HEIDENHAIN TNC 310 (286 140) Pilot - Manual (Page 9)

9
Fundamentals
Polar Coordinates
Dimensions in polar coordinates are referenced to the pole (CC).
A position in the working plane is defined by
• Polar coordinate radius PR = Distance of the position from the pole
• Polar coordinate angle PA = Angle from the angle reference axis to
the straight line CC – PR
Incremental dimensions
Incremental dimensions in polar coordinates are measured from the
last programmed position.
Programming polar coordinates
Defining Tools
Tool data
Every tool is designated by a tool number between 1 and 254.
Entering tool data
You can enter the tool data (length L and radius R) either:
• centrally in a table (tool file TOOL.T) for common use
by all programs
or
• locally in TOOL DEF blocks within each part program
Select the path function
Press the P key
Answer the dialog prompts