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In lugnet.build, Alvin Telanco writes:
> In lugnet.build, Mario Ferrari writes:
> > > I am interested in trying to build mechanisms found in read life things • like
> > > cars and was thinking about power steering servos when I started playing
> > > about with pneumatics. Perhaps this is a bit hard for Lego:-)
> >
> > Hi Al,
> >
> > what you ask is not possible because the Lego pneumatic system is,
> > precisely, *pneumatic*. In real life cylinders that are designed for
> > position control are hydraulic and not pneumatic ones. This difference is
> > very important because you can compress a gas but cannot compress a liquid.
> > A pneumatic system has a very high degree of elasticity, and in practical
> > terms this means that position is a function of both the applied pressure
> > AND the encountered resistance.
>
> Ok. So you can't do it with pneumatics.
I wouldn't say that at all. Its just that you'd need a good supply of
compressed air (there's plenty of compressor designs about) and a good feedback
mechanism. This is by no means impossible - just a bit tricky.
ROSCO
trimmed lugnet.general from groups.
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