Sounds like pressure washing vs sand blasting. Only difference between the two (... | Hacker News

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		daenz on May 14, 2022 \| parent \| context \| favorite \| on: Shaped Charges – Sheet of copper going through 1ft... Sounds like pressure washing vs sand blasting. Only difference between the two (aside from drastically different effect) is sand blasting has an intake tube to suck sand into the water jet.

fortran77 on May 14, 2022 [–]

People have made DIY waterjet cutters with pressure washers and a sand feeder: https://www.youtube.com/watch?v=Lg__B6Ca3jc

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