MPmaster TNC V 4th axis

[DavidB]

Hi guys when I do a 4th axis toolpath how is the feed rate determand?

 

I have a feed rate of 1000mm\min in my tool parameters.

My machine\control definition states to use Rotary feed @ Degree\min and 4th axis feed @ unit/min.

5-axis Rotary is set to Unit\min.

 

I think the 4th axis toolpath uses the 5-axis rotary feed???

 

The posted code has a Feed rate on everyline, there is no other NC code in the program to say other than it's mm\min.

Is that correct?

 

If I change the diameter of the cutting surface it changes the feed rates so I guess it's trying to maintain a surface speed by increasing the feed rate?

 

 

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34 L Y-.049 Z+14.477 A-178.3 F1976
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36 L Y+.038 A-177.393 F3749