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1,825 Horsepower Bugatti Bolide is Packed with 3D Printed Parts

January 27, 2021

While our loyal readers are fully aware of the near ubiquitous adoption of AM throughout the automotive manufacturing industry, the shift has gone mostly unnoticed by car and truck buyers. They don’t need to know that the drive housing for the electric motors is printed, or the seats, or the tooling to make the tires because there are so many other more relevant facts to know about a car when considering to purchase one. 3D printing is certainly fascinating but manufacturing is usually a behind-the-scenes affair. That is, until Bugatti rolls onto the track. Bugatti can always be counted on to bring everyone’s attention to 3D printing, right after we stop drooling all over the car. Here’s a breakdown of all the 3D printed components in the 1,825hp Bolide.

As a “track-only concept,” the (theoretical) 310+ mph Bolide is not intended for production or purchase (yet); it’s mostly meant to demonstrate the limits of what can be done, both from a design and technological standpoint. 27-year old supercar designer Frank Stephenson dreamed up the Bolide as “the ultimate statement.” I’d say he hit the mark. The supercar that was seemingly ripped out of a sci-fi movie is powered by VW’s 8-liter quad-turbo W16. The Bolide is the lightest car with that engine (at only 2,734 pounds) due in large part to 3D printing.

Henrik Hoppe leads the SLM (selective laser melting) team at Bugatti’s new technologies department, and he was involved in the spectacular demonstration of the printed titanium brake caliper for the Chiron. Now he’s applying the lessons learned from those tests to find the ideal design and printing parameters for serial production. In order to reduce weight (and costs incidentally), the team printed parts in hollow titanium with very thin walls.

Bugatti Bolide (Image credit: Bugatti)<br />

3D Printed Parts of the Bugatti Bolide

  • – Front wing mount – the 1.32-pound hollow titanium component has 0.7mm walls and can withstand 1,763 pounds of downforce
  • – Rear wing fin mount – the rear wing is designed to take 3,968 pounds of downforce so this 11.46-ounce titanium mount is doing a lot of work
  • – Inner bowl of turbofan wheels – printed in titanium, the 3.5-ounce bowls are only 0.48mm thick; they interface with carbon plates to pull hot air away from the breaks and eject it towards the outside of the wheel 
  • – End fittings for the auxiliary drive shaft – printed in titanium so they can handle extended periods of 500°F
  • – Steering column mount and support collar as well as interior air vents – printed in titanium with 0.5mm walls to reduce weight as much as possible 
  • – Tailpipe thermal shield trim – the 280mm sleeve is 0.5mm thick and weighs only 26.45 ounces; a Venturi nozzle is integrated into the patent-pending design to draw fresh air into the trim cover 
  • – Horizontal dampers for suspension pushrods – the 3.52 ounce hollow titanium parts can support up to 3.85 tons of force, and they have built-in oil reservoirs 

There are very likely more printed components that Bugatti hasn’t revealed yet, but it’s an impressive list already. Bugatti does a fantastic job of showing how AM technology, and a bit of creativity, can drastically improve form and function simultaneously.

Related Story
3D Print Your Own Car Parts
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About the author | Cameron Naramore
Cameron is a 3D printer and CNC operator. He's fond of cooking, traveling, and science fiction.
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