Circular Motion Refinement Workflow (G104 Arcs)

Circular motions (G104 arcs) are defined by two points:

• Via / Mid-Point
• End Point

Adjusting these points changes the shape and trajectory of the arc.

This workflow uses:

• Single-Point Selection
• Single-Point Correction

Step 1 — Select the Arc

Select the G104 line in the NC Editor.

Both defining points become visible in the 3D Viewer.

Step 2 — Select the Arc Point

Select either:

• the via point
• the end point

The manipulator moves to that point.

Step 3 — Adjust the Point

Apply a small correction using:

• Line-by-Line Editing, or
• Rototranslation Panel

Step 4 — Verify the Arc Shape

Inspect the arc in the 3D Viewer.

Confirm that:

• the arc remains smooth
• the trajectory matches the intended path
• no collisions occur

Notes for Operators

• Selecting the G104 block from the NC Editor automatically selects both defining points of the arc.
  This is the fastest way to visualize the full arc trajectory.

• For subtle curvature adjustments, modify the via / mid-point.

• For endpoint alignment corrections, adjust the end point instead.

• When using TCP reference, the Manipulator provides intuitive visual control for refining the arc geometry.

• Use SHIFT or CTRL multi-selection when adjusting arc segments that must remain continuous.

• Selecting points directly from the 3D Viewer provides greater flexibility, allowing rototranslation offsets to be applied to only the selected point (via or endpoint).

• After modifying arc points, always verify collision and reachability before executing the program.