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Tutorial: How to Reverse Engineer 3D Models

Amtek Company Support Specialist Lucas Stiim recently hosted a webinar in which he demonstrated how to use a Creaform Go!SCAN SPARK 3D Scanner to capture data from a broken mechanical part, reverse engineer the scan in SolidWorks and print a new functional part on a Stratasys F170 3D printer.

Reverse engineering has many applications in the classroom or lab, whether you’re looking to scan and create variations of a part, scan 3D art to create a hands-on model (something our museum customers do often!), or repair dysfunctional parts (which is what we cover in this webinar).

As you scan your part, here are some tips to remember:

  1. Always calibrate the scanner before you use it
  2. Using a Lazy Susan can help rotate smaller parts while scanning
  3. During scanning move at a slow and consistent speed and be sure not to move the part.

Throughout our webinar, we cover three major steps: Preparing scan data for CAD, modifying the part in CAD, and 3D printing your final model.

Preparing Scan Data for CAD

Watch along and learn how to:

  • Create planes and entities within VXmodel that will be converted into CAD.
  • Align your model to the origin of the works space using entities and planes.
  • Create entities using the geometry of the part that you would like to recreate or modify within CAD
  • Convert your entities to SOLIDWORKS. (*If you have a large scan with many different entities, it is recommended to convert the entities in groups). 

Reverse Engineering/Modifying in CAD

Using Solidworks we covert the entities brought over from VXelements into 2D sketches. These are the steps we follow:

  • Using the geometry brought over, create new sketches using those as a reference.
  • Modify or add to the 2D sketch to change our scanned parts dimensions.
  • Extrude the 2D sketch to a 3D model, adding any features necessary.

3D Printing

To 3D print a part we must first convert the part to the printers file type. This is done is a slicer software like GrabCAD Print. Follow along as we:

  • Import the model to GrabCAD Print.
  • Modify any settings like Infill and support generation.
  • Load the 3D printer with the desired materials.
  • Print the part.
  • Process the part if needed and compare and test its function.

author avatar
Christine Archer
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