Don't worry I've got some steam pipe coming! 6mm wall heavy gauge in 3" nominal bore should be plenty strong enough!
 
Dr_evil said:
Don't worry I've got some steam pipe coming! 6mm wall heavy gauge in 3" nominal bore should be plenty strong enough!
Click to expand...

if you are using that then buy welded elbows for you bends.. 90,45,22-1/2degree should due you and give you a decent looking results
 
I was just going to bend it on a mandrel bender but if you can buy weld in elbows in those degrees that'll do me and be easier.

Gives me a chance to use the DC tig welder
 
I was planning a chamfered edge anyway if welding, I'd do at least 3 passes

One root pass with tig or a 1.6mm 7018 followed by two cup walking passes or cover passes with a 1/8th
 
Dr_evil said:
I was planning a chamfered edge anyway if welding, I'd do at least 3 passes

One root pass with tig or a 1.6mm 7018 followed by two cup walking passes or cover passes with a 1/8th
Click to expand...

use 3/32 7018 after root pass with tig. You should be able to dress everything down so it looks like a bend job and a nice finish, invisible welds;)

Welded elbows come with beveled edges, leaving just the pipe to bevel
 
I've got plenty of 3/32nd rods but will probably buy a pack of sealed murex ones just to be safe!

Run on DC positive around 80A I'd guess seeing as I use 120A on AC. Was kinda thinking of leaving the welds seen as I can get a real nice fish scale if I walk the cup or do an overlapping stack of dimes if I go free hand
 
Dr_evil said:
I've got plenty of 3/32nd rods but will probably buy a pack of sealed murex ones just to be safe!

Run on DC positive around 80A I'd guess seeing as I use 120A on AC. Was kinda thinking of leaving the welds seen as I can get a real nice fish scale if I walk the cup or do an overlapping stack of dimes if I go free hand
Click to expand...

7018 should be smooth as a babies arse. stacked dimes is your 6011 type rod
Go to you tube they have some good welding pipe with 7018.

here is a good one for you.....Stick Welding 2 inch Pipe Cover Pass - 6g Pipe Welding Test 2" Schedule 80 - YouTube
 
Na not cage. Just a bar.

Doc i still have that pipe bender if you want. Think dad wanted £80. Never been used. Does up to 3" pipe
 
Don't use 6mm wall tube, this vehicle is going to weigh about 4 tons and will be no faster than a 2 1/4
Get a proper roll cage in kit form and weld it up yourself. 3.2 blue band or 2.5 cds.
 
Thor1950 said:
7018 should be smooth as a babies arse. stacked dimes is your 6011 type rod
Go to you tube they have some good welding pipe with 7018.

here is a good one for you.....Stick Welding 2 inch Pipe Cover Pass - 6g Pipe Welding Test 2" Schedule 80 - YouTube
Click to expand...


Think I've seen that one already, name looks familiar but will check it out

chunkymunky said:
Na not cage. Just a bar.

Doc i still have that pipe bender if you want. Think dad wanted £80. Never been used. Does up to 3" pipe
Click to expand...

Need a mandrel bender not pipe mate, if its mandrel could be interested!

owl said:
Don't use 6mm wall tube, this vehicle is going to weigh about 4 tons and will be no faster than a 2 1/4
Get a proper roll cage in kit form and weld it up yourself. 3.2 blue band or 2.5 cds.
Click to expand...


Its only for one hoop around the top of the cab with the spare wheel mount on the rear I think so should be ok but CDS could work I suppose
 
u7yre8uh.jpg
 
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