DXF export for laser cutting in Solidworks - Step-by-Step Guide

Introduction

This feature helps you save your 2D drawings as DXF files. DXF files are used by laser cutting machines to cut shapes from materials. Exporting correctly ensures the laser cutter reads your design accurately.

When you need to send a part drawing to a laser cutting service.

When you want to create a file that laser cutting machines can read.

When you want to convert your SolidWorks sketch or drawing into a format for cutting.

When you want to share your design with manufacturers who use DXF files.

When you want to prepare your design for precise material cutting.

Steps

Step 1: Open the 2D drawing or sketch you want to export

- SolidWorks main window

Your drawing or sketch is visible and ready for export

Step 2: Click File menu

- Top left corner of SolidWorks window

File menu opens showing options

Step 3: Select Save As

- File menu

Save As dialog box appears

Step 4: Click the Save as type dropdown

- Save As dialog box

List of file types appears

Step 5: Select DXF (*.dxf) from the list

- Save as type dropdown

File type changes to DXF

Step 6: Click Options button

- Save As dialog box

DXF/DWG Export Options window opens

Step 7: Choose the export options suitable for laser cutting

- DXF/DWG Export Options window

Options like entities to export and layers are set

💡 Select 'Export sketches' and 'Export as 2D entities' for laser cutting

Step 8: Click OK to close options

- DXF/DWG Export Options window

Options window closes and returns to Save As dialog

Step 9: Type a file name and click Save

- Save As dialog box

DXF file is saved and ready for laser cutting

Before vs After

Before

You have a SolidWorks 2D drawing with lines and shapes visible on screen

After

You have a DXF file saved that contains the same lines and shapes ready for laser cutting

Settings Reference

Export sketches

📍 DXF/DWG Export Options window

Includes sketches in the DXF file for laser cutting

Default: Yes

Entities to export

📍 DXF/DWG Export Options window

Defines whether to export flat 2D shapes or 3D data

Default: 2D entities

Layers

📍 DXF/DWG Export Options window

Keeps drawing layers separate for better laser cutting control

Default: Export layers

Common Mistakes

Exporting 3D entities instead of 2D entities

Laser cutters need flat 2D shapes, 3D data can cause errors or be ignored

Always select '2D entities' in export options for laser cutting

Not exporting sketches

Sketches contain the cutting paths; missing them means no cut lines in DXF

Ensure 'Export sketches' is checked in the export options

Saving as DWG instead of DXF

Some laser cutters only accept DXF files, DWG may not be compatible

Choose DXF (*.dxf) as the file type when saving

Summary

DXF export saves your 2D drawings in a format laser cutters can read.

Choose 2D entities and export sketches to ensure correct cutting paths.

Check export options carefully to avoid missing or incorrect data.

Practice

1. What is the main purpose of exporting a DXF file from SolidWorks for laser cutting?

easy

A. To create a simple 2D file that laser cutting machines can read

B. To generate a 3D model for printing

C. To create a video animation of the design

D. To export a spreadsheet of material costs

Solution

1. Step 1: Understand DXF file purpose

   DXF files are 2D vector files used by laser cutters to follow cutting paths.

2. Step 2: Match file type to machine needs

   Laser cutters require 2D outlines, not 3D models or animations.

3. Final Answer:

   To create a simple 2D file that laser cutting machines can read -> Option A

4. Quick Check:

   DXF = 2D file for laser cutting [OK]

Hint: DXF files are always 2D for cutting machines [OK]

Common Mistakes:

• Confusing DXF with 3D model formats
• Thinking DXF includes animations
• Assuming DXF contains cost data

2. Which SolidWorks feature should you export to get a DXF file suitable for laser cutting?

easy

A. Sketch or drawing view

B. Simulation results

C. Assembly file

D. 3D part model

Solution

1. Step 1: Identify exportable features

   DXF export works with 2D sketches or drawing views, not 3D parts or assemblies.

2. Step 2: Select correct feature for laser cutting

   Sketches or drawing views contain 2D outlines needed for cutting paths.

3. Final Answer:

   Sketch or drawing view -> Option A

4. Quick Check:

   Export 2D sketch or drawing for DXF [OK]

Hint: Export sketches or drawings, not 3D parts [OK]

Common Mistakes:

• Trying to export 3D parts directly as DXF
• Selecting assemblies instead of sketches
• Exporting simulation data by mistake

3. Given this export setting in SolidWorks: "Export as Entities" checked and "Export as Polylines" unchecked, what will be the likely result in the DXF file?

medium

A. The export will fail with an error

B. The DXF will contain only polylines without separate lines

C. The DXF will contain individual lines and arcs, not joined polylines

D. The DXF will be a 3D file instead of 2D

Solution

1. Step 1: Understand export options

   "Export as Entities" means lines and arcs are exported as separate entities.

2. Step 2: Effect of "Export as Polylines" unchecked

   Without polylines checked, lines/arcs are not joined into polylines.

3. Final Answer:

   The DXF will contain individual lines and arcs, not joined polylines -> Option C

4. Quick Check:

   Entities only = separate lines/arcs [OK]

Hint: Unchecked polylines means separate lines/arcs in DXF [OK]

Common Mistakes:

• Assuming polylines are created automatically
• Expecting export failure due to unchecked option
• Confusing 2D DXF with 3D export

4. You exported a DXF from SolidWorks but the laser cutter software reports missing lines. What is the most likely cause?

medium

A. The DXF file was saved in 3D format

B. The sketch was not fully defined or had gaps

C. The export used the wrong file extension

D. The laser cutter software does not support DXF files

Solution

1. Step 1: Check sketch completeness

   Gaps or undefined sketch segments cause missing lines in DXF export.

2. Step 2: Verify file format and software support

   DXF is supported and 2D format is standard; wrong extension or 3D format unlikely cause.

3. Final Answer:

   The sketch was not fully defined or had gaps -> Option B

4. Quick Check:

   Incomplete sketch = missing lines in DXF [OK]

Hint: Check sketch gaps before exporting DXF [OK]

Common Mistakes:

• Blaming file extension instead of sketch quality
• Assuming laser cutter can't read DXF
• Exporting 3D instead of 2D without checking

5. You need to export a DXF for laser cutting a sheet metal part with multiple cutouts. Which approach ensures the DXF file correctly represents all cut paths?

hard

A. Export the assembly file containing the sheet metal part

B. Export the 3D folded part as DXF

C. Export only the base sketch without cutouts

D. Export the flat pattern drawing view with all cutouts visible

Solution

1. Step 1: Understand sheet metal DXF export

   Flat pattern drawing shows all cutouts flattened for laser cutting.

2. Step 2: Avoid exporting 3D or incomplete sketches

   3D folded parts or base sketches without cutouts won't represent all cut paths.

3. Step 3: Assembly export is not suitable for DXF laser cutting

   Assemblies contain multiple parts and are not 2D DXF files.

4. Final Answer:

   Export the flat pattern drawing view with all cutouts visible -> Option D

5. Quick Check:

   Flat pattern = correct DXF for sheet metal [OK]

Hint: Use flat pattern drawing for full cut paths [OK]

Common Mistakes:

• Exporting 3D folded parts instead of flat pattern
• Ignoring cutouts in base sketches
• Trying to export assemblies as DXF