Section 1: Setup and Assembly Overview • May 2, 2016
© Copyright 2016 ShopBot Tools, Inc. page 1-4
The control box is the “brain” of the machine and contains a control board, motor drivers, and other
electronic components that allow the tool to move with precision, accuracy, and power. It connects to
the PC through a single USB cable.
The variable frequency device (VFD) is used on machines that contain a spindle only (not a router).
It controls speed and power for the spindle. The control box provides the VFD with on/off signals, but
speed is controlled through an RPM controller unit, which connects to the PC through a separate USB
cable.
In most cases, the X-, Y-, and Z-axes will be referred to in respect to the machine. Another frequent-
ly-used term is the XY home position, as indicated here.
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