Sketch

Importing Geometry

Bringing in SVG and DXF files, and using backdrop images for tracing.

Import Overview

PureCut CNC can import geometry from SVG and DXF files. Imported shapes become native sketch features — they can be transformed, assigned operations, and edited like any hand-drawn feature.

To import, click Import Geometry in the toolbar (or use the keyboard shortcut for your platform). The Import dialog opens and lets you select a file.

SVG Import

SVG files are imported as sketch features. Paths, rectangles, circles, ellipses, and polygons in the SVG are converted to the corresponding feature types. Bezier curves are preserved as composite features.

SVG coordinates are normalized to the project's unit system. The import dialog shows a preview of the imported shapes before you confirm.

What imports well: Clean vector paths from Inkscape, Illustrator, or similar tools. Paths with fill and stroke, simple shapes, and text that has been converted to paths.
What may not import: SVG features that rely on CSS styling, gradients, filters, or raster images embedded in the SVG are not supported. Only path geometry is imported.

DXF Import

DXF files (AutoCAD Drawing Exchange Format) are imported similarly to SVG. Lines, arcs, circles, polylines, and splines are converted to sketch features.

DXF import coverage is ongoing — complex DXF files with many entity types may not import completely. If a shape is missing after import, check whether the source DXF uses entity types that are not yet supported.

Tip: If your DXF file doesn't import correctly, try exporting it from your CAD tool as DXF R12 or DXF 2000 format, which use simpler entity types.

After Import

Imported features appear in the feature tree. They are initially placed at the origin of the import coordinate system. You will typically need to:

  1. Select the imported features and move them to the correct position on the stock.
  2. Set Z Top and Z Bottom for each feature in the properties panel.
  3. Set the Operation (Add or Subtract) for each feature.
  4. Assign CAM operations as needed.

Imported features can be edited in sketch edit mode just like hand-drawn features.

Backdrop Images

A backdrop image is a reference image displayed behind the sketch canvas. It is useful for tracing over a photograph, technical drawing, or scan of a physical part.

To load a backdrop image, select the Backdrop node in the feature tree and click Load Image in the properties panel. PNG and JPEG images are supported.

Backdrop Properties

PropertyDescription
OpacityControls how transparent the backdrop image appears. Lower opacity makes it easier to see the sketch geometry on top.
Width / HeightThe displayed size of the image in project units. Adjust to match the real-world dimensions of the reference.
AngleRotation angle of the image in degrees.
VisibleToggles the backdrop image on and off without removing it.

Backdrop Transform Tools

Select the Backdrop node, then use the backdrop transform buttons in the toolbar (or the action buttons in the properties panel) to move, resize, or rotate the image interactively on the canvas.

The backdrop image is not included in the 3D model, toolpaths, or G-code export. It is a visual reference only.