How come the biggest shell I can put on my controller .001?
Did you not receive this error message when creating the Shell?
You should have gotten that error message, and if you click "ok" then it should do the shell anyway. It worked for me on your model and the shell was successfully screated at .050 (I don't know what your target is). If you didn't get the error message and the shell didn't work, then you might have at some point clicked the "Don't show this again..." box and clicked cancel, so then it wouldn't do the shell anyway.
Try restarting solidworks, thicken the shell, and the error box should come back, and then just click ok and the shell should work.
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