I do enjoy metal shaping as a spectator sport.
This guy was doing demos at the NEC at the weekend. He's a time served apprentice and a teacher. As well as his own workshop he teaches at Leeds on the restoration courses and also at a deaf school. There's a number of interesting bits on his YouTube account - I looked at a tour of the MGB shell production and behind the scenes at Aston Martin. There's also some stuff at a Rolls Royce restoration place and the Vaxhaul Astra line and a tour of the Morgan factory. Alas no commentary or edit but interesting enough.
What I watched (with the ironing) yesterday was a long series on panel making for a Wolsley Swallow. Its a pre war Hornet chassis with Bill Lyons bodywork: he who became SS and then Jaguar. He goes through annealing, bossing out, wheeling, welding. He does it in real time - no fast forward or "here's one I made earlier" which is inspiring and also gives time for a bit of chat on all sorts as he goes.
http://www.youtube.com/watch?v=pORiCkDE_7II also looked at one making an ali mini boot lid at a show as a demo. In contrast to the highly shaped bits of the Wolsley tail its an example of a "low crown" panel, if not as extreme as a door skin or roof. Was interesting that he still started "hitting it with a stick" for all it was a bat rather than a mallet and for rather less time than the deeply shaped parts. He wasn't doing it all on a wheeling machine.
Is a wheeling machine essential? It certainly looks to be a big time saver for all its possible to smooth everything out with a hammer and stake. Speaking with them at the show it doesn't HAVE to be a big or expensive one to smooth out the lumps and bumps. Its when it comes to applying enough force to squeeze shape into metal that it needs to be sturdy, and obviously larger for larger panels but there's always the option to make small bits and weld them together.
This type of Italian hammer was new to me in contrast to the American ones:
http://www.youtube.com/watch?v=kb5phUptd9I