11.4 Advanced Programming

Setting Stroke Limit:

The software limits feature creates an envelope that limits the tool's range of travel. It is also called the Stored Stroke Limit feature. The X, Y, and Z limits represent the extreme distance the tool can travel in the positive X, Y, and Z directions. The I, J, and K limits represent the extreme distance the tool can travel in the negative X, Y, and Z directions.

Software limits are referenced to Absolute Machine Zero. The values of the positive and negative limits should be programmed within existing machine limits.

To set software limits make sure the tool is within the envelope defined by the software limits (XYZIJK).

In Edit Mode or Manual Data Input Mode set the appropriate values or the 3500i does not activate software limits.

G-Code format: G22

Return from Reference Point:

Return from Reference Point can be used in conjunction with the Intermediate Reference Point. If the Intermediate Reference Point is commanded prior to the Reference Point, then the intermediate machine reference point is passed to the Reference Point. Return move is rapid or feed depending on which is active.

G-Code format: G29

Move Reference from Machine Datum:

Move Reference from Machine Datum is used to move an axis in reference to preset machine datum without being influenced by tool or fixture offsets. The default machine datum location is preset to machine zero. Move is rapid or feed depending on which is active to machine datum position.

G-Code format: G30

Recommended Machine Datum default setting is machine zero. Changes to datum setting will shift intermediate point and machine reference position.

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11 G-Code Edit, Help, & Advanced Features

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Acu-Rite CNC 3500i user manual Setting Stroke Limit, Return from Reference Point, Move Reference from Machine Datum