On Tue, 15 Jan 2008 19:48:49 +1100, Grumpy top-posted:

If you are an ENGINEERING student, get off your arse and do some research.
Google for " beam deflection" and you should be able to find a plug in
formula to do the job for you. You should know that every beam will have
some deflection, even if very small. Using computer programmes to do
calculations without understanding the basis of the calculation is a recipe
for disaster.


He's a googlie - he'll never come back to look for answers; he expects
the answer(s) to show up in his email.

On AOL. ?:-/

Thanks,
Rich

wrote in message
...
im a student making a i beam from scratch i need to know the weight i
can hold them without having deflection dimensions are 1/8" steel
3' in the midddle 3' top and bottom if any one has info they can help
plz contact me