Sigma Labs Inc (SASI)

[silversmith]

The cameras are the printer OEM's token nod to the need for better reliability. Everyone in the whole wide world associated with metal AM knows camera imagery doesn't get you much down the road to knowing what's going on during the build. I've talked to metal print engineers at two companies that said they hit the start button, and really have no idea what actually will come out at the end of the print. Camera imagery only sees crap after it has gone bad. You can have a big, deep melt-pool with low energy, and you can have a big, deep melt-pool with high energy. The same goes for small pools. Knowing the dimension of the pool with cameras only tells you that maybe things are okay. If the camera says it's bad, it's beyond bad. It's over. Almost no physics comes from the camera data. Almost no predictive info comes from the camera data.
The printer OEMS camera stuff is only the smallest step toward knowing what is going on in the build.

All the best,
Silversmith