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Programming manual.
CNC 8070
11.
GEOMETRY AS
SISTANCE
T
ang
ential
e
n
try
(G3
7
)
·206·
(R
EF
: 1709)
11.6
Tangential entry (G37)
Function G37 may be used to begin machining with a tangential entry of the tool without
having to calculate the intersection points.
Programming
Tangential entry must be programmed alone in the block and after the block whose path is
to be modified; this path must be a straight line (G00 or G01).
The programming format is "G37I<radius>", where the radius value is given in millimeters
or inches depending on the active units.
The linear path before the tangential entry must have a length equal to or greater than twice
the entry radius. Likewise, the radius must be positive and when working with tool radius
compensation, it must be greater than the tool radius.
Considerations
The "I" value of the tangential entry radius remains active until another value is programmed,
therefore, it won't be necessary to program it in successive tangential entries with the same
radius.
The "I" value of the entry radius is also used by functions:
G36 (Corner rounding) as rounding radius.
G38 (Tangential exit) as exit radius.
G39 (corner chamfering) as size of the chamfer.
This means that the entry radius set in G37 will be the new value of the exit radius, rounding
radius or chamfer size when programming these functions or vice versa.
Function properties
Function G37 is not modal, therefore, it must be programmed every time a tangential entry
is to be carried out.
G01 G90 X40 Y50 F800
G02 X70 Y20 I30 J0
G01 G90 X40 Y50 F800
G37 I10
G02 X70 Y20 I30 J0
Summary of Contents for 8070 BL
Page 1: ... Ref 1709 8070 CNC Programming manual ...
Page 8: ...BLANK PAGE 8 ...
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Page 60: ...Programming manual CNC 8070 2 MACHINE OVERVIEW Home search 60 REF 1709 ...
Page 72: ...Programming manual CNC 8070 3 COORDINATE SYSTEM Coordinate programming 72 REF 1709 ...
Page 96: ...Programming manual CNC 8070 5 ORIGIN SELECTION Polar origin preset G30 96 REF 1709 ...
Page 178: ...Programming manual CNC 8070 9 TOOL PATH CONTROL MANUAL INTERVENTION Variables 178 REF 1709 ...
Page 304: ...Programming manual CNC 8070 16 C AXIS Machining of the turning side of the part 304 REF 1709 ...
Page 442: ...Programming manual CNC 8070 23 CNC VARIABLES 442 REF 1709 ...
Page 443: ...Programming manual CNC 8070 443 User notes REF 1709 ...