RE: [mfg-smartcam] N.P.T.

[Petre Kounov]

R will increase the Pitch diameter at Z-0.68 with 0.0718 ( 2*R ).

Also P in the second line should not be 0 ( P is the height of the thread).

 

Hope this help,

 

Peter

-----Original Message-----
From: Williams, Colin [mailto:[EMAIL PROTECTED]
Sent: Monday, March 24, 2003 6:47 AM
To: Smartcam Forum (E-mail)
Subject: [mfg-smartcam] N.P.T.

I am trying to cut: 1 1/4 - 11.5 npt on a Dainichi 18-t Fanuc control. Does anybody know what the G76 line should look like. What should the 'R' value in the second G76 line be? The problem I am having is that the taper on thread seems to be out, seems to cut bigger at the bottom end.

 

example:

 

G76 P10060 Q0020 R.0020
G76 X1.61 Z-0.68 P0000 R.0359 Q0110 F0.0869

 

Any help would be appreciated.

Thanks

 

Colin Williams

WABCO Freight Car Products

Phone: 905-561-8700 ext.227

Fax: 905-561-6616

Email: [EMAIL PROTECTED]

 

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