Thread: pic: 604's Arm
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Unread 18-03-2007, 23:05
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Re: pic: 604's Arm

Quote:
Originally Posted by Daniel_LaFleur View Post

That being said, this is a great example of how Lightening holes can often affect structure. Your arm failed because (in addition to the rough play on the field) you removed (lateral) load bearing material. If the material for that particular lightening hole was not removed the arm probably would have had enough lateral structure to survive. Removing that material so close to a fixed (lateral) structure (your sproket and tower) means that the entire load of the lever arm is applied to the (now reduced) structure.
Which is why our replacement arm for Nationals will have almost no lightening holes in it.. xD
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