Re: AP900 yellow light
Thanks Rolando,toggle quoted messageShow quoted text
When I was tasked with designing foam inserts for our instrument's
shipping case, I recall seeing an ad. The challenge was "how to foam a
briefcase containing a 2 dozen flat of eggs". One approach was to fill the
entire space with foam - good for making omelettes.
The correct solution was a simple "open grid" of foam strips - which to some
seems counter intuitive.
Correct foaming decelerates the item SLOWLY, buy safely, before it
collides with the insides. This requires detailed knowledge of forces
involved, mass, and bearing surface - on all 3 axes. The maximum deceleration
must be "less than" what the most sensitive "part" inside the instrument can
sustain. It's all well and good to stop the mount from hitting the case, but
the motor bearings, etc, inside the mount can suffer from whiplash, even if
the mount is protected by the design. That's why some boxers are killed in the
ring by a hit fro a well padded glove - the skull stops without a scratch, but
the brain inside, hits the skull wall.
Always worry more about the "weakest" link, inside a foamed case.
Wish AP made well designed, and airline guerrilla drop tested, foamed cases
for their mounts.
----- Original Message -----
Sent: Wednesday, October 17, 2007 4:18 PM
Subject: Re: [ap-gto] Re: AP900 yellow light
In a message dated 10/17/2007 3:13:04 PM Central Daylight Time,