Hi all, Here's a link to a paper that I have come across before in the past in using a laser. Found it again with just a little searching. Link: https://drive.google.com/file/d/1zU6PWKmVUfp2ZYzYh0l3mZhvUM6Pud2R/view?usp=drivesdk Chris Reeland Ladd Illinois USA Sent from my Samsung Galaxy Tab® S _______________________________________________ Tesla mailing list Tesla@xxxxxxxxxxxxxxxxxx https://www.pupman.com/mailman/listinfo/tesla