Hi I am a newbie...
This is a homemade 30 ton metal bender, press, punch I built recently.
The main uprights are 4" x 1/8" box. The bottom and middle cross sections are 6x4" RSJ's and the top is an old railway rail.
I am still playing & improving it, but it can tight fold 1/8" sheet 12" long with the a removable 'V' block and easily bends 1/2 flat bar when removed. I have successfully punched 1/8 sheet at 1" diameter using some scrap metal and a washer.
The bottle jack has a quick release handle to save constantly using the jack bar.
The main bender is mounted to 8x17" M/S which is 1" thick, the weight of this alone brings the bottle jack down so no need for springs.
This plate can be removed and replaced with a new piece for pressing.
I have two you tube video's, not great quality, but they show it working: