A350 Proximity sensor not working?

360′?

Did you mean 180°?

I’ve seen reports that using the wrong screws to attach the plate causes alignment issues and that some people have learnt that they didn’t for their table correctly into the depression in the bottom.

Yews, sure, I meant 180°. I’m pretty sure that I did that correct. I really can’t imagine how anything misaligned could lead to that problem. Even if the bed is higher or lower in the back, why does the sensor not recognize it?!

How did you attach the aluminum plate to the heatbed? I tried this Foldback Brackets. But obviously this interferes with the printing area. Running fort attempt of calibration the nozzle went right into one of brackets?!

It is currently just held on with blue tape on the four corner edges.