Build Diary Thread/Ordering Steel??

[ozzy1]

19mm is 3/4inch in old money.Doesnt really make a lot of difference 19mm/20mm just depends on supplier.42m of 25x25x2 will be enough for any cockups etc (sorry mistakes ).ERW,Seamless,SHS again all have a seam on the inside so wouldnt worry too much.ERW does have a squarer edge though.
CTWV50 put your location in your profile as it may help in future.

[Talonmotorsport]

SHS/HRS is known as black and is a crap material to work with. It has very rounded edges which means blades tend to side along it till they bite and comes covered in black graphite type oil which gets every where. Spend alittle more on ERW 25x25x2mm or 1"x1"x14gauge I ordered some on wednesday it was £12 a length 6mtr nominal.

[Tilly819]

you can go down to 16swg if you want to save a little weight

tilly

[eSteve]

Chris,

I created a spreadsheet (Excel) last year when I was working out how much steel to buy and what the cost would be.

The spreadsheet lists all the steel lengths from the book drawings and calculates what lengths of steel and of what type you need to order.

If you know the unit price and the unit length (for my supplier it was 6 m) it will calculate the cost and if you'd like to lengthen the cockpit a little (as I did) you can do that too and the quantites are updated.

In the end I over-ordered on the steel quantities given in the spreadsheet, since I wanted to fabricate a few other bits and pieces (e.g. a welding trolly), so you had better check it before you start placing orders and spending money. I also bought some 25 x 50 which (as the book says) can be subsituted with multiple lengths of 25 x 25.

If you think it maybe of use to you (and if anyone else would like a copy) pm me with your eMail and I'll send you a copy.

There is a snippet of it from a screen-shot:

[pbdata]

Im glad to recive a copy of your excel sheet for steel. Thanks Kjell