Sagging, or noticeable downward curvature in beams, serve as a significant indicator of structural compromise demanding immediate attention. This phenomenon often results from excessive loads, inadequate support, or material deterioration, leading to beam deformation over time. Hogging is the opposite: the beam curves upward in the middle and downward at the ends. Are any of the properties of the beam, either the split part going to the photodiode, or the part that continues through to the collimating lens, altered in any way (compared to if there was no beamsplitter between them)? I have never read anything that would suggest that anything is altered by. Point is know how or hire someone that does. Wood glue! Not sure about making it stronger but it is a bad sign if they DON'T check. Could mean they are rotten inside. This is actually a sign of good wood. Those are the rules Dems the. We are encountering ghosting from back reflection of our current beamsplitter plate. However, depending on the orientation of my wedge beamsplitter, ( but always with the beamsplitter coating facing the part) I. hi iam having extension built and today the joiner informed me the steel beam is sagging 6mm in the middle its 6mtr long but had to have a plate welded on one end too short Its 8inch holding 2 smaller beams supporting a gable end and 2 flat roofs Rang the architect he said its fine if it didn't the.