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48
Witbox
User Manual
X and Y unit
The X and Y unit allows the extruder carriage to move along the X and Y axes.
To do this, it uses a system of pulleys to transfer the movement of the motors onto the
various moving parts.
The motors used by the unit are as follows:
• X-axis motor:
Nema 17 stepper motor (12V DC, 1.7A, 4000 g/cm of torque).
• Y-axis motor:
Nema 17 stepper motor (12V DC, 2.5A, 4800 g/cm of torque).
Z unit
The Z unit allows the print base to travel along the Z-axis (i.e. up and down). As the
object is printed, the print base is gradually lowered so that space is created for more
layers to be added to the object. The main parts of the Z unit are as follows (fig. 5.6
and fig. 5.7):
• Z-axis motor:
supplies the motive force to move the print base along the Z-axis.
It is a Nema 17 stepper motor (12V DC, 1.7A, 4000 g/cm of torque).
• Metal coupling:
connects the Z-axis motor to the screw drive. It is spiral shaped
in order to cushion any vibrations that may be generated.
• Screw drive: uses the rotary movement supplied by the motor to move the
print base along the Z-axis.
Figure 5.5
X and Y unit
