Where to find cast iron straight edges?

[wizard]

You can also get rough cast sections from MSC and McMaster-Carr. Not cheap though. You can also try Carr-Lane for castiron sections, unfortuantely they don't have anything precisely designed for what you want. You could produce servicable straight edges with some of their parts. The box section might be handy in shorter lengths.

There are certainly other sources for castiron sections. The biggest problem is you don't know if the parts have been seasoned. None of them are really optimal for the intended usage either. Surprisingly it is almost impossible to find anything on the net. You could find a local foundry and see if they will cast up what you need. You have to hope they have a pattern around otherwise you become a pattern maker.

Thanks
Dave

[Rustybolt]

These days large straight edges are made of granite. They are more temperature stable and don't need as much care as the cast iron ones.

[MikeZee]

Just don't drop it.

[Andre' B]

These guys should have what you need, probably made out of rock instead of iron, just a question of how much $$.
http://www.tru-stone.com/pages/smp.asp

And anouther one, maybe less expensive.
http://www.mojavegranite.com/

[Fireman11]

I can offer the straight edges as per your requirement we are manufacturer of Straight edge I section (Parellel type and camel back type) We can also offer Traingular straight edges. Granite & Steel Straight edges manufactured on request www.jashmetrology.com

How much would a 2 foot long camel straight and a 4 foot camel straight cost?
Shipping cost and lead time?

[RICHARD ZASTROW]

Or for iron stuff www.buschprecision.com tooling catalog

Dick Z

[Mcgyver]

How much would a 2 foot long camel straight and a 4 foot camel straight cost?

I've a 30 and a 60"....problem with the 60 is lifting the darn thing, I mean i can carry but its bloody big to spot with.

look up Stephen Thomas at Practical Machinist, good guy, very accomplished machinist and woodworker. He's selling straight edges.