Line, Fill, Image and Offset Fill

Lesson guide

1. Open modes-start.lzrproj. The badge is 40 x 30 mm with an 8 mm opening. Keep No Machine selected.
2. In Layers, turn on operation Output above Mode. Main Output beside Show is already on. Both controls must include the operation.
3. With Line, open Preview and hide Show Travel. Inspect the outside and circle boundaries, then close Preview.
4. Choose Fill, set Line Interval to 1 mm, and Preview again. Use 4x playback, Go to start, Play and Go to end. Check the clear opening.
5. Compare Offset Fill in Preview. Then close it and Import gray-bars.png. With the bitmap selected, set X to 72 mm and apply.
6. The new bitmap layer uses Image. Its Mode is separate from the processing Mode below RASTER. Keep processing unchanged, set its comparison interval to 1 mm, and inspect both operations.

Save a separate copy and compare with modes-finished.lzrproj. The 1 mm interval is deliberately coarse for viewing.

Independent practice

Open modes-practice.lzrproj, a 45 x 35 mm badge. Enable its operation Output for disconnected Preview. Compare Line, Fill and Offset Fill, using a 1 mm comparison interval.

• Import gray-bars.png and set its X to 74 mm, leaving it beside the wider badge.
• Keep the image-processing Mode unchanged; use a 1 mm comparison interval for Image.
• Finish with Offset Fill for the badge and Image for the bitmap. Save your own copy before opening modes-practice-answer.lzrproj.

• Which Preview uses parallel rows, and which uses nested contours?
• Does the filled appearance on the canvas identify the actual path pattern?
• Which Mode changes the operation, and which controls bitmap processing?

Explained answer

Vector modes

Line follows boundaries. Fill scans the closed region. Offset Fill uses nested contour paths. The badge opening should stay clear.

Image mode

The imported 96 x 72 pixel bitmap has an Image operation. The RASTER processing Mode is a separate control.

Preview display

Show Travel displays laser-off moves. Pink overscan markings outside raster rows are a display of overscan, not extra engraving. Recheck display toggles when reopening Preview.

• modes-start.lzrproj

  40 x 30 mm demonstration starter; operation Output initially off.

• modes-finished.lzrproj

  Demonstration answer with the bitmap embedded at X 72 mm.

• modes-practice.lzrproj

  45 x 35 mm independent starter; operation Output initially off.

• modes-practice-answer.lzrproj

  Practice answer with the bitmap embedded at X 74 mm.

• gray-bars.png

  Unchanged grayscale comparison bitmap for Import.

Answers keep effective Output on so disconnected Preview includes both operations. The image is embedded; reopening an answer does not require locating the original PNG.

Matches the demonstrated Beam Bench 0.2.37 interface. Panel layout may differ in later versions.