what is every one using for sand rail frames

[hpiontherocks]

i have noticed a lot of sand rail builds and was wondering what was being used to do so. someone said 3/16 brake line but wouldnt it be done after one crash. and how are they putting it togather. i know its brazzed but was is everone using for a torch setup

 

[krazykrawler]

the thing is once you put it all together it is extremely strong in fact i can stand on all my frames and i weigh 160 pounds.Its like your skeleton ,you can break one bone easily but if it is in a system it will be stronger in the end.Thats not to say some tubes may get dented or slightly tweaked,but hey look at the scale speed of these things.They do anywhere from 300 scale mph to 700 scale mph ,anything with that much speed is bound to get damaged