the deflections i am measuring are usually within 15mm. some are just 1mm or lower. but i do not require precise measurements as my work is only to check if the beam deflection is within the limit.
@dauwerda. this is exactly what i am doing. you got it to the point.
pros for this technique
1...
Dolts way is definitely a good suggestion. hanging a tape measure or thread to the 2x4 can make it even easier, since pointing the laser at a tiny cross section becomes a challenge when the distance is big. but the problem is that this requires access to the crane, and that is not feasible in...
some good suggestions here. measurement from the ceiling works in cases where there is a ceiling and there is access to the crane bridge. but in many cases it is not so or not feasible. as of now i use Pythagorean theorem to calculate. heres how i do it
1. i bring the crane to the testing point...
any experts here who can advise on how to measure the deflection for the overhead crane under load test.
Measuring the distance under no load condition is easy with a laser distance measurer. but the issue arises when the distance needs to be measured in the same place, when the crane is lifting...
