HEIDENHAIN TNC 320 (340 551-01) - Manual (Page 136)

136 –˜pV"hhamV9˜pV"hhamV˜ pm›p¤’
6.5 P
a
th Cont
ours—P
olar Coor
dinat
e
s
6.5 Path Contours—Polar
Coordinates
Overview
a›^˜zpd"˜4pp=am"›F’˜©p¤˜4"m˜=FOamF˜"˜zp’a›apm˜am˜›Fh’˜pO˜a›’˜"mVdF˜
˜"m=˜a›’˜=a’›"m4F˜˜Fd"›a¦F˜›p˜"˜zF¦ap¤’d©˜=FOamF=˜zpdF˜ ˜|’FF˜
‰ ¤m="hFm›"d’:Š˜z"VF˜sT}
pd"˜4pp=am"›F’˜"F˜¤’FO¤d˜§a›^9
„ p’a›apm’˜pm˜4a4¤d"˜"4’
„ pczaF4F˜="§amV˜=ahFm’apm’˜am˜=FVFF’:˜FV˜*pd›˜^pdF˜4a4dF’
Overview of path functions with polar coordinates
Polar coordinate origin: Pole CC
p¤˜4"m˜=FOamF˜›^F˜zpdF˜ ˜"m©§^FF˜am˜›^F˜z"›˜zpV"h˜*FOpF˜
*dp4c’˜4pm›"amamV˜zpd"˜4pp=am"›F’˜ m›F˜›^F˜zpdF˜am˜ "›F’a"m˜
4pp=am"›F’˜"’˜"˜4a4dF˜4Fm›F˜am˜"˜ ˜*dp4c
8 Coordinates ˜ 9˜ m›F˜ "›F’a"m˜4pp=am"›F’˜Op˜›^F˜
zpdF:˜p
O˜©p¤˜§"m›˜›p˜¤’F˜›^F˜d"’›˜zpV"hhF=˜zp’a›apm:˜=p˜
mp›˜Fm›F˜"m©˜4pp=am"›F’˜ FOpF˜zpV"hhamV˜zpd"˜
4pp=am"›F’:˜=FOamF˜›^F˜zpdF˜ ˜ p¤˜4"m˜pmd©˜=FOamF˜
›^F˜zpdF˜ ˜am˜ "›F’a"m˜4pp=am"›F’˜^F˜zpdF˜ ˜
Fh"am’˜am˜FOOF4›˜¤m›ad˜©p¤˜=FOamF˜"˜mF§˜zpdF˜ 
Example NC blocks
Function Path function key Tool movement Required input
amF˜LP + ›"aV^›˜damF pd"˜"=a¤’:˜zpd"˜"mVdF˜pO˜›^F˜
’›"aV^›_damF˜Fm=˜zpam›
a4¤d"˜ 4˜CP + a4¤d"˜z"›^˜"p¤m=˜4a4dF˜4Fm›F—
zpdF˜ ˜›p˜"4˜Fm=˜zpam›
pd"˜"mVdF˜pO˜›^F˜"4˜Fm=˜zpam›:˜
=aF4›apm˜pO˜p›"›apm
a4¤d"˜ 4˜CTP + a4¤d"˜"4˜§a›^˜›"mVFm›a"d˜
4pmmF4›apm˜›p˜›^F˜zF4F=amV˜
4pm›p¤˜FdFhFm›
pd"˜"=a¤’:˜zpd"˜"mVdF˜pO˜›^F˜"4˜
Fm=˜zpam›
Fda4"d˜am›Fzpd"›apm + ph*am"›apm˜pO˜"˜4a4¤d"˜"m=˜"˜
damF"˜hp¦FhFm›
pd"˜"=a¤’:˜zpd"˜"mVdF˜pO˜›^F˜"4˜
Fm=˜zpam›:˜4pp=am"›F˜pO˜›^F˜Fm=˜
zpam›˜am˜›^F˜›ppd˜"¨a’
12 CC X+45 Y+25 X
Y
CC
X
CC
Y
CC