Bondtech LGX extruder guide & test for Prusa MK3 and Artillery3D X1

After introducing dual drive gears for greater filament grip in the BMG, Bondtech has its next major development with the LGX. This is a dual Large Gear eXtruder, and brings some new innovations to 3D printing. This is a premium product with a premium price, so to find out how good it is, I fit and test upgrade kits for the Prusa i3 MK3 and Artillery3D Sidewinder X1. Of course I’ve endeavoured to provide a guide so you know what to expect.

Bondtech LGX base product: https://www.bondtech.se/product/lgx-large-gears-extruder/
LGX upgrade kit for Artillery3D Sidewinder X1: https://www.bondtech.se/product/bondtech-lgx-dd-for-artillery-sidewinder-x1-with-copperhead/
LGX upgrade kit for Prusa i3 MK3(s): https://www.bondtech.se/product/bondtech-lgx-ff-for-flexibles-for-prusa-mk3s/

These kits were sent to me free of charge by Bondtech for the purpose of making this video. All opinions expressed are my own.

Some other thoughts:
- Particularly for the MK3, it is a LOT easier to partially disassemble for maintenance or clearing clogs.
- You could opt to also get the high temp heater cartridge and thermistor to print really high temperature filaments.
- The design, engineering and manufacture in my opinion is top notch.
- Part cooling could be improved by adding a second fan and/or a custom duct.
- The piano music on repeat in the instructional videos started to drive me crazy.

0:00 Introduction
Previous relevant videos:
E3D Hemera on Ender 3: https://youtu.be/oY1F7fUBHrc
E3D Hemera on CR-10 Max: https://youtu.be/1jhHvxmzKm4
BIQU BX test: https://youtu.be/bfhhUVJkP_s

1:18 What is the LGX and how much is it?

5:58 Installation
All installation instructions are found on the product pages linked above. Just select the content you want from the left hand menu.
Waggster mod for clean BLtouch mounting wiring on an X1: https://www.thingiverse.com/thing:3716043
My remixed holder to suit the longer Bondtech LGX: https://www.thingiverse.com/thing:4814335

12:17 Firmware changes

13:26 Setup and calibration
My calibration website for first layer, retraction, PID tuning, max flow rate and more: https://teachingtechyt.github.io/calibration.html

15:21 Grip strength benchmark

16:23 Size and weight comparison

17:44 Test Prints
Calibration cube: https://www.thingiverse.com/thing:1278865
Twisted heart vase: https://www.thingiverse.com/thing:42570
Kant twist clamp: https://www.thingiverse.com/thing:2833822
Part cooling torture test: https://www.thingiverse.com/thing:3167063
Low poly fox: https://www.thingiverse.com/thing:937740

19:55 Conclusion

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