Simple question

[Flatjack]

Do you Braze, Mig weld or Arc weld a space frame chassis?

[boyracer]

Which are you more proficient at using ?
Some people still braze chassis's together but I believe this is because it is what they have. More people likely to have oxy-set than mig or arc welder. Mig easier to use for novice, lots of settings but once setup no problems with slag inclusion. In australia though Migs don't pass pipe standards (gas pipelines) as they can produce a porous weld. Neatest looking when done by a professional would have to be TIG (Tungsten Inert Gas), my choice anyway. Lot of rollcages over here put together with TIG.
Really method does not matter so much as long as it holds together.
Need to be careful with chrome moly (not sure) has increased carbon content over normal mild steel tube (I think) so may require preheating to ensure the weld takes properly.
Hope I haven't confused you too much.
What are you building ??

[Flatjack]

Well I have access to all three.

I have done Mig welding myself to a reasonable standard.
A friend can arc weld.
And another friend can braze

What I want to know is whether there is any advantages to each style I have been told that is you braze it then after a bump it is easier to remove the cross member and replace it. However I have been told not to braze suspension components, as they are in a warm area which could reduce their integrity.

Finally I am building a 750 racer. It is a small circuit sportscar about 70hp and 350Kg.