I could never have fit a hack squat machine in my small gym, so I built one to interlock in my power rack, and then fold away flat. See final version here: [ Ссылка ]
Using scrap wood for a frame, plywood offcut, and old longboard (zero cost), I was able to build an early prototype and have proof of concept before before building the real thing
For reference: The wood frame is 2x6x8’ for my 30” deep Rogue monster rack. The 8’ long wood frame pieces are same distance apart as my skateboard’s wheels. Pocket hole construction. Steel rod is 7/8” diameter for my Rogue Monster rack with 1” holes. Plywood is 3/4” thick and purposely not attached to 2x6 frame. Once installed, my frame rests at about 45 degrees. My angled footpad is Rogue slant board 30” wide / 30 degree. I’m using Elite FTS SSB (safety squat bar). My Rogue spotter arms are 24” long.
