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Circular path ct with tangential connection, A4¤d"˜ 4˜ ct, A4¤d"˜"4˜§a›^˜›"mvfm›a"d – HEIDENHAIN TNC 320 (340 551-01) User Manual

Page 131: 4pmmf4›apm˜›p˜›^f˜zf4f=amv˜"m, F„¤fm›˜4pm›p¤˜fdfhfm, Pp=am"›f’˜po˜›^f˜"4˜fm=˜zpam, 4 p a th cont ours—car te sian coor dinat e s

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131

6.4 P

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Circular Path CT with Tangential Connection

^F˜›ppd˜hp¦F’˜pm˜"m˜"4˜›^"›˜’›"›’˜›"mVFm›a"dd©˜›p˜›^F˜zF¦ap¤’d©˜

zpV"hhF=˜4pm›p¤˜FdFhFm›

˜›"m’a›apm˜*F›§FFm˜›§p˜4pm›p¤˜FdFhFm›’˜a’˜4"ddF=˜›"mVFm›a"d˜§^Fm˜

›^FF˜a’˜mp˜camc˜p˜4pmF˜"›˜›^F˜am›F’F4›apm˜*F›§FFm˜›^F˜›§p˜

4pm›p¤’I›^F˜›"m’a›apm˜a’˜’hpp›^
^F˜4pm›p¤˜FdFhFm›˜›p˜§^a4^˜›^F˜›"mVFm›a"d˜"4˜4pmmF4›’˜h¤’›˜*F˜

zpV"hhF=˜ahhF=a"›Fd©˜*FOpF˜›^F˜ ˜*dp4c˜^a’˜F„¤aF’˜"›˜dF"’›˜

›§p˜zp’a›apmamV˜*dp4c’

8

Coordinates

˜pO˜›^F˜"4˜Fm=˜zpam›

¤›^F˜Fm›aF’:˜aO˜mF4F’’"©9

8

Feed rate F

8

Miscellaneous function M

Example NC blocks

7 L X+0 Y+25 RL F300 M3

8 L X+25 Y+30

9 CT X+45 Y+20

10 L Y+0

˜›"mVFm›a"d˜"4˜a’˜"˜›§p_=ahFm’apm"d˜pzF"›apm9˜›^F˜

4pp=am"›F’˜am˜›^F˜ ˜*dp4c˜"m=˜am˜›^F˜4pm›p¤˜FdFhFm›˜

zF4F=amV˜a›˜h¤’›˜*F˜am˜›^F˜’"hF˜zd"mF˜"’˜›^F˜"4

X

Y

25

45

25

30

20