Straightness of steel/alumunium box section

[Ross77]

Can I be picky and say torque is measured in Nmm, not N/mm. That's stiffness.:tup:

Duh me bad only fair since its normally me who's picky still if thats all I got wrong I'm happy, thought it was going to be ripped apart.......

Haha, I thought that just wasn't going to mention it. Strictly speaking isn't it N·m! But not a Joule...

you should have, I don't mind, everyone makes mistakes and you never know everything, I'm by no means perfect and isn't that the point of the forum that mistakes get corrected?:naughty:

I don't think it has to be Nm tho (dynamics maybe), as manufactures rearrange units to fit tables or make them look better with big numbers, I used mm to keep the units the same as you quoted, as long as you keep then the same through out the calc it doesn't matter as pointed out its force x dist (Nm) and then divide by dist to get a force (N).

What are you studying at Uni?

[Jonathan]

What are you studying at Uni?

Electronic Engineering at Nottingham - purely because I've always been interested in electronics and that sort of thing. I'm hoping they'll let me use the workshops there since it'll be a bit disappointing not having access to big milling machine/lathes after having had access at school for several years. I was in the workshop every lunchtime/free period in the 6th form.