Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  


Go Back   > >

General Cycling Discussion Have a cycling related question or comment that doesn't fit in one of the other specialty forums? Drop on in and post in here! When possible, please select the forum above that most fits your post!

User Tag List

Reply
 
Thread Tools Search this Thread
Old 02-09-14, 11:16 PM   #1
HK 45
Senior Member
Thread Starter
 
Join Date: Feb 2009
Bikes:
Posts: 80
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Empire Cycles Unveils the World's First 3D-Printed Titanium Bike Frame

Quote:
Bike manufacturer Empire Cycles just unveiled the world’s first 3D-printed titanium bike frame! According to it’s manufacturers, the super light MX-6 can be “trashed downhill but allows a rider to sprint uphill without excess weight.” It was built in collaboration with UK-based engineering company Renishaw and boasts some amazing features that promise the ultimate biking experience.

The frame was manufactured in parts using laser sintering and a process called topological optimization. Its organic form relies on a series of lattice-like joints and has extraordinary structural strength while remaining a third lighter than conventional bikes. The box-like section links require minimal welding and have a tough, durable finish.

MX-6 has the same type of seat tower as its predecessor, AP-1, and a swing arm that is machined out of a 40kg block into a component that weighs only 1kg. According to the company, the MX-6 swing arm is the only fully-machined one in the world and its technology has more similarities to aircraft technology than that of bike manufacturing. The bike can be ordered in two frame sizes and in custom colors, including cobalt blue, hot red and titanium, and costs £3,975 ($6,483).
http://www.renishaw.com/en/first-met...-cycles--24154
HK 45 is offline   Reply With Quote
Old 02-10-14, 06:25 PM   #2
Soil_Sampler
A little North of Hell
 
Join Date: Mar 2006
Bikes:
Posts: 4,821
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 25 Post(s)
printed frame

http://www.dezeen.com/2014/02/07/wor...bicycle-frame/
Soil_Sampler is offline   Reply With Quote
Old 02-10-14, 10:06 PM   #3
hueyhoolihan
Senior Member
 
Join Date: Dec 2010
Location: Above ground, Walnut Creek, Ca
Bikes: 7⃥ 9 road bikes
Posts: 6,401
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
i'm surprised no one has posted to this thread. i find the technology fascinating. hope i live long enough to see it become a commercial success.
hueyhoolihan is offline   Reply With Quote
Old 02-12-14, 07:27 AM   #4
Phil_gretz
Journeyman Bike Commuter
 
Phil_gretz's Avatar
 
Join Date: Aug 2009
Location: Alexandria, VA
Bikes: '88 Fuji Saratoga, '12 Jamis Sputnik, '13 Motobecane Fantom29 HT, '16 Motobecane Turino Pro Disc, '16 Motobecane Gran Premio Elite
Posts: 3,973
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 114 Post(s)
Cool. But this production seems complex, esoteric and proprietary software intensive. Unless the firm plans on licensing this technique, it'll be limited to the few who don't want to make frames the traditional way. What are the final production frame prices going to be? Can traditional assembly methods be used otherwise? Does the relative strength gained and weight saved justify the cost?

I guess that it's interesting from an optimization standpoint. The proof would be whether top-flight MTB racers desire this type of frame or not. Otherwise, these bikes are just curiosities for tinkerers and those with discretionary income.
Phil_gretz is offline   Reply With Quote
Old 02-12-14, 10:24 AM   #5
More Cowbell
Lanterne Rouge
 
More Cowbell's Avatar
 
Join Date: Sep 2009
Location: St. Paul
Bikes:
Posts: 123
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I have used laser sintering for several prototypes in my profession. As to software all you need is a CAD package that can export to a common file type (IGES or STEP). There are several companies out there that do these types of custom work. I'm not sure how easily it could be scaled up for a volume production purposes but the costs are not outrageous.(think $30 - 50 for a component about the size of a stem). In the bike world I am more interested in component development as you can make really complex shapes in titanium for a reasonable cost.
More Cowbell is offline   Reply With Quote
Old 02-12-14, 11:17 AM   #6
fietsbob 
coprolite
 
fietsbob's Avatar
 
Join Date: Jun 2010
Location: NW,Oregon Coast
Bikes: 7
Posts: 22,221
Mentioned: 19 Post(s)
Tagged: 0 Thread(s)
Quoted: 1145 Post(s)
Metallurgically thinking, Sintered assembly grain by grain wont have the longer grain structure of a die drawn tube.

so I expect tensile strength is less,

If safety minded it needs to be thicker , so weigh more
fietsbob is offline   Reply With Quote
Old 02-12-14, 11:49 AM   #7
Phil_gretz
Journeyman Bike Commuter
 
Phil_gretz's Avatar
 
Join Date: Aug 2009
Location: Alexandria, VA
Bikes: '88 Fuji Saratoga, '12 Jamis Sputnik, '13 Motobecane Fantom29 HT, '16 Motobecane Turino Pro Disc, '16 Motobecane Gran Premio Elite
Posts: 3,973
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 114 Post(s)
Quote:
Originally Posted by More Cowbell View Post
...all you need is a CAD package that can export to a common file type (IGES or STEP). There are several companies out there that do these types of custom work...
My reading of the article suggests that their value proposition is the coupling of on-the-fly finite element analysis, structural optimization algorithms, and a CAD package interface. It's the front-end that's proprietary, or at least not an off-the-shelf package...
Phil_gretz is offline   Reply With Quote
Old 02-12-14, 12:09 PM   #8
Darth Lefty 
Disco Infiltrator
 
Darth Lefty's Avatar
 
Join Date: May 2013
Location: Orangevale CA
Bikes: '76 Paramount, 02 Hardrock, '98 C'Dale XR800, '04 Burley Samba, '15 Priority Classic
Posts: 6,280
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 328 Post(s)
Quote:
Originally Posted by fietsbob View Post
Metallurgically thinking, Sintered assembly grain by grain wont have the longer grain structure of a die drawn tube.

so I expect tensile strength is less,

If safety minded it needs to be thicker , so weigh more
But on the other hand it isn't limited by the drawing process so there isn't metal in places it's not needed.

The amusing thing to me is that the article goes on at some length about the design of the subframe but in the one photo of the bike being ridden, he's not on the seat.
Darth Lefty is online now   Reply With Quote
Old 02-12-14, 12:15 PM   #9
fietsbob 
coprolite
 
fietsbob's Avatar
 
Join Date: Jun 2010
Location: NW,Oregon Coast
Bikes: 7
Posts: 22,221
Mentioned: 19 Post(s)
Tagged: 0 Thread(s)
Quoted: 1145 Post(s)
Oh well beat it up on Big drops for a few years and ... I'll Watch .
fietsbob is offline   Reply With Quote
Old 02-16-14, 11:19 AM   #10
Artkansas 
Pedaled too far.
 
Artkansas's Avatar
 
Join Date: Oct 2005
Location: La Petite Roche
Bikes:
Posts: 12,855
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
It appears that although they are printing the whole frame, that printer size is still a problem and that the head tube assembly still has to be connected to the bottom bracket assembly with a downtube and that the component parts need to be fused together.
__________________
"He who serves all, best serves himself" Jack London

Quote:
Originally Posted by Bjforrestal View Post
I don't care if you are on a unicycle, as long as you're not using a motor to get places you get props from me. We're here to support each other. Share ideas, and motivate one another to actually keep doing it.
Artkansas is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -6. The time now is 09:18 PM.