Overview
Offsets are parallel copies of an existing layout line at a specified distance. Offsets are commonly used when you need layout guidance in a tight or inaccessible location where the robot cannot physically drive, or when you want to provide a measurable reference line for manual layout. Dusty recommends planning offset when tight locations are known ahead of time.
Symptoms / What You’ll See
- You need a line printed, but the robot cannot access the exact location (tight corridor, close to a wall, congested area).
- You want a parallel “reference” line to measure from for manual layout.
- You want to print an “X inch/ foot offset” line for trade crews (e.g., framing offsets).
- You need to create a control point from an offset due to field conditions
Why This Happens
- Some areas are not accessible due to line-of-sight limitations between the tracker and robot, or due to physical constraints near walls, pipes, and openings.
- In these cases, printing an offset line provides accurate guidance without requiring the robot to enter the tight space.
How to Fix or Prevent
- Confirm the line you are offsetting is in the correct layer and visible
- Open the Layers panel.
- Ensure the source layer is visible on the canvas.
- Select the layout line you want to offset
- Use the selection tool to tap the line.
- If multiple objects are stacked, deselect all and then reselect only the line to be offset. Only one line can be selected for this feature to work.
- Create the offset from the selected line
- Select the line you want to create the offset from.
- Hold your finger on the side and direction where you want the offset line to appear.
- When prompted, enter the value of the offset using the project units.
- Enter the offset distance
- Type the offset value using the units your project is using (feet/inches or metric).
- Use a positive value only; direction is chosen in the next step.
- Set the offset direction
- Tap the side of the original line where you want the new line to be created.
- Confirm the preview shows the offset line on the correct side.
- Create and review the new offset line
- Confirm to place the offset line.
- Verify it is parallel, continuous, and located at the intended distance.
- Print the offset line and use it as a manual reference if needed
- Print the offset line.
- If the intent is to lay out the real condition manually, measure from the printed offset line to your final location.
Best Practices
- Plan offsets early when you know areas will be inaccessible, and include them in the file prep or layout plan.
- Label offsets clearly (in the model or as embedded text) so crews know what the offset represents.
- Do not use offsets to hide control or stationing issues. Offsets will not fix a mis-stationed setup.
- Spot-check offsets by measuring a short sample distance in the field before printing the full perimeter.