Discussion of the May '17 Update

[AhnoldZ]

Due to ‘magic’.

From:

Autofocus saves the day

Didn’t notice how warped this piece of Proofgrade Maple ply (actually two are twist warped a fair amount). So put this in without noticing, and fired off one of the sheets of puzzles. I was sort of glancing, but not really looking too close, until I realized parts were dropping during the cut phase by over 1/4", and a few weren’t falling down completely so were at a tilt as they wedged against other pieces!!! I was standing like a hawk after that waiting for the fire as the beam defocused. Pfft.…

Dan said:

Autofocus saves the day

Please do file support tickets about warped material - it’s great data for us! Autofocus is still in its infancy - there’s a lot of future work to do. Right now it takes a single point measurement; multipoint is forthcoming.

Henry said:

Autofocus saves the day

So how did this work so well?

Dan said:

Autofocus saves the day

We designed for a large margin of error. When we get multipoint autofocus, we’ll be able to run the head faster as we can reduce the MoE. We also have a lot of secondary things that help: high quality optics reduce scatter and improve spot size, beam quality, the single-point measurement is deadly accurate (within 0.1mm), etc. Allows a few things to vary and still let you be successful.

It’s a ‘he said, he said’ kind of situation.