How does H2C work?
The H2C printer is a machine that uses plastic filament to create 3D objects.
In most cases, H2C can print 3D models in STL format, and the file model needs to be pre-processed using slicing software before printing.
Taking Bambu Studio as an example, the slicing software divides the STL file into multiple layers. The information of each layer is automatically converted into a language that the printer can understand, which is used to guide the movement paths and speeds of each axis during the printing process.
In addition, the slicing software can also integrate a variety of parameter settings in the generated code, such as the printing temperature of the filaments, the extrusion speed of the printer, and generate support for certain parts of the printed model.
Core XY Movement System
Bambu Lab H2C is based on the Core-XY architecture, which contains two stepper motors and multiple sets of idler pulleys on the XY plane. Each stepper motor is connected to the toolhead through an independent timing belt, and the movement and position of the toolhead are controlled by the motor-timing belt coordinated transmission.
Working principle
In a Core-XY system, Motor A and Motor B independently control two belt loops. As shown below, when the left Motor B operates alone, it drives only the left Y-axis belt, causing the toolhead to move diagonally at a 45° angle.
Similarly, when the right Motor A operates alone, it drives the right Y-axis belt, moving the toolhead diagonally in the opposite 45° direction.
This structure reduces the weight of moving parts, enabling faster, smoother motion and improved print quality and efficiency.
For more details on the Core-XY motion system, please visit this link.
X-axis
The X-axis uses linear guides and belt drive to control the left and right movement of the toolhead, ensuring that the toolhead remains fixed on a horizontal plane while moving along the X-axis. Movement in the X direction is driven simultaneously by stepper motors A and B.
Y-axis
The Y-axis controls the front-to-back motion of the toolhead. The toolhead and X-axis move as one assembly along the Y-axis rods located on both sides of the printer frame. This movement is also driven by Motors A and B.
Z-axis
The Z-axis consists of lead screws and linear rods, positioned at the front-left, front-right, and center-rear of the heatbed.
Three lead screws are linked to a single Z stepper motor via a belt, ensuring synchronized rotation and heatbed lifting. Guide rods provide precise positioning, suppressing wobble caused by screw rotation and keeping the heatbed stable.
Note: The heatbed of H2C is calibrated before leaving the factory. Before use, please remove the 4 screws securing the Z-axis slider according to the instructions and store them properly. If you subsequently disassemble or maintain the Z-axis lead screw or transport the printer, please be sure to tighten these 4 screws again to prevent damage to the equipment.