NC Sample Data

The following segment is from an ASCII NC drill file:

File Description

M48 Program Header

M72, LZ English measurement Leading 0's

T03C0.038 Define Tool 03 as 0.038" drill bit

T04C0.125 Define Tool 04 as 0.125" drill bit

T06C0.046 Define Tool 06 as 0.046" drill bit

T12C0.063 Define Tool 12 as 0.063" drill bit

T16C0.250 Define Tool 16 as 0.250" drill bit

% Rewind and Stop (start of drill data)

T03 Drill COMMAND GET TOOL 3

X00581Y0122 Drill location x=00581 y=0122 with current tool

T06 Drill COMMAND GET TOOL 6

X01657Y03295 Drill location x=01657 y=03295 with current tool

T12 Drill COMMAND GET TOOL 12

X00585Y03311 Drill location x=00585 y=03311 with current tool

T04 Drill COMMAND GET TOOL 4

X00873Y02691 Drill location x=00873 y=02691 with current tool

T16 Drill COMMAND GET TOOL 16

X00625Y02191 Drill location x=00873 y=02691 with current tool

T00 Drill COMMAND UNLOAD TOOL

M30 End of Program

The comments in the 'Description' column will not be in your outputs; they are added for instructional purposes. If your NC output doesn't look similar to the 'Code' example at the above left, then examine your setup options and adjust as necessary.

There may be +/ - symbols in the data. It's nothing to be alarmed about if they are present. Your NC generation routine may not define the tool diameters in the header so a separate NC Tool file will be required.

Drilling information starts at the % and ends at M30. If you open your drill file in an ASCII edit program and you observe unusual non-printable characters like hearts and diamonds you may be looking at an EIA version of your drill file. Locate the ASCII output option and regenerate to get the proper format.