Homemade Chassis question

[epic_username]

Im looking to make a crawler chassis, it will be sitting under a Marui Big Bear datsun body. I just would like to know what materials I should use. I would like to use steel cause I only have a MIG welder. Just what it best? Some 1/2 inch C channel or steel rod? What size? Not looking for perfectly scale, just kind of scale. Also what is cheaper to use for suspension, leaf sprung setup or 4 link? I plan on using either T rex axles or Gmade Portal axles.

Thanks guys!

 

[klabeaume]

1/2 box tube. Bend it to your desired shape and split it down the middle with a band saw.

 

[OTHGbronco82]

Alright, how do you bend it?

 

[klabeaume]

Alright, how do you bend it?

Pie cut and reliefs cuts, bend it, weld it back together. Split it.

 

[epic_username]

Sounds easy enough, I just happen to have tons of that lying around. And that way, both sides are exact.

 

[klabeaume]

Sounds easy enough, I just happen to have tons of that lying around. And that way, both sides are exact.

Yep, you got it right. Only have to mess with it once then both sides are perfectly symmetrical. "thumbsup"

 

[epic_username]

Thanks for your help man, Ive also breifly looked up making your own 4 link bars, but would like to know what a good bar size is for strength

 

[808DA6]

OP: If you have an oxy torch, you could heat and bend also. A little less work.

 

[benoj]

When I make my own links I use either 1/4" steel or aluminum solid rod along with occasional 3/16" titanium rod and thread it to the desired size with a dye


Sent from my iPad using Tapatalk

 

[Mr.Joshua]

Here's a thread with some helpful info as well http://www.rccrawler.com/forum/tools-procedures/368622-bending-frame-frame-rails.html

 

[epic_username]

Heres what Ive got so far. Its nothing pretty, and its not done yet. Gonna wait till Ive got axles and shocks to finish it thenn I will finish all my welds. I used the pie/relief cut method so its square. I know in the pic one cross member looks crooked, and it is. It matches the body mount holes on the body, they are crooked for some reason. This took about an hour

Thanks for everyones tips, whish I had seen that thread sooner, would have liked a smooth radius

 

[epic_username]

When I make my own links I use either 1/4" steel or aluminum solid rod along with occasional 3/16" titanium rod and thread it to the desired size with a dye


Sent from my iPad using Tapatalk

What thread for 1/4 inch?

 

[RootBreaker]

not too bad.. better than i can do right now.. as i havent tried it yet!!!!

 

[808DA6]

Them are Datsun hubcaps. 521 or 620?

 

[stelerzman]

Nice job on the frame."thumbsup"

 

[epic_username]

Them are Datsun hubcaps. 521 or 620?

1962 Jaguar Mk2 "thumbsup"

 

[epic_username]

Thansk everyone "thumbsup"

 

[LAIDBACKLINNIE]

Awesome job!!! It gives us newbs a chance to see how it's done!! I have always used the old fill the tube with sand and cap both ends and heat a little and bend....but that works better with round tube