German Technology (Shimano Electronic/Aero integration)

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Epic-o
Posts: 621
Joined: Tue Nov 20, 2007 7:18 pm

by Epic-o

Impresive work.... :shock: :shock: :shock:

http://www.forum.light-bikes.de/showthread.php?t=8347

http://freenetfoto.de/userwebsite;jsess ... =15&pos=46 (Pics 47-55)

Maybe any of the guys that were in the Ax Lightness "open-doors" day can tell us more about this build....
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Schaltung1.jpg

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Leviathan
Posts: 1282
Joined: Sat Mar 17, 2007 10:49 am
Location: Mallorca, Spain
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by Leviathan

wowzers. Clive Sinclair would be proud.
"I saw you with elephants hosing down some dwarves on black and white TV" - Ode to Anthony H Wilson

by Weenie


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Raxel
Posts: 1037
Joined: Wed Feb 27, 2008 3:41 pm

by Raxel

That seems to be a servomotor widely used for miniature robots. Wonder how large the controller is though :mrgreen:

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Simon BP
Posts: 649
Joined: Tue Jun 17, 2008 7:46 pm
Location: Denmark

by Simon BP

wouldn't it be easy'er, cheaper, more durable and better looking just to get the Di2?

phallenthoul
in the industry
Posts: 692
Joined: Wed May 28, 2008 12:15 pm

by phallenthoul

Simon BP wrote:wouldn't it be easy'er, cheaper, more durable and better looking just to get the Di2?


the thread was posted in 09 May 30th.
he probably started the project before Di2 was available..

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ave
Posts: 2134
Joined: Sun Dec 28, 2008 10:15 pm
Location: Hungary

by ave

>wouldn't it be easy'er, cheaper, more durable and better looking just to get the Di2?

People sometimes do things because they like to work on it.

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Mordi
Posts: 204
Joined: Mon Aug 29, 2005 9:33 pm
Location: OC California

by Mordi

Some serious carbonilicious tinkering going on in Deutschland! Great to see someone out there driving innovation.

mrfish
Posts: 1749
Joined: Wed Mar 28, 2007 12:49 pm
Location: Near Horgen, Switzerland

by mrfish

It's not surprising that someone has combined a servo with a derailleur. I think there's a large potential market for this if the DA system takes off. Some cleverness with the controller is needed, but the servo side of things should be relatively painless. Using an off the shelf servo would also make sense so you can swap it out for much less than a whole new assembly.

In my view the servo is not the limiting factor here. There are a wide range of models (size, weight, speed, torque, output) My other hobby is electric model helicopters. Servos nowadays can directly drive a large model helicopter to do 3D flying (continuously spinning the heli on 1 or 2 axes while doing an airplane aerobatic maneuver). To do this on a large heli you're looking at moving a 5kg load on servo horn 3cm long faster than your fingers can move. Front derailleurs no problem.

2 wheels
Posts: 4898
Joined: Tue Mar 21, 2006 12:56 am

by 2 wheels


Dead link, it just redirects to the frontpage.

Epic-o
Posts: 621
Joined: Tue Nov 20, 2007 7:18 pm

by Epic-o

2 wheels wrote:

Dead link, it just redirects to the frontpage.

Sorry....this is the most amazing part of the project (Note the shifters):
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Roel W
Posts: 943
Joined: Fri Dec 09, 2005 9:39 am
Location: Belgium

by Roel W

Impressive home made bike !!!

record
Posts: 943
Joined: Sun Dec 17, 2006 12:02 pm
Location: EU

by record

and the guy races it! really amazing!
A light bike does replace good fitness.

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Frankie - B
Admin - In the industry
Posts: 6573
Joined: Mon Jun 02, 2003 8:17 am
Location: Drenthe, Holland

by Frankie - B

I've seen this bike in person as well. The guy did a cool job building his own bike and his own DI2. Correct me if I'm wrong but I think he made the DI2 for 50 euros.
During a ride I was behind Norbert (the owner of the bike) and one thing really struck me. His fork was very flexy and constantly wobbling.

Norbert also made his own wheels. Better check the pics as well as you can guys ;)
'Tape was made to wrap your GF's gifts, NOT hold a freakin tire on.'
If you want to see 'meh' content of me and my bike you can follow my life in pictures here!

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BeeBee30
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by BeeBee30

You've got to take your hat off to this guy, but he's going to be ****** if it rains :lol:
Ti or dye!

The Weenie formally known as CAADHEAD

by Weenie


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Simon BP
Posts: 649
Joined: Tue Jun 17, 2008 7:46 pm
Location: Denmark

by Simon BP

it is very very cool that he has build his own bike from the bottum up! Respect!! I would really like to be able to do that too! Those wheels, are they campagnolo alloy with a home made carbon cover on? They look very cool!
Frankie, do you know some of the weights on his parts? Aspecially the aerobars and his seat/post combo :)

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