: 6.6*2.3*2.6inches.
3D Doodler Pen Case Material: 3Doodler Start+ Essentials (2021) 3D Pen is made of high-quality EVA material. The hard 3d pen carrying case will protect your mynt3d 3d pen container from bumps dents and scratches.
Hard Shell Case Portability: The built-in mesh pocket can hold all 3doodler refills, micro-USB charger and accessories. the 3d pen protective carrying case features a durable and reinforced handle for easy carrying, you can take it on the go effortlessly. Ideal for storage, travel and carry.
After-sale Service: Only the 3Doodler Start Essentials 3D Pen empty case is sold, the 3Doodler Start+ Essentials 3D pen and accessories are not included. If you are not satisfied with the products you received, please let us know. We will solve the problem for you as soon as possible.

Rank No. #6

USB POWERED SOLDERING IRON / 3D PRINT FINISHING TOOL

Rank No. #7

3D Pen Filament 320 Feet, 10 Colors, Each Color 32 Feet, Glow in The Dark PLA Filament Pack - 1.75mm 3D Pen Filament Refills, Suitable for 3D Printing Pens and 3D Printers

💕[10 COLORS Fluorescent PACK] 10 Pack fluorescent 3D pen filament, comes with 10 colors glow in the dark filament for producing various creative 3D work, makes your beautiful art shines in the dark. Each Color 32 Feet, Total 328 Feet Lengths, 3 Finger Caps also included for protection
💕[SAFE PLA MATERIAL] 3D pen PLA filament refills made of high quality PLA material, which is biodegradable and eco-friendly, odorless, smokeless and non-toxic. Since it's considered safe for children when printed, our 3D pen PLA filament 1.75mm is a clear choice for kids
💕[FIT MOST 3D PENS] Our 3D pen filament is compatible with most 1.75mm 3D Pens in the market except 3.0mm 3D doodler, Diameter: 1.75mm,tolerance within:+/-0.02mm; Printing Temperature: 338-374℉（180℃-210℃）
💕[SMOOTHER PRINTING] 3D pen PLA filament refills made of Premium material, provides maximum smooth performance and ensures no bubbles, no plugging, no oily residues or breaks, no clogging printing. Our PLA filament 1.75mm for 3D pen keeps producing bright lines and colors
💕[100% SATISFACTION] Hassle-Free Returns with 100% Money Back Guarantee & 24-hour response service. We stand behind every item we sell and want you to be truly delighted with your purchase. If you are not 100% satisfied with your purchase, please send email to us

Rank No. #8

2 Pcs 3.9ft USB Charger Cable Compatible with Nintendo 3DS/ 2DS, Play and Charge Charging Cord Compatible with Nintendo New 3DS XL/ New 3DS/ New 2DS XL/ New 2DS/ 2DS XL/ 2DS/ DSi/ DSi XL with 2 Stylus

✔ COMPATIBILITY: Compatible with 2DS/ 3DS/ 3DS XL/ New 3DS/ DSi/ DSi XL/ NDSI/ NDSI LL/ 3DS LL. NOT compatible with Nintendo DS and DS Lite.
✔ PLAY & CHARGE: Extra long 3.9ft cable allow you to Play and Charge at the same time, make it easy for you to stay in the game, provide you great convenience.
✔ GREAT 2 PACK: 2 Pack gives you peace of mind just in case the one is lost, 3.9ft charging cable gives you more room between the charger and yourself when you play.
✔ EASY TO USE: Can be used at home, in the office or on the move, anywhere you can access a USB socket for charging your Nintendo gaming devices.
✔ WHAT YOU GET: 2 x 3.9ft USB Charger Cable Compatible with Nintendo 3DS/ 2DS/ DSi, 2 x Stylus Pen/ Bonus for you (❗ NOTE: The Bonus stylus is compatible with all the listed console, but the length of the stylus is different, also the diameter of the stylus is different, it can be inserted into the storage slot of the console, but it can not be completely inserted. Please kindly be noted.). Backed by a 1-year limited warranty, please buy with confidence!

Rank No. #9

3D Illusion Platform Night Lighting Touch Botton 7 Color Change Decor LED Lamp

Powered by universal USB cable which allow you to light up the fantacy light more easily
Fully color customizable by button with 7 colors display(as show in the pictures). Perfect for home decor, play room, man cave, office, kids room décor.

Rank No. #10

ANKHOH Case Compatible with 3Doodler Start+ Essentials (2023) for 3D Pen Set for Kids, Storage Organizer Holder for Printing Filament Refill and Micro-USB Charger, Pink-Bag Only

Case for 3d pen storage for kids perfect fit: Customized box for 3Doodler start+ essentials (2023) for 3D pen set for kids also fits for 3Doodler Start for 3D printing filament refill blister pack, storage case for 3d pens for kids ages 10-12, Color in green match with for 3D printing pen for 3doodler, simple and good looking. External size: 7*3.9*3.25 in (For sale is the bag only, not for 3d pens and accessories included)
All round protection box for 3d pen for kids ages 8-10: for 3d printing pen case made of high quality hard material which is shock proof and drop-resistance, protect the pen pack for 3doodler from any damages, water proof and dust proof can keep for 3D pens for kids dry and clean in daily use.
Reasonable design case for 3d pen accessories：The storage box for 3D pen and filament with smooth zipper makes it easy on opening and closing for kids' electronics pen, inner mesh bag can expand the storage space for collecting the start refill packs for 3doodler and the micro USB cable, easier to find and use and not easily to miss any part for 3d printing accessories.
Case Tight fit for 3doodler create for 3d printing pen set: Storage holder for 3doodler starter essentials for 3d pen set for kids with customized grooved base makes totally fits for 3d pen, and two elastic bands can hold for 3D printer tools tightly on its place, won’t move and shaking which can effectively protect for 3doodler start pen in different occasions on traveling.
Portable and compact storage bag for 3D kids pencil: case for 3d art pen come with a detachable hand strap enables to bring to school, kid’s birthday party or to travel, can start creation through the art pen for 3doodler anywhere anytime, children’s creation and inspiration won’t be limited by location or time, The holder for 3D drawing pen is the best gift ideas for 11 year old boys and girls, can be sent to your kids for Christmas, birthday or children’s day gift.

Rank No. #11

MYNT3D Professional Printing 3D Pen with OLED Display

Watch imagination come to life with the Professional 3D Pen
Adjustable feed lets you regulate speed & flow for optimal control of material while you're drawing
Temperature is adjustable in 1 degree increments from 140 to 230 C, for optimal fine-tuning
Large, OLED display lets you monitor temperature of material to help you achieve a wide variety of effects
Kit includes 3 colors of PLA plastic filament, A/C adapter and slim, ergonomic pen with 1 year limited warranty

Rank No. #12

MYNT3D Super 3D Pen, 1.75mm ABS and PLA Compatible 3D Printing Pen & 3D Pen Mat Kit, DesignPad + FreePad,Black

Product 1: Turn your ordinary drawings into 3D works of art
Product 1: Stepless speed slider lets you regulate flow
Product 1: New: ultrasonic sealed nozzle is nearly clog-proof and provides market leading durability
Product 1: The Super 3D Printing Pen is great for kids, artists and engineers of all ages
Product 2: Three different drawing surfaces to help bring your imagination to life

Rank No. #13

Luckbanjie 17'' Nezuko Backpack Tanjiro Anime School Book Bag Latop Backpacks (Pink-A)

High quality material: Anime character nezuko's demon slayer school backpack is made of polyester, is durable and does not fade.
Large storage: Size of the nezuko backpack: 11.4x5.5x16.9 inches /29x14x43cm (LxWxH), weight 1.65lb / 0.75kg, capacity: 18l. A large capacity anime backpack can hold laptops up to 15 inches.
Convenient: The external usb port with a built-in charging cable offers convenient charging for your cell phone or listening to music without opening the backpack. A variety of pockets in the ''demon slayer'' backpack can make it more convenient to arrange travel items.
Ergonomic and comfortable design: The nezuko backpack for teens is ergonomic, the straps are adjustable and removable. You can adjust its length to fit your height and body. Relieve pressure on the shoulder and back cushion with highly permeable material.
Many occasions: The demon slayer school pack is perfect for girls, boys and teens. Backpacks are suitable for people age 12+ .Multifunctional for school, university, outdoor sports, camp, hiking trip, trips, picnic, etc.

Rank No. #14

Replacement for SCRIB3D Pen Charger, DC 5V Power Cord Compatible with SCRIB3D P1 3D Printing Pen with Display and SCRIB3D Advanced 3D Printing Pen, Portable and Compact 3D Pen Charger

【for SCRIB3D Pen Charger】Input: AC 100V-240V 50/60Hz; Output: DC 5V; Power cord length: 4.9FT. This 3d printing pen charger has been tested with SCRIB3D 3D pen . It is an excellent replacement for SCRIB3D pen original charger.
【3D Pen Charger Cord Compatibility】Fit for SCRIB3D P1 3D Printing Pen with Display; Fit for SCRIB3D Advanced 3D Printing Pen.
【Compact and Portable】Measuring less than 2.5 inches on each side, this compact power charger is perfect in your travel bag or portable. The smooth exterior, glossy detailing around the port face provide an elite look and feel.
【Good Quality】Certified by UL, FCC, CE, RoHS, The replacement for SCRIB3D p1 charger is made of fire-retardant materials. The internal adopts a multi-IC solution, which can realize automatic overcurrent protection, overvoltage protection, overload protection, and short circuit protection. Make you safe and worry-free during use.
【What You Get】1×Replacement for SCRIB3D power cord . 30 Days Money Back Guarantee,12-month Worry Free Warranty,24-hour Quick Customer Service. If you have anyproblems of our SCRIB3D pen charging cord, please feel free to contact us!

Rank No. #15

3D Pen Filament 320 Feet, 16 Colors, Each Color 20 Feet, 250 Stencils eBooks - 3D Printing Pen PLA Refills1.75mm, High-Precision Diameter and Kids Safe Material, Fit for SCRIB3D P1 and MYNT3D

【320 feet in total, 16 colors 20 feet each color】 16 colors PLA filament to scribble your 3D artistic masterpiece idea. Flesh Tone, Wood Color, Silver, Purple, Sky Blue, Dark Blue, Brown, Light Green, Green, Yellow, Pink, Orange, Red, Green Gold, White, Black.
【1.75 mm Filament, compatible with MYNT3D and SCRIB3D】The 1.75mm diameter of dikale 3D pen filament PLA is compatible with most 3D printing pens, ensuring hassle-free use and a smooth printing experience. ***Dikale 3d pen filament is not suitbale for 3doodler pen cause it only use 2.85mm diameter filament.
【Wide Range of Colors】With 16 vibrant colors to choose from, you can easily unleash your creativity and bring your ideas to life with this versatile 3D pen filament. A great gift set for your kids and art lover to have fun with crafting and drawing.
【High-Quality Material】dikale 1.75mm 3D pen filament PLA is made from premium quality, high quality updated PLA materials, ensuring smooth and consistent extrusion for all your 3D printing pen projects.
【Bonus 250 ebook stencils】You can download them on Product guides and documents part or dikale.com-support-file download page. Or send email to us for the link of 250 stencil ebooks.

SaleRank No. #16

15 Bright Colors 1.75mm 3D Pen PLA Filament Refill, Each Color 10feet, Total 150 Feet 3D Pen/3D Printer PLA Sample Pack, Compatible with MYNT3D / SCRIB3D Printing Pen

SaleRank No. #17

3D Printing Pen Drawing Templates,3D Printer Drawing Molds,3D Pen Painting Graffiti Template,Printing Paper Painting Graffiti Template for 3D Pen Kids DIY Gift Present with transparent pvc template.

【3D Printing Pen Drawing Templates Wide Range of Applications】 3D Printing Pen Drawing Templates are suitable for kids and adults,whether you are an artist,hobbyist or creative lover.You can freely create all kinds of pictures you like in the 3D printing pen picture book.Create with your own imagination.
【3D Printing Pen Picture Book】3D Pen Painting Graffiti Template each package contains 20 sheets double-sided printed 3D drawing mold and a transparent plastic plate.3D Printing Drawing Book with 40 different printing patterns includearchitecture,transport models,plants,animals,manga and ccartoon character,ect.
【3D Template Design】3D printed drawing books are easier to store and less likely to be lost than scattered paper.Reusable,more 3D printing pen picture book usage rate.Please cover the picture with the PVC transparent board in the set,erasing will not affect the paper damage.
【What 3D Stroke Doodle Templates Do】Paper stencils specially designed for 3D printing pens,with a variety of cute cartoon patterns,let your kids improve their ability to imitate,draw and imagine on the use of 3D stroke doodle stencils.
【3D Printing Pen Picture Book】3D printing drawing book is the best gift for children.The rich patterns can enhance children's visual effects and increase children's interest in creation.Just follow the lines on the picture to draw on the paper,and then put All the pieces are glued together to form a complete model.

Rank No. #18

MYNT3D Pro 3D Pen + 10 Color PLA + DesignPad Mat Kit

Everything you need to create like a pro: bundle complete with PRO 3D Pen, PLA filament refills and DesignPad mat kit
PRO 3D Pen: features stepless speed control for enhanced flow regulation, discrete temperature adjustability for upgraded material options and replaceable sealed nozzle design for clog free and long lasting operation
PLA Filament Refills: Highest quality vacuum sealed PLA in colors blue, green, red, yellow, orange, pink, black, tan, brown and gold
DesignPad: double sided silicone drawing surface with channels let you design and create perfect geometric shapes
FreePad: custom formulated transparent drawing surface with ideal adhesion so you can trace your favorite patterns, drawings or create your own designs

Rank No. #19

5 in 1 USB Charger Cable for Nintendo DS Lite/ Wii U/ New 3DS (XL/LL), 3DS (XL/LL), 2DS, DSi (XL/LL) ,NDS/Gameboy Advance SP, PSP 1000 2000 3000, Multi-Functional USB Charging Cord with Cable Tie

【Multi Compatibility】1 USB charger cable with 5 different connectors, compatible with Nintendo NDS Lite, New 3DS (XL/LL), 3DS (XL/LL), 2DS, DSi (XL/LL), NDS/GBA SP (gameboy advance sp), Wii U, PSP 1000 2000 3000. One professional charging cable meets all!
【Cost-Effective & Charge-Convenient】This compact and lightweight multi-charging cable can charge up to 5 gaming consoles simultaneously. No need to purchase multiple separate charging cables, making it especially suitable for game lovers with diverse gaming consoles. Standard USB interface can easily charge your devices from any USB port, such as power bank, wall charger and car charger. Always ready for games at home, in the office,or on the go!
【Supportable System】Support for Windows 7/8, for 98SE/ ME/ 2000/ XP/ VISTA
【Fast & Safe Charging】Provide maximum stable charging speed of up to 2A for your 5 gaming consoles. Thicker copper core and durable material that withstands 5,000 times bend test, make you worry-free about the charing speed and safety even when charging 5 consoles at the same time
【Package & Warranty】Comes with 5-in-1 USB charging cord, one cable tie to keep cables organized, 30-day money back and 12-month warranty. Any questions, please feel free to keep in touch with us

Rank No. #20

ANKHOH Case Compatible with 3Doodler Start+ Essentials (2023) for 3D Pen Set for Kids, Storage Organizer Holder for Printing Filament Refill and Micro-USB Charger, Blue (Box Only)

Case for 3d pen storage for kids perfect fit: Customized box for 3Doodler start+ essentials (2022) for 3D pen set for kids also fits for 3Doodler Start for 3D printing filament refill blister pack, storage case for 3d pens for kids ages 10-12, Color in green match with for 3D printing pen for 3doodler, simple and good looking. External size: 7*3.9*3.25 in (For sale is the bag only, not for 3d pens and accessories included)
All round protection box for 3d pen for kids ages 8-10: for 3d printing pen case made of high quality hard material which is shock proof and drop-resistance, protect the pen pack for 3doodler from any damages, water proof and dust proof can keep for 3D pens for kids dry and clean in daily use.
Reasonable design case for 3d pen accessories：The storage box for 3D pen and filament with smooth zipper makes it easy on opening and closing for kids' electronics pen, inner mesh bag can expand the storage space for collecting the start refill packs for 3doodler and the micro USB cable, easier to find and use and not easily to miss any part for 3d printing accessories.
Case Tight fit for 3doodler create for 3d printing pen set：Storage holder for 3doodler starter essentials for 3d pen set for kids with customized grooved base makes totally fits for 3d pen, and two elastic bands can hold for 3D printer tools tightly on its place, won’t move and shaking which can effectively protect for 3doodler start pen in different occasions on traveling.
Portable and compact storage bag for 3D kids pencil: case for 3d art pen come with a detachable hand strap enables to bring to school, kid’s birthday party or to travel, can start creation through the art pen for 3doodler anywhere anytime, children’s creation and inspiration won’t be limited by location or time, The holder for 3D drawing pen is the best gift ideas for 11 year old boys and girls, can be sent to your kids for Christmas, birthday or children’s day gift.

Last update on 2023-09-03 / Affiliate links / Product Titles, Images, Descriptions from Amazon Product Advertising API

How Do You Buy The Best 3d printing pen with usb?

Do you get stressed out thinking about shopping for a great 3d printing pen with usb? Do doubts keep creeping into your mind? We understand, because we’ve already gone through the whole process of researching 3d printing pen with usb, which is why we have assembled a comprehensive list of the greatest 3d printing pen with usb available in the current market. We’ve also come up with a list of questions that you probably have yourself.

We’ve done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for 3d printing pen with usb that you consider buying. Your questions might include the following:

Is it worth buying an 3d printing pen with usb?
What benefits are there with buying an 3d printing pen with usb?
What factors deserve consideration when shopping for an effective 3d printing pen with usb?
Why is it crucial to invest in any 3d printing pen with usb, much less the best one?
Which 3d printing pen with usb are good in the current market?
Where can you find information like this about 3d printing pen with usb?

We’re convinced that you likely have far more questions than just these regarding 3d printing pen with usb, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.

Potential sources can include buying guides for 3d printing pen with usb, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible 3d printing pen with usb. Make sure that you are only using trustworthy and credible websites and sources.

We provide an 3d printing pen with usb buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information. How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available 3d printing pen with usb currently available on the market.

This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:

Brand Value: Every brand of 3d printing pen with usb has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
Features: What bells and whistles matter for an 3d printing pen with usb?
Specifications: How powerful they are can be measured.
Product Value: This simply is how much bang for the buck you get from your 3d printing pen with usb.
Customer Ratings: Number ratings grade 3d printing pen with usb objectively.
Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their 3d printing pen with usb.
Product Quality: You don’t always get what you pay for with an 3d printing pen with usb, sometimes less, and sometimes more.
Product Reliability: How sturdy and durable an 3d printing pen with usb is should be an indication of how long it will work out for you.

We always remember that maintaining 3d printing pen with usb information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.

If you think that anything we present here regarding 3d printing pen with usb is irrelevant, incorrect, misleading, or erroneous, then please let us know promptly! We’re here for you all the time. Contact us here. Or You can read more about us to see our vision.

FAQ:

Q: Should I buy a 3D pen?

A: Yes, you should buy a 3D pen! A 3D pen is a cool thing; you can use it to modify the details of 3D printed designs since it can print small details. It is also light and easy to hold so you can do your work anywhere.

Q: What is the purpose of a 3D printer?

A: A 3D printer’s sole purpose of existence is to create or print three-dimensional objects. This process is known to be as 3D printing or Additive Manufacturing.

Q: How does a 3D pen work?

A: A 3D pen works by heating a plastic filament to its melting point and forcing it through the tip of an extruder, how a glue gun works. Once the melted plastic leaves the tip it is very malleable and can be painted onto any surface or molded into any shape.

Q: What is a 3D pen printer?

A: A 3D printing pen, also known as a 3D pen, is a device that allows you to create 3D models. Using a range of filaments as material, the pen allows you to draw the shape in thin air leaving behind a quickly hardening material.