The first step is to make the baseplate and upright section. The baseplate is a C-shaped piece of 10mm plate. This one was welded from three pieces of steel, but could be cut from plate if you have any.
The height of the channel is the height of the jack body when fully compressed, so this will vary according to the jack you have. Vee the joins, tack them into place, checking that all is square and flush with the front edge of the baseplate, and then fully weld.
This toe jack … used the basic principle of shed economics — if it is on the shelf in the shed, it is free
The lifting carriage has a socket that is a snug fit to the top of the jack ram and is made from 50mm round with a hole bored to match the ram diameter. The height of the carriage is from the
To make the lifting carriage, clamp the front and sides of the carriage and tack together. Weld on the connecting pieces from the socket to the sides of the carriage. These are 40x5mm flat to each side, and a piece of 25x50mm RHS to the front. Weld a flat plate on the top
The sides of the carriage tacked to the front