HEIDENHAIN TNC 426B (280 472) Touch Probe Cycles - Manual (Page 75)

HEIDENHAIN TNC 426, TNC 430 63
3.2 A
u
to
matic D
at
u
m Set
ting
U U U U Datum number in table: Enter the datum number in
the table in which the TNC is to save the coordinates
of the line intersection. If you enter Q305=0, the TNC
automatically sets the display so that the new datum
is at the intersection of the connecting lines.
U U U U New datum for reference axis Q331 (absolute):
coordinate in the reference axis at which the TNC
should set the intersection of the connecting lines.
Basic setting = 0
U U U U New datum for minor axis Q332 (absolute):
coordinate in the minor axis at which the TNC should
set the intersection of the connecting lines. Basic
setting = 0
Example: NC blocks
5 TCH PROBE 418 DATUM FROM 4 HOLES
Q268=+20 ;1ST CENTER 1ST AXIS
Q269=+25 ;1ST CENTER 2ND AXIS
Q270=+150 ;2ND CENTER 1ST AXIS
Q271=+25 ;2ND CENTER 2ND AXIS
Q316=+150 ;3RD CENTER 1ST AXIS
Q317=+85 ;3RD CENTER 2ND AXIS
Q318=+22 ;4TH CENTER 1ST AXIS
Q319=+80 ;4TH CENTER 2ND AXIS
Q261=-5 ;MEASURING HEIGHT
Q260=+10 ;CLEARANCE HEIGHT
Q305=12 ;NO. IN TABLE
Q331=+0 ;DATUM
Q332=+0 ;DATUM