HEIDENHAIN NC 124 - Manual (Page 108)

12 Cutting Data Calculator, Stopwatch and Pocket Calculator
108 TNC 124
INFO
ENT
Example: Entering the tool radius
You can be in any operating mode. Select Cutting Data.
T o o l r a d i u s ?
8 ENT
Enter the tool radius (8 mm) and transfer it into the box behind the letter R.
Cutting data: Calculate spindle speed S and feed rate F
The TNC can calculate the spindle speed S and the feed rate F for
you. As soon as you conclude an entry with ENT, the TNC prompts
you for the next entry.
Entry values
• For the spindle speed S in rpm:
Enter the tool radius R in mm and the cutting speed V in
m/min.
• For the feed rate F in mm/min:
Enter the spindle speed S in rpm,
the number of teeth n of the tool and
the permissible depth of cut per tooth d in mm.
For calculation of the feed rate, the TNC automatically offers the
spindle speed it just calculated. You can enter a different value, how-
ever.
Overview of functions
Function Key
Confirm entry and
continue dialog
Go to the next-higher
input line
Go to the next-lower
input line