Below centerline — Enable this option to make the tool work on the negative X side of the spindle centerline.
Turn to diameter
Chamfer — Enable the
Chamfer option to add a chamfer to your Thread feature.
The chamfer slopes into the thread for OD threads (turn) and away from the thread for ID threads (bore).
Note: You must select either
Rough or
Finish to access the
Chamfer option.
Relief Groove
Thread — Enable this option to have a thread operation on the feature.
Feed direction — This is the direction of the feed moves, select from:
- Toward spindle — the threading is performed in the direction toward the spindle.
- Toward face — the threading is performed in the direction away from the part face.
Passes — This is the number of steps to the bottom of the thread. Select either
Fixed or
Calculated.
- Fixed — refers to a fixed rate of material removal. As the tool cuts further into the part, the area of contact of the tool increases.
FeatureCAM reduces the infeed on each pass so that the tool loading remains constant. Enter the number of passes in
Count.
- Calculated — the number of steps is calculated automatically by
FeatureCAM.
- Step1 is used to specify the incremental step for the first pass across the thread.
- Step2 specifies the second pass and is used by the system to determine subsequent passes on the thread, reducing in depth until the
Min Infeed value is reached.
Spring passes — A
spring pass is a duplicate of the final threading pass. Enter the number of
Spring passes that you want.