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Arevo 3D-printed bikes

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Old 07-12-18, 11:11 AM
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JonathanGennick 
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Arevo 3D-printed bikes

A work colleague just sent me this link:

https://www.fastcompany.com/90199960...ire-bike-frame

Has anyone heard of this company, Arevo? Are they on to something?
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Old 07-12-18, 02:16 PM
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A 3D printer that prints carbon fiber? How do they keep the 3D printer from asploding?
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Old 07-12-18, 02:33 PM
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Neat looking bike. Smart of them to build around standard forks/headset/seatpost. I notice that they have an e-bike and a belt-drive IGH. Says something to the kind of user they're targeting.

There were a few thermoplastic MTB's back in the '90s, Scott and Yeti come mind.
I work for an OPE manufacturer who started replacing aluminum and magnesium castings with FRP (FiberReinforcedPlastics) about 20 years ago. The stuff is very tough, certianly more impact resistant than a catalyzed resin CF lay-up. We make tens of millions of parts per year, and some of the biggest ones might use nearly as much material as that bike frame. I wonder about differences in strength between 3-DP and conventional injection molding. We do a lot of work with the molds and welders to ensure good thermal control for optimal strength. 3-DP parts are literally hundreds and thousands of parts thermally welded together.
Oh, and finally, the 400-ton-class molds that we use for the big guys have a cycle time of ~90 seconds. I don't think they can print a frame out that fast.

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Old 07-12-18, 02:58 PM
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Originally Posted by Ironfish653 View Post
Oh, and finally, the 400-ton-class molds that we use for the big guys have a cycle time of ~90 seconds. I don't think they can print a frame out that fast.
That's one aspect I'm curious about -- speed. How long to print one frame? Does an expensive machine get tied up for a day? For two days? What does that mean for the cost of the product?
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