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Larry Lem
human power supergeek

South Sandwich Islands
1971 Posts
Posted - 03/07/2012 :  13:58:46  Show Profile  Reply with Quote
I guess Cygnus shall be the underdog, with some deeper, darker underdogs as well.

Larry Lem
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Speedbiker
human power supergeek

USA
1992 Posts
Posted - 03/07/2012 :  15:57:45  Show Profile  Reply with Quote
Yeah, what about the Lemmy Spcl?
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jnyyz
recumbent enthusiast

Canada
148 Posts
Posted - 03/07/2012 :  16:22:53  Show Profile  Visit jnyyz's Homepage  Reply with Quote
quote:
Originally posted by Gugi100

Hi Victor,

Nice to see the Toronto design. It looks like a very tight fit. It gues it is a small peoples fit in which nomal people dont fit? :-)
I think the sight wil be sufficient, it will be like the sight we had in the 2011 Velox.
Gr GJ


they tell me it will still fit Aidan. The door opening is also going to be very small. Not such a factor for BM, but it might be an issue for ASME.

http://jnyyz.wordpress.com/
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W Hilgenberg
recumbent enthusiast

USA
251 Posts
Posted - 03/07/2012 :  16:40:30  Show Profile  Reply with Quote
There might be a chance that Mr. Rob English will be there this year as well. . .
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Speedbiker
human power supergeek

USA
1992 Posts
Posted - 03/07/2012 :  17:37:18  Show Profile  Reply with Quote
Rob? Cool! Riding what? Maybe he will rent Freddy's liner.
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Ben Goodall from Tri-Sled
Starting Member

Australia
48 Posts
Posted - 03/07/2012 :  21:11:02  Show Profile  Visit Ben Goodall from Tri-Sled's Homepage  Reply with Quote
@Larry....WOOF! WOOF!! :-)
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Larry Lem
human power supergeek

South Sandwich Islands
1971 Posts
Posted - 03/08/2012 :  07:09:49  Show Profile  Reply with Quote
Sweet Polly Purebred was pretty hot.

Larry Lem
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Victor Ragusila
recumbent enthusiast

Canada
337 Posts
Posted - 03/08/2012 :  07:16:14  Show Profile  Reply with Quote
the bike is bigger than it appears. It can fit Aidan, who is 6ft3 and has rather big hips and shoulders. His knees will be blocking his view, but for shorter people that will be less of an issue. The bike is also rather wide to accommodate the new steering mechanism.

The grooves you see are the reinforcement grooves. We are building the bike from the inside out, we first put the two halves of the mould together, then we layed the first (interior) carbon layer. We are now cutting core material to fill the grooves with. After we sand the grooves and carbon to be nice and smooth, we will lay up the last (exterior) carbon layer. Then we have to dig out the mold.

I will work again on the bike on Saturday, so i will take more photos with our building process then.

cheers

Victor
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Upright Mike
human power expert

USA
3005 Posts
Posted - 03/08/2012 :  18:59:56  Show Profile  Visit Upright Mike's Homepage  Reply with Quote
Victor,
make that thing smaller, dump the bars at the side steering! You are all too smart to make a bike that wide! Get someone small and very strong inside that bike again - like Amanda (6th fastest lady in the world, #1 fastest collegiate lady ever), or recuit a girl like Barbara Buatois. I want to see the first time a lady blows away all the men at the ASME competition by like 20 kph. Come on, quit messing around with monkey bars for big gorilla men! And I mean that in the nicest way, because I'm sure Aidan or Todd could easily pick up punny little me and my bike up with one arm. I want to see UofT move up to something like #2 or #3 fastest in the world, like Delft did last year (instead of 10th). I wish too you can use a smaller safety harness, instead of the big straps with metal buckles that ASME probably requires.
Edited by - Upright Mike on 03/08/2012 19:06:44
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Larry Lem
human power supergeek

South Sandwich Islands
1971 Posts
Posted - 03/08/2012 :  19:59:51  Show Profile  Reply with Quote
Or fill the bike to capacity with the strongest possible rider.

Larry Lem
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jnyyz
recumbent enthusiast

Canada
148 Posts
Posted - 03/09/2012 :  05:12:55  Show Profile  Visit jnyyz's Homepage  Reply with Quote
quote:
Originally posted by Upright Mike

Victor,
make that thing smaller, dump the bars at the side steering! You are all too smart to make a bike that wide! Get someone small and very strong inside that bike again - like Amanda (6th fastest lady in the world, #1 fastest collegiate lady ever), or recuit a girl like Barbara Buatois. I want to see the first time a lady blows away all the men at the ASME competition by like 20 kph. Come on, quit messing around with monkey bars for big gorilla men! And I mean that in the nicest way, because I'm sure Aidan or Todd could easily pick up punny little me and my bike up with one arm. I want to see UofT move up to something like #2 or #3 fastest in the world, like Delft did last year (instead of 10th). I wish too you can use a smaller safety harness, instead of the big straps with metal buckles that ASME probably requires.


Mike, we only have the budget, time and manpower to make one bike for both BM and ASME. Also, more of the entire team can participate at ASME, particularly since BM is always during the first week of classes. The team has a line on a new female rider. No worries.

(believe me, I was grateful that they built a very safe bike last year)

http://jnyyz.wordpress.com/
Edited by - jnyyz on 03/09/2012 05:15:37
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Victor Ragusila
recumbent enthusiast

Canada
337 Posts
Posted - 03/09/2012 :  17:23:46  Show Profile  Reply with Quote
Mike

The monkey bars serve two goals: the first is to decouple the torso movement due to pedalling from the steering movement. The point is to make the bike behave more like an upright, where you can use the handlebars for extra power and still steer safely. Whether this will work remains to be seen.

The second purpose is to make the bike wider but less tall. We want to get to a somewhat round cross-section. This would allow more laminar flow especially on the sides of the bike. Again, whether this will actually be better or not, we will see...

The point is to try different things from the Varna. I dont think we can build a better Varna, George and Sam have that design down pretty much perfectly. We might improve it slightly, but we would only get there if we spend 10 years developing it. We need to find a bigger shift to allow us to beat Sam.
Vortex and the new bike were both made to break the record, even if they also compete in ASME. With Vortex we had some aero mistakes, and small cranks that didnt allow us to deliver power. Also our RPM was low due to bike being jittery at high speed. The new bike tries to address all those issues. But if we would just make a Varna that fits Todd, we would not beat Sam. He has too much experience and the Varna is too refined.

I hope our ideas are faster.

Victor
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jnyyz
recumbent enthusiast

Canada
148 Posts
Posted - 03/10/2012 :  13:46:58  Show Profile  Visit jnyyz's Homepage  Reply with Quote
Here are some more pictures of the U of T team working on the new bike.

http://jnyyz.wordpress.com/2012/03/10/the-new-bike-takes-shape/

http://jnyyz.wordpress.com/
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Speedbiker
human power supergeek

USA
1992 Posts
Posted - 03/10/2012 :  15:29:07  Show Profile  Reply with Quote
Hey Victor, why didn't you use an expandling foam, then spline sand it to match the contour?
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purplepeopledesign
recumbent guru

Canada
568 Posts
Posted - 03/10/2012 :  16:10:11  Show Profile  Reply with Quote
@Jun

Regarding your blog: I think the old U of T bike is called Vortex, not Vector, which itself would be easily confused with the Versatron trike.

:)ensen.

Those who claim to be making history are often the same ones repeating it.

Video of my trike
http://www.youtube.com/watch?v=MdSLRD_2vzc
Photos of my trike
http://www.flickr.com/photos/purplepeople/
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jnyyz
recumbent enthusiast

Canada
148 Posts
Posted - 03/10/2012 :  16:48:55  Show Profile  Visit jnyyz's Homepage  Reply with Quote
Doh! Fixed now.

http://jnyyz.wordpress.com/
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Victor Ragusila
recumbent enthusiast

Canada
337 Posts
Posted - 03/10/2012 :  22:02:22  Show Profile  Reply with Quote
We didnt use expanding foam because we didnt like the material properties we could get out of it...It is not so great in shear, and we are not sure whether it will compress too much when we vacuum bag the top layer over it. It takes 3-4 people 1 day to cut and match all the foam pieces for half a bike, and maybe another day to fill in and sand it level. We are going to use spline sanding to get the foam smooth before he final layer.
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W Hilgenberg
recumbent enthusiast

USA
251 Posts
Posted - 03/23/2012 :  08:34:33  Show Profile  Reply with Quote
Update on the Obree story. Looks like there are a lot of non-recumbent enthusiasts who are getting interested in this.

http://www.bikeradar.com/road/news/article/video-graeme-obree-on-his-landspeed-record-bid-33525/
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Speedy
recumbent guru

USA
656 Posts
Posted - 03/23/2012 :  09:45:03  Show Profile  Reply with Quote
great to see such a well known celebrity getting this kind of attention for something we have passion for
Good on him ...
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britCpower
recumbent enthusiast

USA
247 Posts
Posted - 03/23/2012 :  14:18:53  Show Profile  Visit britCpower's Homepage  Reply with Quote
Its funny how many of my cycling colleagues have been enquiring as to how they can spectate at Battle Mountain this year. I would dearly love to attend as a pit crew person for someone but I fear I may be out of the country :(

my blog
http://britcpower.wordpress.com/
Edited by - britCpower on 03/23/2012 14:19:50
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sean costin
human power supergeek

Lesotho
1918 Posts
Posted - 03/23/2012 :  18:54:39  Show Profile  Reply with Quote
I re-engineered my washing machine with parts from my new crankset and now my clothes wash in world record time!



Sean
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Upright Mike
human power expert

USA
3005 Posts
Posted - 03/24/2012 :  05:01:16  Show Profile  Visit Upright Mike's Homepage  Reply with Quote
quote:
Originally posted by sean costin

I re-engineered my washing machine with parts from my new crankset and now my clothes wash in world record time!
Sean
Sean I give up, what size chainring is that - about 105 to 108 tooth? The teeth profile don't exactly seem evenly divided between the six webs. And people thought I pushed a big chainring. What do you have up your sleeve - besides this monster chainring?
Edited by - Upright Mike on 03/24/2012 05:03:22
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OpusthePoet
recumbent guru

USA
675 Posts
Posted - 03/24/2012 :  16:26:51  Show Profile  Visit OpusthePoet's Homepage  Reply with Quote
My laser cutter guy made a 140 tooth chainring for me as an experiment to see how big we could build one in his shop. It just cleared the bed of his lathe when we thinned it down enough to work with a Campy 10sp chain (2004 width, now would have to be a scosh thinner). As I recall it was about 22" in diameter and fit a 135mmBCD. We had to make a spider to fit the ring before we could mount it in the lathe. I think I still have it around somewhere, I calculated it to go 80 MPH with a 559-28 tire and an 11 tooth top cog in a single stage drive

Opus

My gas is up to $0.99 a burrito, $5.99 for premium and I'm only getting 10 miles to the regular burrito. Dang $0.99 burritos are smaller now.
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Victor Ragusila
recumbent enthusiast

Canada
337 Posts
Posted - 03/24/2012 :  16:47:15  Show Profile  Reply with Quote
what interests me is the interior gear pattern on the spider. Looks like the outside of a planetary gear system, which makes it a rather interesting solution....
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Larry Lem
human power supergeek

South Sandwich Islands
1971 Posts
Posted - 03/24/2012 :  17:05:19  Show Profile  Reply with Quote
Does Sean have a spare chainring in case this one gets injured? Not drilling out the webs would have been acceptable.

Larry Lem
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