Gas-powered waterjet cutter (follow-up) and other project updates

Build a capable waterjet cutter from a commercial pressure washer.
Sources:
Cutting head - www.accustream...
Orifice - www.accustream...
Mixing tube (nozzle) - www.accustream...
Pressure washer - www.amazon.com...
Pressure washer hose coupling (for brazing into cutting head) - www.amazon.com...
eBay CNC milling (eg) - www.ebay.com/i...
Applied Science on Patreon - / appliedscience