Your CAD Programme. Virtually all 3D Rapid Prototyping machines and 3D Printers use the STL file format for input.

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1 Export STL Files From Your CAD Programme Introduction Virtually all 3D Rapid Prototyping machines and 3D Printers use the STL file format for input. Almost all CAD programs have a way to save or export to the STL file format. Below follow detailed instructions for most common CAD programs. Don't forget to check the resulting file with an STL Viewer List of CAD Programs Virtually all 3D Rapid Prototyping machines and 3D Printers use the STL file format for input. Almost all CAD programs have a way to save or export to the STL file format. Below follow detailed instructions for most common CAD programs. Don't forget to check the resulting file with an STL Viewer List of CAD Programs Alibre AutoCAD Autodesk 3ds Max (3D Studio MAX) Autodesk Inventor Autodesk Mechanical Desktop Bentley Microstation V8 Blender Cadkey / KeyCreator Catia CoCreate Creo Direct Creo Elements/Pro Creo Parametric I-DEAS Inventor Ironcad Pro/ENGINEER Revit Rhino Siemens PLM NX Google Sketchup Solid Edge SolidDesigner SolidWorks Think3 Unigraphics Vectorworks

2 INSTRUCTIONS FOR STL EXPORT Alibre 1. File > Export 2. Save As > STL 4. Save AutoCAD Note: you can only export 3D solid objects to STL 1. At the command prompt type "FACETRES" 2. Set FACETRES to Type "STLOUT" 4. Select the objects 5. Enter Y or hit Enter for Create a binary STL file? [Yes/No] <Yes> 6. Enter Filename 7. Save Autodesk 3ds Max (3D Studio MAX) 1. File > Export 2. Select type StereoLitho *.stl 4. Save 5. Select Binary 6. OK Bentley Microstation V8 1. File > Export 2. Choose file type STL. A dialog box opens. 3. Set Stroke tolerance to 0.05mm (0.002 in) 4. Select Binary 5. Click Export 6. Enter Filename 7. Click Save Blender 1. File > Export > STL Enter Filename 3. Select location 4. Click button Export STL Cadkey / KeyCreator 1. File > Export > STL 2. Enter Filename > OK 3. In the options dialog: 1. Change Format to Binary 2. Change "Facet Tolerance" if a higher resolution is required Additional export tolerance options are in the Solids99 Configuration window accessed from the Tolerance section of Configuration.

3 Catia The export to the STL format is only possible in the Part Design environment. If you want to export a complete assembly (CATProduct) as a single stl file, you will have to convert the assembly in the Assembly Design environment to a CATPart as follows: 1. Select the entire product tree 2. Tools > Generate CATPart from Product 3. Enter New Part number 4. do NOT check: Merge all bodies of each part in one body 5. OK Now you can export the CATPart in the Part Design environment. The accuracy of the STL file depends on the Display accuracy. First set the display accuracy. 1. Tools > Options In the tree select General > Display 2. select the Performance tab 3. Under 3D Accuracy select Fixed 4. Set to 0.02 mm ( in) 5. Adjust Curves' accuracy ratio to OK 2. File > Save As 4. Select type stl Creo Direct (Creo Elements/Direct, CoCreate, OneSpace, SolidDesigner) 1. File > Save 2. Press Select > select the objects (or click All Objects) 3. Select File Type STL (*.stl) 4. Click Options 1. Check Binary 2. Max Deviation Distance: enter mm (0.001 in) 3. Angle: enter Enter Filename 6. Save Creo Parametric (Creo Elements/Pro, Pro/ENGINEER) 1. File > Save a Copy 2. Select type STL > OK 3. Select Coordinate System Standard 4. Check Binary 5. Set Chord Height to 0 (Pro/E changes it to the smallest allowable value) 6. Leave Angle Control at the default 7. Enter Filename > OK I-DEAS 1. File > Export > Rapid Prototype File 2. Select the part 3. Select Prototype Device > SLA500 > OK 4. Set Absolute Facet Deviation to Select Binary > OK

4 Autodesk Inventor ntor / Mechanical Desktop You can export individual parts or whole assemblies. 1. Manage tab > Update panel > Rebuild All 2. File > Save as > Save Copy As 3. Select STL 5. Select Options 1. Format > Binary 2. Units > mm or inches 3. Resolution > High 6. Save Ironcad 1. Right Click on the part 2. Part Properties > Rendering 3. Set Facet Smoothing to File > Export 5. Select.STL Autodesk Revit 1. Download the STL Exporter from Autodesk Labs 2. Unzip and install using the installer for your version of Revit 3. Load the 3D model and select a view 4. External Tools > Export 5. Adjust and scale your model using a STL viewer The STL Exporter exports one STL unit for every foot (304.8 mm) in your model. So use your calculator and carefully check the result in a STL viewer before 3D printing anything. Rhino 1. File > Export Selected or File > Save As 2. Select the objects to be exported 3. Select File Type Stereolithography (*.stl) 6. in STL Mesh Export Options 1. Enter Tolerance 0.02 mm ( inches) 2. OK 7. Alternatively press Detailed Controls... which opens the dialog box Polygon Mesh Detailed Controls 1. Set Maximum angle to Set Maximum distance edge to surface to 0.02 mm ( inches) 3. Set Minimum intial grid quads to Check Refine mesh 5. Leave all other controls at 0 or unchecked 6. OK 8. in STL Export Options 1. Select Binary 2. Uncheck Export Open Objects 3. OK 9. If you get the STL Export Warning dialog, Cancel and fix your modeling errors

5 Siemens PLM NX (Unigraphics) 1. File > Export > STL 2. Select Output Type Binary 3. Set Triangle Tol to mm (0.001 in) 4. Set Adjacency Tol to 0.1 mm (0.04 in) 5. Set Auto Normal Gen to On 6. Set Normal Display to Off 7. Set Triangle Display to On 8. OK 9. Enter Filename > OK Google Sketchup Google Sketchup cannot export to STL natively. You will have to install a third party plugin. Here are the possibilities: su2stl.rb plugin. CADspan plugin Convert Sketchup SKP files to DXF or STL Sketchup to CNC STL for Sketchup (stl4su) plugin Alternatively export to.dae file, then import the.dae (COLLADA) file in Meshlab or Blender and export to.stl file. Solid Edge (Siemens PLM) 1. File > Save As 2. Set type to STL 3. Click Options 1. Set conversion Tolerance to mm (0.001 in) 2. Set Surface Plane Angle to Select Binary 4. OK SolidWorks 1. File > Save As Set type to STL(*.stl) 3. Click Options Output as: check Binary 2. Unit: > Millimeters or Inches 3. Resolution > Fine 4. OK SolidWorks Student Design Kit 1. File > Save As Set type to edrawings(*.eprt) 3. Click Options Check Allow export to STL for Parts & Assemblies 2. OK 6. Open part in edrawings 7. File > Save as > select type STL Files (*.stl) 8. Save

6 Think3 1. File > Save As 2. Set type to STL 3. Save Vectorworks Vectorworks only exports the current layer to STL. Merging the layers into a single layer can resolve this issue. 1. File > Export > Export Stereolithography (3D Only) 2. In Export STL Options 1. check File Type ASCII 2. adjust the slider Export Quality towards the middle 3. OK 4. Save