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The fantastic* BIQU H2 extruder/hot end - (*IF you get a good one)

Teaching Tech

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Published on Jun 18, 2021
The BIQU H2 should be a E3D Hemera killer. Smaller and lighter for less money. The only problem is, some of them are lemons. In this guide and test I try out five to get a better picture as to their reliability.

The XChange system from printermods.com has just started shipping. THe H2 was a great match with two custom tool plate holes. There are also mounts available below to fit the H2 to a stock machine.

The H2 this video started with was originally supplied free of charge by BTT. They also supplied a free replacement. In addition to this, I purchased another with my own money for comparison. All opinions expressed are my own. If you get a working one they are pretty damn good. I you don’t, make sure Bigtreetech supply a replacement.

Purchase the H2 from Amazon: https://amzn.to/3vtiknY
Purchase the H2 from Aliexpress: https://s.click.aliexpress.com/e/_AM0QSx
Purchase the metal heat break from Aliexpress: https://www.aliexpress.com/item/1005002129464663.html

0:00 Introduction
Previous video testing BIQU BX prototypes: https://youtu.be/bfhhUVJkP_s

0:45 Specifications and unboxing
BTT product page and technical information: https://www.bigtree-tech.com/products/biqu-h2-direct-extruder.html
Previous video on fitting the Hemera to an Ender 3: https://youtu.be/oY1F7fUBHrc
Previous video on fitting the Hemera to a CR-10 Max: https://youtu.be/1jhHvxmzKm4

2:51 Disassembly & comparison with E3D Hemera, Bondtech LGX
Bondtech LGX video: https://youtu.be/7JGCX8A92qI

5:27 Standard mounting options
BTT mount downloads: https://www.bigtree-tech.com/help/download
Creality CR-10/Ender mount on Thingiverse: https://www.thingiverse.com/thing:4740250

6:14 XChange update and mounting
Previous XChange video: https://youtu.be/EVjchMw8L7Q
Paste extruder printing Nutella: https://youtu.be/E6TGv0fRg-w
XChange Kickstarter update page: https://www.kickstarter.com/projects/printermods/xchange-v10-hot-swap-tool-changing-for-every-3d-printer
Printermods XChange GitHub page: https://github.com/printermods/xchange
My printed wire clip and drilling jig: https://www.thingiverse.com/thing:4888736

8:28 Part cooling solution
5015 fan duct (original): https://www.thingiverse.com/thing:4682915
5015 fan duct (remix): https://www.thingiverse.com/thing:4749419

10:00 Firmware and slicer setup
BTT product page and technical information: https://www.bigtree-tech.com/products/biqu-h2-direct-extruder.html
My free troubleshooting page (reverse extruder direction if necessary): https://teachingtechyt.github.io/troubleshooting.html#direction

10:45 Calibration
My free calibration website (PID autotune, E-steps, flow, retraction tower, etc): https://teachingtechyt.github.io/calibration.html

11:29 Reliability issues

13:22 Reliability testing results

14:38 Print results

15:26 Conclusion: Much more potential!

Buy quality and affordable filament from X3D. Buy 3, get 1 free and a free sample pack with every order: www.x3d.com.au

Get Quality Resins from 3D Printers Online. 5% off storewide for Teaching Tech subscribers [Code: tech5]
https://3dprintersonline.com.au/

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