Click on edit code highlight the q30. Change it to Q0. See if that makes a difference. If you can run a tap through the threads and fix them it can’t be that far off. If the angle is way off then the thread will be extended and have a saw tooth finish. Tall formed threads cut much deeper than you think. Are you letting the cycle finish? You may just need to go the the offset page for the tool number and increase the offset for them to cut deeper. What type of threading bar are you using? Steel or carbide? The steel will deflect and chatter more than carbide.
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