Olin Lathrop wrote:
> Dave Tweed wrote:
> > We want to move this
> > box along a horizontal linear track that's about 300 mm long, with a
> > sinewave motion that has a period on the order of 1.0 seconds.
>=20
> Does it need to be a true sine wave, or would general wiggling around of
> about the right magnitude and frequency be good enough as long as you kno=
w
> exactly where the box is?  What I'm thinking of is a circular motion adde=
d
> to the linear track motion.  That will be a lot simpler mechanically than=
 a
> true reciprocating sine, but you still know exactly where the box is at a=
ll
> times.

I'm pretty sure that the motion needs to be all in one axis, and we need to
know both position and velocity along the track fairly accurately. If we ha=
ve
a preprogrammed sinewave profile in a motion controller, we just need to kn=
ow
where it is in the profile in order to have both.

-- Dave Tweed
--=20
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