Acu-Rite CNC 3500i User Manual

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Programming Non-modal Exact Stop: 
With the In-Position Mode activated, the 3500i approaches target and 
performs an in-position check before it executes the next move. The 
CNC comes to a complete stop at the end of every block. This could 
cause witness marks to display on the work, but prevents the CNC 
from rounding off sharp corners.
G-Code format: G9
In-Position Mode (Exact Stop Check): 
While the In-Position Mode is active, the 3500i approaches target and 
performs an in-position check before the next move is executed.  The 
CNC comes to a stop at the completion of each command. This could 
cause tool dwell marks to display on the work, but prevents the CNC 
from rounding off sharp corners. 
G-Code format: G61
Contouring Mode (Cutting Mode) : 
The Contouring Mode, also known as Continuous Path Mode or 
Cutting Mode, is active at power on. It is used for feed moves. With 
the Contouring Mode activated, the 3500i approaches target and 
comes within the Continuous Path Tolerance of the target position. No 
in-position check is made before the next move is executed. This 
enables the smooth contouring of a profile or surface.  
G-Code format:  G64
Rapid moves are always performed in In-Position Mode.
In-Position and Continuous Path Tolerances are defined in 
the Setup Utility. The In-Position Tolerance should be 
closer to target than the Continuous Path Tolerance.
Rapid moves are always performed in In-Position Mode.
The machine builder defines the In-Position and 
Continuous Path Tolerances in the Setup Utility.