Build a capable waterjet cutter from a commercial pressure washer. Sources: Cutting head - https://www.accustream.com/waterjet-parts/accustream/a2/a2-cutting-head/12272.html Orifice - https://www.accustream.com/waterjet-parts/accustream/accustream-orifices-nozzles/ruby-diamond-orifices/11007-XXX.html Mixing tube (nozzle) - https://www.accustream.com/waterjet-parts/accustream/accustream-orifices-nozzles/nozzles/12781-045-30.html Pressure washer - https://www.amazon.com/Excell-EPW2123100-Powered-Pressure-Washer/dp/B01MZEIYM7 Pressure washer hose coupling (for brazing into cutting head) - https://www.amazon.com/gp/product/B01MXW4GG9/ref=oh_aui_search_detailpage?ie=UTF8&psc=1 eBay CNC milling (eg) - https://www.ebay.com/itm/USB-CNC-ROUTER-ENGRAVER-ENGRAVING-CUTTING-3-AXIS-3040T-300X400MM-MACHINE-MILLING/272920186416?epid=21006871220 Applied Science on Patreon - https://www.patreon.com/AppliedScience