TP models with known stress cracking

[cogitordi]

I have owned an X32 for several years and it is used every day for e-mail, Web research, and office documents. A stress crack has developed on the top right side of the palm rest, above the "IBM ThinkPad" insignia. The crack appears to have started in the upper left corner of the hard disk cover. It is about 2 cm long. (I am not worried about it.)

This brought me to wonder if
a) this is a known tendency for the X32 model, and
b) what other ThinkPads have a tendency to develop stress cracks over time.

[yak]

I've heard a lot of T60 develop a crack in the structural frame, next to the VGA port. Of the three I have, one had it for sure (I fixed it with some epoxy). Not sure about the other two, I'm not the one using them and I haven't opened them in a while.

[RealBlackStuff]

T23 regularly cracks the palmrest near the left- and right-bottom corners of the keyboard.
Left hinges of the 14" models T4x break often.

[jronald]

I have 2 X30's that have cracked from about 2 inches to the left of center, to the left mouse button. Runs at a diagonal.As well as at the right arrow. None of my X31's have the same cracks.

Ron