tappered thread

[micktg007]

need help if someone can help writing me a small programe
fanuc 16 and 21t on hardinge lathe
thread male thread 1/4"npt thead length 10m/m
will position tool g0 x? z 5.0 any help please mick

[fanuc-support.c]

These X and Z values are not correct - just add your own.

G0 X65.0 Z10. (Rapid to Start Position)
G92 X59.5 Z-50 F2.0 (Setup cycle and 1st cut)
X59.0 (2nd cut at 59mm)
X58.5 (3rd cut at 58.5mm)
X58.0 (4th cut at 58mm)
X58.0 (5th cut at 58mm – spring cut)
G00 X80 Z10;

or

G76P_Q_R_
G76X_Z_R_P_Q_F_
First G76 Line Info
G76 P010060 Q00500 R.001 (finish Passes)
G76 P010060 Q00500 R.001 (chamfer Amount At End Of Thread)
G76 P010060 Q00500 R.001 (tool Tip Angle)
G76 P010060 Q0050 R.001 (minimum Depth Of Cut - Radial Value)
G76 P010060 Q0050 R.001 (finishing Pass Depth)
Second G76 Line Info
G76 Xx Z R P Q F (minor Dia Of Male)(major Dia Of Female)
G76 X Zx R P Q F (end Point Z)
G76 X Z Rx P Q F (radial Difference. Of Tapered Thread)
G76 X Z R Px Q F (Height Of Thread - Radial Value)
G76 X Z R P Qx F (First Depth Of Cut - Radial Value)
G76 X Z R P Q Fx (Feedrate / Pitch)
***R Value Can Be Omitted If Cutting A Straight Thread***

We do training courses if you are interested.

[micktg007]

thanks fanuc surpport. i trust the first example given is for a parralell thread

[fanuc-support.c]

Ooops sorry, yes.

[micktg007]

if you would like to send me some info through the post please do m a taylor engineering ltd
unit 10 orchard street,
redditch,
worcs
b98 7dp regards mick taylor