Offset

Offset makes a parallel copy of sketch edges a constant distance away — wall thicknesses, clearances, insets.

How to use it

1. Pick the Offset tool. Outside a sketch, click a face to sketch on it first.
2. Click lines and circles to add them to the offset (click again to remove). Click a face — a closed sketch profile, or a body face — to take all of its edges at once.
3. Drag the push-pull handle, or type a distance in the context pane. Positive grows a closed loop or circle; negative shrinks — or flips an open chain's side.
4. Press Enter.

Lines that connect end-to-end offset as one chain with mitered corners; a circle's radius grows or shrinks. The copies land under an Offset element beneath the sketch in the Elements pane and follow their sources as the sketch changes — the distance is an expression, so parameters work. Edit offset on the element changes anything later.

Toggle Construction (or press X) to emit the copies as construction geometry — e.g. a guide line a fixed clearance from a wall. The preview goes dashed to match.

Help

Scripting

bearcad.offset_sketch{ sketch = 0, lines = {0, 1, 2, 3}, distance = 4 }
bearcad.offset_sketch{ sketch = 0, circles = {0}, distance = -2, construction = true }
bearcad.offset_sketch{ sketch = 0, lines = {0}, distance = "gap" }
bearcad.edit_sketch_offset{ index = 0, lines = {0, 1}, distance = 6, construction = false }