Keith Tanner
Keith Tanner MegaDork
10/19/18 9:53 a.m.

Check out the hubs on this thing. Beautiful. And do I read that right - 100g wheels? That's less than 4 oz for those who don't spec metric. These kids have access to some high end fabrication capabilities, but it's allowing them to do wild things.

Awesome. Makes me want to go back to school just to play with this stuff.

http://www.racecar-engineering.com/articles/formula-student-tu-munich-tech-analysis/2/

alfadriver
alfadriver MegaDork
10/19/18 9:56 a.m.

In reply to Keith Tanner :

In the old days, part of the constraint was a cost target.  Seems to have gone away, very drastically.

mazdeuce - Seth
mazdeuce - Seth Mod Squad
10/19/18 9:58 a.m.

I briefly looked at the FSAE that was brought to the challenge. Those students are so far outside the normal car guy box that I'm not sure they can even see our box. With 3d printing and those sorts of brains being unleashed on the world, we're in good hands as a sport.

GameboyRMH
GameboyRMH MegaDork
10/19/18 10:00 a.m.

That's impressive but believable when you consider the size of an FSAE wheel. The hub-mounted motors are an interesting choice, I guess with their super-light uprights and wheels it could have a comparable unsprung weight to an axle setup plus a lower overall vehicle weight.

GameboyRMH
GameboyRMH MegaDork
10/19/18 10:01 a.m.
alfadriver said:

In reply to Keith Tanner :

In the old days, part of the constraint was a cost target.  Seems to have gone away, very drastically.

Indeed, and this isn't even the biggest-budgeted team...that would be TU Delft.

Ram50Ron
Ram50Ron Reader
10/19/18 10:16 a.m.

Those German teams are so heavily bank rolled by the OEM's over there it's not even funny.  Their budgets and tech always made us Baja guys feel like toothless hillbillies.

Keith Tanner
Keith Tanner MegaDork
10/19/18 10:29 a.m.
alfadriver said:

In reply to Keith Tanner :

In the old days, part of the constraint was a cost target.  Seems to have gone away, very drastically.

It's still identified as part of the judging, so it's still there. I'm guessing the cost of the tools is not included, kinda like the challenge. A 3D printed hub may not be that expensive.

Here's a sample cost spreadsheet: http://www.fsaeonline.com/content/E217_University_of_Akron_FSAEE_CR_Supplement(rev2).pdf

Keith Tanner
Keith Tanner MegaDork
10/19/18 10:29 a.m.
Ram50Ron said:

Those German teams are so heavily bank rolled by the OEM's over there it's not even funny.  Their budgets and tech always made us Baja guys feel like toothless hillbillies.

It's probably a pretty good return on investment by the OEMs, though!

z31maniac
z31maniac MegaDork
10/19/18 10:54 a.m.

That's bonkers. Some serious design skills. 

Driven5
Driven5 SuperDork
10/19/18 11:04 a.m.
Ram50Ron said:

Their budgets and tech always made us Baja guys feel like toothless hillbillies.

Are you sure it was just their budgets and tech? 

freetors
freetors Reader
10/19/18 9:24 p.m.

 

That is a very impressive piece there! From what I understand a lot of these super high end Formula Student builds are heavily influenced by the (very generous) sponsors. Also regarding wheel weight, I would absolutely not doubt their stated weight, look how large the hub is, there's hardly any rim there! For those that don't know, a VERY large percentage of Student/SAE cars break during these events. They're reliability is quite poor because many of them do not get tested thoroughly enough. I would be really interested in seeing how all of this stuff holds up in competition.

alfadriver
alfadriver MegaDork
1/30/19 7:54 a.m.

Canoe city.  Don't click the link

John Welsh
John Welsh Mod Squad
1/30/19 7:59 a.m.

Zombie thread. Canoe deleted. 

jhoos
jhoos New Reader
4/8/19 1:31 p.m.

Hey. I want to make my resume become a real "spammer" instead of my current "bad spammer" job. I understand that any ambiguity or reticence in resume may cause employer for additional questions and doubts. Therefore I`m thinking to order a resume from specialists, to avoid mistakes.  Unfortunately, it Is not worth it!

alfadriver
alfadriver MegaDork
4/8/19 1:40 p.m.

another canoe?

sleepyhead
sleepyhead Mod Squad
4/8/19 3:53 p.m.

In reply to alfadriver :

apparently.  so hard being a student these days... they all seem to be resorting to a life of paddles and spam

Mr_Asa
Mr_Asa Dork
7/8/20 5:26 p.m.
Ram50Ron said:

Those German teams are so heavily bank rolled by the OEM's over there it's not even funny.  Their budgets and tech always made us Baja guys feel like toothless hillbillies.

I was part of USF's FSAE team.  As treasurer I successfully lobbied for our highest budget ever, approx $80k from the school.  We had 2-3x that much donated coming into us in materials, labor, and other things.

German teams still made us feel like toothless hillbillies.

Mr_Asa
Mr_Asa Dork
7/8/20 5:29 p.m.

Oh dog damnit.  Is this another berking canoe necro-bump?

Paddling shiny happy people.

 

On topic, though.  Over two years of optimization, I was able to remove 4-5lbs of unsprung weight from the corners.  We were the lightest steel frame car at Michigan for a couple of years running.

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