My version of LPE3i based on scotch yoke system (original ideas from LPEpower) but with new switches ! It works smoothly at 200RPM with 4 hand-pumps and without friction (thanks to the scotch yoke)….
Unimog V2 TT
Road Service Unimog
Plymouth Hemi Cuda
An ideas I have seen on an ideas-book. It uses racks to program primary displacements. Designed in 2009