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I challenge myself to combine a hydraulic jack, a scissor jack, a trailer jack, and a high lift jack all into one. Oh and I want to add a vise to it. I fabricate this king of jacks and put it to the test to see if it fails!
Minion squares
https://fireballtool.com/minion-square-pair/
Mantis Pliers
https://fireballtool.com/mega-square/
Mega Square
https://fireballtool.com/mega-square/
Shop Shims
https://fireballtool.com/products/40pc-expanded-shop-shim-set
XLT Power Tapper
https://fireballtool.com/xlt-power-tapper/
Mini Pneumatic Chamfering Tool
https://amzn.to/3RnuVVu
Here are the links for the Jack Vise (both PDF and DXF)
PDF Only: https://fireballtool.com/products/diy-jack-vise-plans-pdf-only
DXF + PDF: https://fireballtool.com/products/diy-jack-vise-plans-dxf-pdf