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Engineering Challenge Video: Will It Tumble?

Watch our latest engineering challenge to see whether certain design features printed in different processes and materials will survive repeated crashing and falling in a cement mixer.

By Greg Paulsen
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In our latest challenge, Greg Paulsen, Director of Application Engineering, tests fourteen 3D printed materials made using six industrial additive processes. The parts endure continuous small drops in a cement mixer to gauge their durability. These samples were designed with thin walls, overhangs, ribs, lattices, and more to see which features would meet their match. Which ones do you think will survive? Watch now to find out.

What Else You Need to Know About the Test

  • Each 3D printed part is a half-sphere measuring 4” diameter
  • Full spheres were assembled from two halves, which allowed even exposure of features during the test
  • All the parts contained the same feature sets
  • Fourteen materials and six processes were used—see the table below.
  • Once a half-sphere was highly damaged, it was removed from the test and the remaining sphere was combined with another low-to-medium damage part
Test Parts Used in Engineering Challenge
3D Printing ProcessMaterial
Stratasys Fortus FDMABS-M30
Stratasys Fortus FDMPC (polycarbonate)
Stratasys Fortus FDMULTEM 9085
Carbon Digital Light Synthesis (DLS)™EPX 82 (epoxy)
Carbon Digital Light Synthesis (DLS)™RPU 70 (rigid polyurethane)
Stratasys PolyJetVeroBlackPlus
Stereolithography (SLA)Accura Xtreme Gray
Stereolithography (SLA)Accura ClearVue
Selective Laser Sintering (SLS)Nylon 12
HP Multi Jet Fusion (MJF)Nylon 11
HP Multi Jet Fusion (MJF)Nylon 12
HP Multi Jet Fusion (MJF)Nylon 12 GB
HP Multi Jet Fusion (MJF)PP (polypropylene)
HP Multi Jet Fusion (MJF)Nylon 12 with vapor polishing

More 3D Printing Resources

  • 3D Printing Process and Material Decision Guide
  • 5 Easy Ways to Save on 3D Printing
  • On-Demand Webinar: How to Design for 3D Printing
  • Engineering Challenge Video: Will It Break?

Want your idea to be turned into our next engineering challenge? Submit a request now!

For more content on custom manufacturing from Xometry, check out our recent blog posts.

Greg Paulsen
They call me the Director of Application Engineering at Xometry. This means I not only get to produce great design-for-manufacturing content, but also consult on a variety of custom manufacturing projects using CNC machining, additive manufacturing, sheet metal, urethane casting, and injection molding. If you have a question, I'm your guy.

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