The first FSAE Demo car chassis in Hong Kong

[Scania]

because it is only a Demo, so the materiel is very casual, & the size a little bit big
http://us.f6.yahoofs.com/hkblog/bftiTw__DOT__bBhIk8vBt30ND_1/blog/20080821082808343.jpg.jpg?ib_____D0Pi9H8Z5

[frenzy]

if one has the material laying around, i think it's a good idea to build a test chassis to check the proportions.

a thing i noticed is your main roll hoop - as far as i interpreted the rules, the "uncut section" has to extend all the way to the lower frame bars and not to the upper ones?

[Scania]

a thing i noticed is your main roll hoop - as far as i interpreted the rules, the "uncut section" has to extend all the way to the lower frame bars and not to the upper ones?

===============================================
because it still not finish

[Tilman]

The rear part of the frame will not be very stiff i guess ... its built out of rectangles, not triangles ...

[Scania]

we will make some triangles next Monday

[Diablo_niterider]

i think its a great start , we made our first one out of pvc pipes we get for real cheap .
crude but fast and effective , got the entire frame done in 2 hrs to get the idea of the real thing .

[Scania]

Originally posted by Diablo_niterider:
i think its a great start , we made our first one out of pvc pipes we get for real cheap .
crude but fast and effective , got the entire frame done in 2 hrs to get the idea of the real thing .
because it's not only a demo chassis, we will make a demo car with CB250 engine

[Diablo_niterider]

oh cool we did something similar to using a 150 cc engine , we made the car for the sole purpose of marketing and proving it to others who did not believe that we could do it , we built it with our own money , we spent just around $1600 for the entire thing of which a significant bit was for making it look good .
after 2and a half years it still is in running condition

best of luck to you guys ,

regards

[Scania]

Originally posted by Diablo_niterider:
oh cool we did something similar to using a 150 cc engine , we made the car for the sole purpose of marketing and proving it to others who did not believe that we could do it , we built it with our own money , we spent just around $1600 for the entire thing of which a significant bit was for making it look good .
after 2and a half years it still is in running condition

best of luck to you guys ,

regards
150cc? @.@
2T or 4T?
how fast is it?

we are worried about can cb250 move the car or not....

[Horace]

Scania,

Are there any FSAE teams in Hong Kong? Just wondering...

[Scania]

Originally posted by Horace:
Scania,

Are there any FSAE teams in Hong Kong? Just wondering...
we are building the first team in HK
are you from HK?

[Diablo_niterider]

it was a two stroker bougth for $125.
the car was capable of pulling speeds of 75kph, which i think is decent. our weigth was around 150kg without driver.

cb250 should pull it around for sure. will be clumsy at launch but will work.

[Horace]

Originally posted by Scania:
<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by Horace:
Scania,

Are there any FSAE teams in Hong Kong? Just wondering...
we are building the first team in HK
are you from HK? </div></BLOCKQUOTE>

Yeah, check ur message inbox

[duyigang]

hi,Scania.

The thing i noticed is the weight ratio of FF&RR.how about the target of your weight ratio? Just seen from your pic.I think maybe there is a little heavy in FR parts.

Then i'm intersting in what's idea of ENG mount.
The current rear space is limited,i think.

BTW:Are you from Hongkong? HK university?I work in guangzhuo city of China. nice to meet u~

[Patrick Mok]

It is good to have a new team. Being the first in Hong Kong must be very special. Hopefully, this university project provides credibility to motorsports in general for Hong Kong.

[ccsharry]

Awesome!! Great to see you guys putting some effort in to be the first!! Keep it up and ask more questions if you're in doubt!! (but make sure you did try finding the answer 1st otherwise you might get some unpleasent responses!!)

All the best!!

[DanGrey]

WOW! I never know that I will find this thread. Okay tell me that im digging it from a super dead thread or whatsoever.. But its just so amazing reading and remembering the first demo. As far as I can remember i can see that wall thickness was really too much and the tube diameter by that time is just too little.. Imagine that whole thing weighs as much as most other finished cars. Wow. its like a flush-bulb memory Im having here..

By what i observed, most people of FSAE teams like cars the most in the engineering faculty, and very rarely any of the talented engineers. Was there a second demo or something like that? i cant find it in the old files here.. I dont have any news about it when I when to California..

___________________________
Time flies so fast..
I wish, i can to go back..

[SweetHead]

Wow.. you got a load of memory.

[dezmoondo]

Hey, I am very happy to hear that you guys are putting the first FSAE team in HK. Is the team part of any organization or school? I am from Hong Kong too. Good luck.

[BerlinSV]

So you can enter the FSAE china fisrt
The team like BIT &THU is powerful

[moo moo racing]

Hi guys,
I was working with PVC pipes for making a mock chassis recently, and i wanted to make it pretty close to the actual cad model. I tried a few things to attach the pipes rigidly to each other at joints using :-
1. PVC solvent (used to make joints leakproof in plumbing) - not strong enough
2. Duct tape - holds, but is not exactly as rigid as i'd like
3. Plaster of paris - Did not adhere to the PVC surface well, and was really brittle
I also tried melting the pipes into each other :P , but it was a bit of a disaster.

I could not use any fittings due to the oblique angles at joints.
Has anybody else faced this issue?
Can anyone point me in the right way?

[Canuck Racing]

Are you notching the pipes together as you would for welding? That alone will help with strength a lot, not to mention be good practice for the real thing. http://fsae.com/groupee_common/emoticons/icon_biggrin.gif

I'd try hot glue for sticking the tubes together. Hot glue will cure pretty quickly, you can easily lay it on thick if you don't have a perfect fitment of tubes, and is mostly removable if you have to change something.

[Kevin Hayward]

Mocking with PVC is not incredibly accurate, and should only be used as a very quick guide. In that case the tape is good enough.

I prefer to mock with steel. It is amazing how quickly you can mock something up with whatever cheap steel you can find. Just rough end preps and tacks and a group of 3 people could put together a full frame mockup easily in a day, that will be much more accurate and rigid than PVC.

In 2011 the mock (made in 2 half days) at ECU ended up as a rolling chassis with a lot if final parts attached. It was incredibly easy to do and informed the final chassis design much more than a month of solid modelling.

Kev

[moo moo racing]

@canuck:i am notching it, i have some other ideas in mind now.
@kevin hayward : I believe i will buy some cheap MS pipes of small OD and use spot welds.I think that should do the job.
Thanks