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This LGX™ based upgrade kit is a drop-in replacement of the stock bowden extruder. It requires no other accessory than the ones included in the LGX™ package.
The LGX™ is the Bondtech extruder with the highest filament grip due to its new large drive wheels that put more teeth engaging the filament.
Start using our newest extruder with our new Dual Drive Technology based on larger drive gears. This is only one of the 7 new features Bondtech implemented on an extruder.
The housing parts are professionally printed with nylon for maximum strength and precision and higher temperature resistance.
To use the LGX, run the stepper motor with currents between ~0.45 and ~0.65A:
Be vigilant regarding the stepper motor surface temperature.
Keep it cool enough to touch. Lower Vref otherwise.
It is very hard to read the current being fed to stepper motors. To determine that current we rely on the Vref value. The Vref value is a voltage reference measured in VDC that can be read using a multimeter. It helps us setting the current output of the stepper motor driver.
Different 3D printer mainboards use different stepper motor drivers. Each type of stepper motor drivers has its own formula to calculate the required Vref to get a specific current. Here are some examples: