Quote:
|
Originally Posted by BillCloyes
Also...
Keep in mind the possible loads that these members will experience (use a healthy safety factor- depending on location, it could be very difficult to replace at Competition). Run some stress and strain calculations with the proposed reduced cross-sections before you start going completely crazy (2.75" hole in a 3" wide tube  ) with the hole saw...
No one wants to have the piece that they spent hours swiss-cheesing break in half...
my two cents
-Bill |
If Alex1072 can provide a better picture of how the aluminum member will be used, then I can probably give a good idea of just how far you can take the speed holes. But I'd hate to give a number, say for a simply supported beam, and then find out you were actually cantilevering the load. They are different problems with different answers.