GPath Laser
Arc
Last updated Jul 26, 2026, 11:41 AM
1. Activate
Choose Arc from Draw. New Arc opens with two construction methods.
2. Creation modes
Start → End → Bulge — pick two endpoints, then a bulge point that defines how the curve bows between them. Drag on the canvas for a visual bulge.
Center → Start → End — define the circle centre first, then sweep from a start angle to an end angle.
Toggle modes via radio buttons, switching clears partial input.
3. Sidebar workflow
Each step shows coordinate fields (X, Y) and action buttons (Set Start Point, Set End Point, etc.). The status lines confirm completed steps with green checkmarks.
Finish with a canvas click or Create Arc. Cancel abandons the arc.
4. Edit mode
Select an arc to adjust start/end coordinates, radius, rotation, and rename.
Laser tips
Arcs give smooth curves without many short line segments — better cut quality on rounded logos and brackets. Use bulge mode for free-form curves, centre mode when you know the radius and sweep angle. Chain with Polyline segments and Join if needed.