I made this some years ago when I was repairing my 66 superminx estate. No longer got it Thought it might prove useful to you guys doing bodywork.
Find yourself a decent 4 inch door hinge weld two strips of the same gauge
metal that you want to joddle,one to the outside edge of the hinge and the other to the edge on the opposite side nearest the centre. put it in the vice and drop the sheet in ,squeeze it up and Bobs your Uncle
" oh and leave a gap between the two stripps when the hinge is closed of about 2 mm"..
cheap homemade joddler