INVENT3D
TM
Printer Operating Instructions and Troubleshooting Guide
AST2 © 10/26/16
Page 6
Z-axis Components
The Z-axis components consist of the Z-axis motor with lead screw, the lead screw knob, lead
screw lock, and Z-axis end stop. The Z-axis motor moves the print board assembly up and
down via the lead screw. The lead screw knob sits on top of the lead screw, and turning the
knob by hand allows the user to manually raise and lower the print board as needed. The
lead screw lock consists of a yellow thumb screw and housing and is located on the top frame.
Tightening the yellow thumb screw will lock the lead screw in place, which is useful for
leveling the print board and calibrating the Z-axis end stop.
Be sure that the yellow
thumbscrew is loose before attempting to print; starting a print with the Z-axis locked
may damage the printer
. The Z-axis end stop is a black thumb screw located on the top of
the printer. The screw engages the Z-axis end stop, telling the printer that the 0-position on
the Z-axis has been reached. The Z-axis end stop is calibrated manually to provide for a
greater range of adjustment when setting the gap between hot end and the print board.
Wiring
All wired components connect to the RAMBo circuit board mounted to the bottom of the
printer. Wired components include 4 motors (X-axis, Y-axis, Z-axis, extruder), three limit
switches (X-axis, Y-axis, Z-axis), two fans, hot end, thermistor, LCD screen, and power.
Lead Screw
Knob
Z-axis
End Stop
Lead Screw
Lock
Lead Screw