Manufacturing guy-at-large.

"A traditionally cast frame."

Added on by Spencer Wright.

Who knew: Tell people you're designing 3D printed bike parts, and *everyone* will send you some variation on this article. Which is great - it's a totally awesome project, and I think Empire and Renishaw are working on absolutely the right thing. 

But I have a little nit to pick, and it's with the specific wording of the following paragraph (ephasis is mine): 

By using additive manufacturing the MX6 saw a marked decrease in weight. In fact, while the original bike frame weighed 2.1 kg, its 3D printed cousin was slimmed down to 1.4kg - a 33% reduction. What’s more, because Empire’s frame was 3D printed analysis showed it to be denser and stronger than a traditionally cast frame.

Here's the thing: frames aren't traditionally cast. Empire Cycles makes awesome stuff - totally crazytown bikes - but there's very little that's traditional about them. In fact, they're almost specifically atraditional - they use alternative methods of manufacturing partly as an exercise in design and manufacturing prowess. 

Okay. Rant over.

I should be clear: I think this bike is awesome. I especially like the photo of the build platform, which must have been a pain to engineer - even after they'd engineered the assembled product. I think Renishaw and Empire are totally onto something here. I'm just being a punk about the details :/