Getting Tapping cycle errors with incorrect feedrate tapping M6 hole in Fusion 360 CAM

Autodesk Support

Dec 7, 2023

Products and versions covered

Issue:

Getting Tapping cycle errors with incorrect feedrate tapping M6 hole in Fusion 360 CAM.

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Note -  drilling/tapping strategy is used where the spindle speed is 584 rpm set in the
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However; When post processing toolpath; the F584-rpm value also appears BUT this value should be F1
Because they expect to see the tool go down 1 mm for every revolution

Note -  the Mazak controller shows an illegal feed/speed message and stops (preventing the tool from breaking)

View shows current NC output where F is F584 and not F1
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Causes:

Cause is due to not having "Use Pitch for Tapping" on NC Output form.
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This is because the Post processor Mazak.cps has been edited where it supressed the output by inserting // on each line as shown.

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Solution:


Remove the // comments from the post which makes the "Use pitch for tapping" available when postprocessing 

View shows that Spindle Speed is correctly set by user.
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View shows edited Mazak.cps post processor
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View shows "Use pitch for tapping" dialog box now present on NC Program Post properties form after post modification.
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View shows NC code showing correct Pitch feed F1 for the M6 x 1 pitch tapped hole
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Products:

Fusion;

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