What more would you anticipate? gE, Honeywell, and Materialise. These are pretty awesome with only Three. Could SGLB's plate be to full if more was added? I hope they can handle it. giddy in Houston. lol.
And congratulations. Those folks down under have plenty of money to invest.
I too am excited about the arc-welding printer. In the Q&A they made mention of their process with respect to arc-welding printers:
Maybe they've convinced GE that an arc-welding 3D printer would be a good complement to other 3d printing technologies? They are materials scientists, after all, and have been consulting for GE so that could be part of what's going on in there. Just speculating.