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Video: Track Bike Build With 3D Printed Lugs

Written by Kristi Benedict
20 Comments
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Watch as stainless steel lugs are made via 3D printer and used to make a carbon tubed track bike. Video and bike work by Ralf Holleis.
Kristi Benedict
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MB
MB
12 years ago

Beyond pretty, but I’d be nervous swinging a leg over it.

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Jonny
Jonny
12 years ago

I want one… But with brakes.

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Rob
Rob
12 years ago

I’m with MB,

There would be no way I would even come close to racing on that. It like as fragile as spaghetti.

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EthanM
EthanM
12 years ago

i could never ride that, he wrapped the bars backwards.

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Freddie
Freddie
12 years ago

Just because you can 3D print something doesn’t mean you should. It looks pretty, but my gut says it’ll fold the minute you start to hammer on it. I’d like to see some footage of it actually moving.

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Ripnshread
Ripnshread
12 years ago

Sketchy

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dan
dan
12 years ago

Now we have somewhat engineer hipsters. Is there an app for that?

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Justin
Justin
12 years ago

Interesting idea, but how strong is this stuff? I”ve been searching for some information on the strength of 3D printed metals, but I can’t find a damn thing.

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Xris
Xris
12 years ago

It would be strong enough if it were annealed after the printing process like the titanium dropouts were in a previous video.

That aside, it’s still a very nice work of art.

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zoobike
zoobike
12 years ago

WOW! Ride it or not that was a hint of the hand made future right there. 3d Printing is really getting better everyday! Sure it’s more or less prototype looking but man that inspires design…

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SWijland
SWijland
12 years ago

+1 for EthanM

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Rob
Rob
12 years ago

A very quick look shows ultimate tensile strength of Ti to be 1.4GPa, while printer looks to be 1.0GPa. However, I would not trust the manufacturers claim of 1.0GPa too much as I have seen massive over-estimations of strengths from manufacturers vs my own testing.

http://designandmotion.net/rapid-prototyping/3d-printing-i-materialise-offers-titanium/

http://en.wikipedia.org/wiki/Titanium

experience: Materials scientist

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bc
bc
12 years ago

That bike is ugly and I want my two minutes back.

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maze
maze
12 years ago

I just love it. It shows the possibilities of additive manufacturing. to me it is a functional pice of art.

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Brett
Brett
12 years ago

I think safe to say: we should all consider this a concept piece.

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NotAMachinist
NotAMachinist
12 years ago

Assuming the lugs are strong enough (big assumption) that doesn’t seem like much glue holding the tubes. Also, by “glue” do they mean “high tech epoxy” or “superglue”?

I think it looks really cool.

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MaLóL
MaLóL
12 years ago

pathetic, in both aestethics and engineering. Concept idea was good though.

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Nivlac
Nivlac
12 years ago

Attention armchair engineers: Designer of this bike may have as much insight as you, and may have tested strength before spending huge time and money building said bike. That is all.

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Winklevoss M.
Winklevoss M.
12 years ago

@Niviac – As a working mechanical engineer, I’m going to say no, he didn’t. Those lugs are purely aesthetic. The dropouts are especially iffy.

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BH
BH
12 years ago

The words “track bike” and “hipster fixie” are NOT interchangeable.

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