tug
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| posted on 24/4/11 at 10:15 AM |
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Chassis all welded
It isn't a seven replica, but a rear engined car (R1+50Kw motor).
Here is a bit of cad:
Bought the steel:
48.3x2.9mm round tube
30x60 thickness 3mm rectangular tube
33,7x2,9mm round tube
Freaking heavy ! (and expensive)
Lets bend some tubes :
Yes, that is a Citroėn C5 in the back:
Time to use the templates:
Roll over cage :
The pink tape is from this:
Did the same, but with CATIA V5R19 and cut the tape with scissors
Rear all spot welded:
Chassis FULLY(well almost) spot welded:
Cheap gloves only lasted 3 weeks:
Chassis out of the welding room(with some parts not attaced to make it look pretty):
Chassis took me "3" weeks to be built, which means about 75h of work.
Next step (Wednesday), is to steam pressure wash the grease off the tubes, then paint it.
I was thinking about buying regular paint from my hardware store to prevent rust.
Look like this:
Rust prevention for 5years of so. I don't see the point of buying expensive paint chassis.
Idealy I would need to powered coat it, but I don't have a giant oven to bake it. Same goes with real paint, no room to bake it. Cold
galvanisation looks bad (from what I have seen), no room for hot galvanisation. Epoxy maybe.
All the tubes aren't in place, but I have to paint it. Because I am doing it at my university, they want a good looking project(and clean), so I
must paint it, I told some that is stoopid. But whatever.
If you want more pics, feel free to ask.
Cheers
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Miks15
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| posted on 24/4/11 at 11:18 AM |
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Looks good, took me alot longer than 3 weeks to have mine fully welded and it was fairly simple ha
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Badger_McLetcher
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| posted on 24/4/11 at 01:45 PM |
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I like your fabrication techniques mate, but IMO that chassis looks in serious need of triangulation! Nice design though 
Edit: Also out of interest, how'd you stop the pipe from kinking with those benders?
Badger
[Edited on 24/4/11 by Badger_McLetcher]
If disfunction is a function, then I must be some kind of genius.
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designer
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| posted on 24/4/11 at 05:06 PM |
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Hell of a workshop you have!!
Why do you bend tubing on the floor?
Have you tubemitre?
http://techniclub.net/tutoriels_articles/logiciel_aide_sur_tubemiter-t650.0.html
[Edited on 24-4-11 by designer]
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tug
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| posted on 25/4/11 at 06:39 PM |
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quote:
Originally posted by Badger_McLetcher
I like your fabrication techniques mate, but IMO that chassis looks in serious need of triangulation! Nice design though
Edit: Also out of interest, how'd you stop the pipe from kinking with those benders?
Badger
[Edited on 24/4/11 by Badger_McLetcher]
Yes the chassis will have more triangulation, but according to Comsol 3.5 it is pretty rigid. Having a big diameter helps being stiff.
quote:
Originally posted by designer
Hell of a workshop you have!!
Why do you bend tubing on the floor?
Have you tubemitre?
http://techniclub.net/tutoriels_articles/logiciel_aide_sur_tubemiter-t650.0.html
[Edited on 24-4-11 by designer]
Thanks! The workshop is actually Rennes 1's mechanical engineering's quarters. It is a plus because there is everything there, all the
machines/help I need. Downside is that the hours sucks, end at 4:30pm...can't work weekends.
How do you bend tubes? If not on the floor?
Wish I had heard of tubemitre! seems freaking easy to use. Doing it on Catia was a bit tedious.
On another note, all the measurements are at a 1mm tolerance, angles to 0.5°. Pretty pleased the work.
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designer
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| posted on 30/4/11 at 06:11 PM |
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quote:
How do you bend tubes? If not on the floor?
Your bones are obviously a lot younger than mine, but I bend on a bench.
I'm down the road in the Vendee.
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