I had a similar experience as I posted earlier.
I ended redoing it based on a different design based on a thread I found here. See:
https://sawmillcreek.org/showthread....lection+sensor
Somewhat simpler and is working. The sensor fits into the same size hole.
It is working. I think it's more sensitive as it flashes when I am putting a lot of chips into the bin, but that doesn't seem to be a problem.
Bob