Richard, I have a shrinker/stretcher but also used a small tool I made on the milling machine to get the step properly shaped.
First I folded a strip of about 5 cm and stretched that until the base panel was plain again.
Then the fin was bent and afterwards shrunk until it was roughly right.
Finally the finishing was made by means of the special tool.
The C-frame device is a combined machine, below shrinker/stretcher and pneumatic planishing hammer top.
I have also modified an old small shrinker/stretcher to achieve more working depth.
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Flaminia GT 3C, Flaminia Convertibile 3C, Flavia Convertibile 1.8, A112 Abarth, Flaminia Coupé 2.5, Fulvia Sport 1.3S, Unimog U900
Last edited by Tedesco; 12-15-2013 at 05:43 AM.