Alarm error unless there's 10lbs

I have an E2. My laser only cuts if I have a 10lb weight on the lid. If there is no weight, I get the alarm error. I understand this means there is a lack of connection between the metal plates on the lid and the 2 metal prongs in the base. I’ve tried to clean them and make that connection more firm, but no luck. Anyone have thoughts as to what else I could try?

Try sliding the lid laterally, along the hinge line a little. I had one with some play in the hinges, and if the lid wasn’t centered I would see this happen.

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Wow. You rock. That was it. Thanks! I will miss getting that nice little work out, though.

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