The TPU That Changes Everything: Glass-Fiber Reinforced!

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TPU is easily one of the most underrated materials in 3D printing. In this video, I break down what TPU actually is, show you how to print flexible filaments reliably (without endless manual speed tuning), test new innovations like 2.20 mm high-speed TPU from Recreus and Glass-Fiber reinforced TPU (TPU-GF), and showcase functional engineering applications – from silent TPU gears to mechanical interlocking multi material prints – that go far beyond standard phone cases or bumpers.
Whether you are using a machine from Prusa, Bambu Lab, Creality or Elegoo, these TPU-printing workflows and applications work across all FDM 3D printer brands.

🧵 TPU Filaments Shown in the Video
Prusament TPU 95A: https://www.prusa3d.com/category/prusament-tpu/#a_aid=jantec/ (aff)
Recreus 2.20 mm TPU (FilaFlex 2.20 System): https://recreus.com/en/pages/the_220_revolution
Siraya Tech Fibreheart TPU-GF: https://link.amazon/B0bI6yLoc (aff)

♨️ Filament Dryers & Dryboxes
SUNLU S4 Filament Dryer: https://amzn.to/4q2DF5t (aff)
EIBOS 360° Dryer: https://amzn.to/4xnuUFw (aff)
Prusa USS Drybox: https://www.prusa3d.com/product/prusa-uss-drybox/#a_aid=jantec/ (aff)
Fiberthree Drybox: n/a

🔗 Sources
Prusa Research Flexible Materials & Print Sheet Compatibility Guide: https://help.prusa3d.com/article/prusament-tpu-95a-material-guide_899653
PrusaSlicer Cross-Hatched Mechanical Interlocking Feature: https://blog.prusa3d.com/prusaslicer-2-9-1-smarter-sequential-printing-stronger-multi-material-interlocking_111458/
TPU Temp Tower: https://www.printables.com/model/117955-prusa-mini-temptower-for-tpu
3D Models shown in the video (Printables Collection): https://www.printables.com/@JanTec/collections/3499603

📺 Mentioned YouTube Videos
@CNCKitchen (TPE Material Testing Video): https://www.youtube.com/watch?v=4InFd5DoZa4&t=637s
@LostInTech3D (TPU-GF Macro Inspection Video): https://youtu.be/IzlOuCNoaSs?si=nCgJFWnlpYaM6RzK
@FunctionalPrintFriday (Alternating TPU & PLA Support Bellows Technique): https://www.youtube.com/watch?v=UFrWfnwD3aU&t=1856s
@MyTechFun (Igor's Creator Showcase on Favorite TPU Prints): https://www.youtube.com/watch?v=aPzzDv9gKuc&t=421s
@christopherhelmke (TPU Gears in Screw-Counting Machines): https://www.youtube.com/watch?v=XSQUrnoHFxk&t=646s

💚 Support Me
AliExpress Affiliate: https://s.click.aliexpress.com/e/_oFiqj47 (aff)
Amazon Affiliate: https://amzn.to/45Q18OH (aff)
Prusa Affiliate: https://www.prusa3d.com/#a_aid=jantec (aff)
Use the code "@JanTec" and get up to 200 Prusameters with the purchase of your first Prusa 3D printer!
3DJake Affiliate: https://tidd.ly/4481AFX (aff)
Nobufil Affiliate: https://www.nobufil.com/?ref=JanTec (aff)
Get 15% off at Nobufil with the code "JANTEC"!

👐 Follow me on my other social media channels to never miss any updates:
X (Twitter): https://x.com/jan_tec
Printables: https://www.printables.com/@JanTec
LinkedIn: https://www.linkedin.com/in/wegenerj/

📚 Chapters
00:00 Intro
01:09 What is TPU?
02:35 How to print TPU
02:50 1) Drying
04:19 2) Slicer Settings
05:10 3) Bed Adhesion
06:09 Mechanical Properties
06:42 PCBWay
07:37 2.20 mm TPU (Recreus)
09:58 TPU-GF
11:35 Applications

#3dprinting #tpu #engineering

ℹ️ Disclaimer
The links marked with "aff)" are affiliate links, which means that I receive a commission if you buy through the link - at no extra cost for you! As an Amazon partner, I earn from qualified sales.
Some of the products shown in the video were provided to me free of charge for testing/promotional purposes.
DISCLAIMER: Part of this video was sponsored by PCBWay.
FTC Disclaimer: A percentage of sales is made through Affiliate links