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Posted to rec.crafts.metalworking
Bob Engelhardt Bob Engelhardt is offline
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Default I need a good IR absorbing surface

On 7/14/2015 7:12 PM, wrote:
... I thought about maybe
taking the thing apart and putting a mirror inside that would make the
sensor see at an angle so that it wouldn't detect the underside of the
countertop but then it might open when someone walks past. ...


How about putting the mirror under the counter top?