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Re: Frame Perimeter Tolerance
No margin? If you design something to be 28 inches square, there's a 50-50 chance it will be under and a 50-50 chance it will be over after fabrication. If the inspectors see a lot of robots close to the limit they may improve their measurement accuracy, in which case, even a 1/64 inch overage will be out of limits. The rules give no tolerance on the limit.
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