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  • Kraftformer

    This is news to me.. but just wanted to share an interesting

  • #2
    Interesting video. I wonder if the guy in the video at 2:20 has a poster of Vanna White in his shop.



    • #3
      Very nice machines. I really don't want to know how much they cost though.
      Free software for calculating bolt circles and similar: Click Here


      • #4
        That is an amazing machine.


        • #5
          Awsome. part was smoken at 1:30 hehe.

          Machine has some SERIOUS rigidity however judgeing by how big it is..

          Bet I could'nt even afford the dies..

          I wonder why he allways places the low speed button then the higher speed button afterwards.
          Play Brutal Nature, Black Moons free to play highly realistic voxel sandbox game.


          • #6
            Not a jesse james fan, but found this link .. looks like a smaller
            homeshop version:



            • #7
              Kerry Pinkerton has one of these.. He has a meet coming up next month in Northern Alabama.. He can teach you more in a few hours than you can learn on your own in years. I've not heard from him, he has had some health problems I was told by a mutual friend.

              My pride and joy.. REALLY NOISY.. REALLY shapes metal fast..

              (shaping metal) = Stretching (thinning) changing the surface area and thickness causing the metal to rise or shrink (metal gets thicker) "into shape".. Rolling metal, bending metal does not change the surface area.. only curves it, metal stays same thickness.

              Building a motor cycle fender? stretch the middle all around, shrink the sides and it rolls over in a curve.. A combination of stretch and shrink.. THE t-cowl I build there on youtube, I could not get to the middle of the front corners to "shrink" so I stretched the top and bottom, the middle then had less area and it "fell" into shape like it had been shrunk.

              You catch the bug.. you can create things via a lost art form other people just scratch their heads at.. It don't take fancy tools to learn how. See David Gardiner in England there.. all hand crafted..

              My shoulders, my elbows, my knees are wore out from Harley riding and Martial arts.
              I either needed the power hammer, or to quit.. I love my hotrods, I didn't want to quit.
              Last edited by Dawai; 11-21-2011, 06:49 AM.
              Excuse me, I farted.


              • #8
                There are a few in the USA, at least several hundred, but most are in the shops of guys who do body work on million dollar cars.
                For instance, these guys have two of em.

                I saw one in the flesh once, Ron Fournier has one. He didnt run it for us, though.

                Here is the actual company website-

                They start at something like fifteen grand for the tiniest ones, and rapidly head north, with most of the larger ones in the 25k to 40k range.


                • #9
                  not to hyjack the thread but. . .

                  i have an older pulmax, same idea, height of ram movement and variable speed control, but all adjustments are manual. i refer to it as an english wheel on steroids.
                  i got a bunch of different dies with it and have made some pretty fancy things. it will do a hinge , the part you would slip the hinge pin thru with a real fancy die set, plus punch or cut straight or circles, dome, and louvers, off-sets and beading. it also has a 4 ft. by 8 ft. x-y table set up with thompson type ball bearings for mass repeat of a project. i had to take that off as it took up too much room in the shop. it has a 48 inch throat opening .

                  for shrinking and stretching i have two little manual machines like seen at the car shows. amazing what can be done with metal with some thought. i have made some awsome rocker panels for a 32 nash. many curves and folds, and it actually worked. . . . my thought was to reproduce antique car body parts when i retire, i guess thats now. . . .

                  i need to make some more dies for it so i can do more. . . .

                  i know, i should take pictures, someday. . .


                  • #10
                    Big Da,

                    YOU think a man with three bad discs would quit lifting car engines by hand?
                    I just moved two out to move the vortec 5.4 under the bench. It's getting demo'ed to put the whole top, MPFI onto a 65 small journal 327... I think it'll rev quicker and higher than that newer one with "cast bottom end".

                    These have to be on a controlled stroke machine, or.. the smile behind the thumb there smacks the metal and "stretches it" instead of shrinking it as designed.

                    The thumb (part at a angle) creates a "ripple" and as you withdraw the part from the machine the smile "hammers" the ripple flat into Itself making the metal thicker and "shrinking it" Plans are still posted on that allmetalshaping site last I saw.

                    These can be used on a pullmax, dedicated Shrinker machine, or a Harbor freight air impact with a lever arm and a limiting bolt. You adjust it and blue dye the smile till it is even across. Relief around the thumb is so the metal can Roll a tuck.

                    A pair of "tucking" forks can be made with HF pry bars welded side by side and polished.. there is good video on youtube on how to hand TUCK Shrink. Anyone can "stretch metal".. you just have to Whack it real good.. it takes a while to learn to shrink it.
                    Excuse me, I farted.


                    • #11
                      They have a place in Switzerland. I might have to go down there and have a look.
                      Location: The Black Forest in Germany

                      How to become a millionaire: Start out with 10 million and take up machining as a hobby!


                      • #12
                        Drifting slightly off topic, when I was working in the aircraft industry in the 1980's, they used a wide variety of techniques for sheet metal work. Ranging from english wheels, to these beasts
                        "Stretch wrap formers"
                        They had two, one of about the size in picture and one 300 ton monster.
                        The large one was mostly used for forming skin panels for engine cowlings for Rolls Royce RB211 engines for the Boeing 747. It was an enormous piece of kit, that sat in a pit about 8 feet deep, with massive swinging arms with jaws that held the Al alloy sheet.
                        This as the name indicates was stretched and then wrapped around a former to the shape of the cowling. The Fan on the RB211 was 86 inches in diameter, so you can imagine the size of the external cowling side panels. From memory the sheets being stretched were between 4 and 6 feet wide and about 10-12 feet long. I can't remember what gauge. There were some production failures where the sheet failed in shear during the stretching phase. That did go with a bang that could be heard across the shop floor. The plant shut in 1987, and I have no idea whether the machine was scrapped or was moved to another site.