I enjoy reading all the comments but apologize that
there are so many I can’t answer individually. I’m delighted that my
new videos have been so enthusiastically received, which is reflected in
the majority of the comments. The videos aren’t perfect though so below
each video I’ve compiled the comments about things I omitted or people
thought were misleading. A few comments added wonderful additional
information so I’ve included them as well.
No direct criticisms of the facts in the Springs episode
but a couple of good ideas for things I could have included. First a great
torsion spring used for the suspension of the Citroen 2CV and many VWs.
Its simply a rod about 25mm in diameter, fixed rigidly on one side of the
car and supported but free to twist on the other side. Second that only
small springs are coiled cold with the steel already hardened. Large
springs, like car suspension springs, are coiled hot and then heat treated
to harden them.
Another suggestion was to include the air bag springs
often used on trucks and trains. These reduce vibration compared to
conventional springs.
