1. Source these items
3. Look for this mounting hardware
4. Complete these steps
5. Be aware of the following
1. The LGX can be used on this setup with either the Direct or Bowden extruder interface plugs. On our setup we are using the Bowden interface plug. This is how we recommend you use it.
2. The PTFE (or Capricorn) tube in between the LGX and the hotend should be partially mobile to allow the levelling to take place. Do not use clips to secure it. Leave it floating on the LGX and hotend side.
3. The washers we use above the levelling plate are used to allow the hotend to rise when levelling and to prevent it from dropping when the extruder pushes filament out.
4. Do not connect the LGX stepper motor directly to the stock stepper motor cable. Use the recommended extension cable or make a compatible cable following our stepper motor’s technical data.
5. On the video we finish the setup by adjusting the Vref from 1.36 (stock value on our printer) to 0.8. It is recommended to use from 0.4 to 0.8. Lower the Vref if stepper motor is too hot to touch. Use a Multimeter to perform the procedure. Remember to read using VDC and to use a scale that may show you at least 2 decimal places.
6. Adjust the trigger threshold of the strain gauge. To raise its value twist the potentiometer clockwise, and counter clockwise to lower it. We got the best results setting it up to its minimum.
To know more about tuning the strain gauge levelling on Creality read this post from Sebastiaan Dammann.
7. Set the e-steps value to 400. You can either do it by: adding a M92 g-code command to the start g-code of your slicer; creating a g-code file with the M92 E400 and M500 commands and “print it” (recommended); or update the firmware including that change.
8. We achieved the best print results by using the Prusa Slicer to create the g-code files. The 3DBenchy we are making on the demo video was printed with E-PLA from Add:North, and with the following LGX profile: LGX_CR-6
See The Upgrade Kit In Action Printing A 3D Benchy
Warning – It is a very boring video : )
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