HEIDENHAIN NC 124 - Manual (Page 49)

4 Positioning with MDI
TNC 124 49
Bolt hole circle patterns
Information required:
• Full circle or circle segment
• Number of holes
• Center point coordinates and radius of the circle
• Starting angle (position of first hole)
• Circle segment only: angle step between the holes
• Bore hole or tap hole
The TNC calculates the coordinates of all holes.
Bolt hole circle graphic
The graphic enables verification of the hole pattern before you start
machining. It is also useful when:
• selecting holes directly
• executing holes separately
• skipping holes
Overview of functions
Function Soft key/Key
Switch to full circle
Switch to circle segment
Go to next-highest
input line
Go to next-lowest
input line
Confirm entry values
ENT
Fig. 4.5: TNC graphic for bolt hole circle
patterns