# PrintrBot NinjaFlex Extruder Upgrade ## Overview **_This part only works with the early 2014 models of the Printrbot Simple Metal_** \*\*\*UPDATE: We recommend using the Gear Head Extruder upgrade from Printrbot to print Ninjaflex ## Get the Gear Head Extruder [http://printrbot.com/shop/gear-head-extruder/](http://printrbot.com/shop/gear-head-extruder/) **_This part is out of date and no longer supported_** ![](https://cdn-learn.adafruit.com/assets/assets/000/016/822/medium800thumb/3d_printing_buckle.jpg?1448311664) [NinjaFlex](https://www.adafruit.com/product/1690) is our favorite TPE based filament because it works great with our wearable projects. If you've ever tried printing NinjaFlex on a [PrintrBot](https://www.adafruit.com/products/1760), you may have noticed a small problem. It doesn't extrude so well. TPE material is so flexible that the filament actually buckles just before reaching the hotend. The drive gear and the hotend are so far apart that the filament can actually tangle! ![](https://cdn-learn.adafruit.com/assets/assets/000/016/823/medium800/3d_printing_guide-front.jpg?1400611957) Our 3D printed filament upgrade eliminates this problem by guiding the filament directly to the drive gear, removing any room to buckle. ![](https://cdn-learn.adafruit.com/assets/assets/000/016/824/medium800/3d_printing_guide-btm.jpg?1400611973) Designed to print right on your PrintrBot in just ten minutes, the installation is easy and requires no extra parts. ![](https://cdn-learn.adafruit.com/assets/assets/000/016/825/medium800/3d_printing_guide-back.jpg?1400611985) Parts - [Filament Guide](http://www.thingiverse.com/thing:337267 "Link: http://www.thingiverse.com/thing:337267") - [In-line power switch for 2.1mm barrel jack](https://www.adafruit.com/product/1125) - [2.1mm female/male barrel jack extension cable](https://www.adafruit.com/products/327) Tools & Supplies - [P](https://www.adafruit.com/products/1760)[rintrBot Simple Metal](https://www.adafruit.com/products/1760) - [NinjaFlex](https://www.adafruit.com/search?q=ninjaflex "Link: https://www.adafruit.com/search?q=ninjaflex") - ABS/PLA Filament ![](https://cdn-learn.adafruit.com/assets/assets/000/016/832/medium800/3d_printing_parts-hero.jpg?1400614283) - [Next Page](https://learn.adafruit.com/printrbot-ninjaflex-filament-extruder-upgrade/3d-printing.md) ## Featured Products ### PrintrBot Simple Metal 3D Printer - Black - Assembled [PrintrBot Simple Metal 3D Printer - Black - Assembled](https://www.adafruit.com/product/1760) New from Printrbot, the Metal Simple is a brand new rock solid, all metal, fully-assembled Printrbot Simple! As opposed to the [Printrbot Simple Kit](http://www.adafruit.com/products/1735), all of the laser cut wood parts have been replaced by rock solid metal and assembled. In... No Longer Stocked [Buy Now](https://www.adafruit.com/product/1760) [Related Guides to the Product](https://learn.adafruit.com/products/1760/guides) ### NinjaFlex - 1.75mm Diameter - Snow White - 0.5 Kg [NinjaFlex - 1.75mm Diameter - Snow White - 0.5 Kg](https://www.adafruit.com/product/1691) Discontinued - **you can grab ** [NinjaFlex - 1.75mm Diameter - Almond-Peach Smoothie - 0.50Kg](https://www.adafruit.com/product/2383) **instead! ** Looking beyond ABS? Tired of PLA? Open a world of possibilities, limited only by your imagination. NinjaFlex, a... No Longer Stocked [Buy Now](https://www.adafruit.com/product/1691) [Related Guides to the Product](https://learn.adafruit.com/products/1691/guides) ### NinjaFlex - 1.75mm Diameter - Midnight Black - 0.5Kg [NinjaFlex - 1.75mm Diameter - Midnight Black - 0.5Kg](https://www.adafruit.com/product/1690) Looking beyond ABS? Tired of PLA? Open a world of possibilities, limited only by your imagination. NinjaFlex, a cutting-edge filament for 3D printers, is a specially formulated thermoplastic elastomer (TPE) that produces flexible prints with elastic properties. Patent pending technology allows... No Longer Stocked [Buy Now](https://www.adafruit.com/product/1690) [Related Guides to the Product](https://learn.adafruit.com/products/1690/guides) ### Hakko Precision Flat Pliers [Hakko Precision Flat Pliers](https://www.adafruit.com/product/1368) These Italian-made Hakko pliers are excellent for any precision work. The nose is flattened and fairly short to provide excellent control. The inside of the jaws is also flattened so they won't leave ridge-marks. And the grips are ultra comfy too, you can use these all days with no... Out of Stock [Buy Now](https://www.adafruit.com/product/1368) [Related Guides to the Product](https://learn.adafruit.com/products/1368/guides) ### 38 Piece Screwdriver Set [38 Piece Screwdriver Set](https://www.adafruit.com/product/822) Look, over there at that thing! Take it apart! You can now attack just about every kind of box or enclosure that needs undoing with this 38-bit screwdriver set. This set is fine quality and excels at disassembling games, phones, cameras, and other small portable electronic goodies. What... In Stock [Buy Now](https://www.adafruit.com/product/822) [Related Guides to the Product](https://learn.adafruit.com/products/822/guides) ## Related Guides - [3D Printed Fidget Spinner](https://learn.adafruit.com/3d-printed-fidget-spinner.md) - [Glowing Beehive Hairdo Wig](https://learn.adafruit.com/glowing-beehive-hairdo-wig.md) - [3D Scans for Low Poly Statues](https://learn.adafruit.com/low-poly-3d-scans-for-3d-printing.md) - [Raspberry Pi Zero Stand](https://learn.adafruit.com/raspberry-pi-zero-stand.md) - [2014 Halloween 3D Printed Projects Roundup](https://learn.adafruit.com/2014-halloween-3d-printed-projects-roundup.md) - [Kitty Toe Bean Keypad with Color TFT](https://learn.adafruit.com/kitty-toe-bean-paw-keypad-color-tct.md) - [Qualia S3 Fireplace](https://learn.adafruit.com/qualia-s3-fireplace.md) - [Astrolite NeoPixel Upgrade](https://learn.adafruit.com/astrolite-neopixel-upgrade.md) - [Gravity Falls Memory Gun](https://learn.adafruit.com/gravity-falls-memory-gun.md) - [Tiny TARDIS Pendant](https://learn.adafruit.com/tiny-tardis-pendant.md) - [Chauncey the Flower Care Bot with CLUE and Bonsai Buckaroo](https://learn.adafruit.com/chauncey-flower-watering-bot-clue.md) - [LED Sculpture Lamp](https://learn.adafruit.com/led-sculpture-lamp.md) - [3D Printing with NinjaFlex](https://learn.adafruit.com/3d-printing-with-ninjaflex.md) - [Mount for CRICKIT](https://learn.adafruit.com/mount-for-crickit.md) - [Magnet Bottle Holder](https://learn.adafruit.com/magnet-bottle-holder.md)