Help with illegal pitch cycle..??

mattfarrell_82 · Apr 24, 2013

I'm trying to tap a 5/16-18 hole using a Fusion 640 and I keep getting this alarm.. 909 Illegal pitch in fixed cycle. Here is my code..

G84 Z -1.0 R.01 F9.44
G80

What am I missing??? Is it something in the tool data/offset??

Joe788 · Apr 24, 2013

Feed should be pitch of the thread. It'll calculate the actual IPM on it's own. So 5/16-18 would be F.0555

Philabuster · Apr 24, 2013

mattfarrell_82 said:
I'm trying to tap a 5/16-18 hole using a Fusion 640 and I keep getting this alarm.. 909 Illegal pitch in fixed cycle. Here is my code..

G84 Z -1.0 R.01 F9.44
G80

What am I missing??? Is it something in the tool data/offset??

This looks like mill program. What is the RPM prior to this block?

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Help with illegal pitch cycle..??

mattfarrell_82

Plastic

Joe788

Titanium

Philabuster

Diamond

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