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Looks like an interesting way to do it, and it makes sense for something
like a plate reader. I haven't seen anyone use linear motors for Z for
other types of microscopes though. Has anyone seen such a thing?
Craig
On Sat, Jun 20, 2015 at 7:46 AM, jens rietdorf <[log in to unmask]> wrote:
> *****
> To join, leave or search the confocal microscopy listserv, go to:
> http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy
> Post images on http://www.imgur.com and include the link in your posting.
> *****
>
> Hi Craig, (commercial response)
>
> in case of a power cut, the Z motor will drop without causing any damage.
> The system has an absolute position sensor, so it will realize the motor
> has dropped and move it back to the set position once the power is switched
> on again.
>
> (repositioning accuracy is 30nm, not 60nm as mentioned).
>
> Kind regards, Jens
>
>
> On Fri, Jun 19, 2015 at 12:35 PM, Craig Brideau <[log in to unmask]>
> wrote:
>
> > *****
> > To join, leave or search the confocal microscopy listserv, go to:
> > http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy
> > Post images on http://www.imgur.com and include the link in your
> posting.
> > *****
> >
> > Do the linear motors have a retention function to maintain position with
> > loss of power? I've only used such motors for XY applications, and never
> in
> > Z because they would drop like a rock when the power is cut.
> >
> > Craig
> >
> > On Fri, Jun 19, 2015 at 9:27 AM, jens rietdorf <[log in to unmask]>
> > wrote:
> >
> > > *****
> > > To join, leave or search the confocal microscopy listserv, go to:
> > > http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy
> > > Post images on http://www.imgur.com and include the link in your
> > posting.
> > > *****
> > >
> > > Hi Anton,
> > > Acquifer.de uses linear motors for imaging machines with 30mm
> > (millimeter)
> > > travel range 60nm repositioning accuracy.
> > > Contact me offline for more info.
> > > Kind regards, Jens
> > > (freelance consultant @Acquifer)
> > > Em 18/06/2015 06:03, "Anton Kamnev" <[log in to unmask]> escreveu:
> > >
> > > > *****
> > > > To join, leave or search the confocal microscopy listserv, go to:
> > > > http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy
> > > > Post images on http://www.imgur.com and include the link in your
> > > posting.
> > > > *****
> > > >
> > > > Dear colleagues,
> > > >
> > > > In our LM core we normally use piezo stage inserts (e.g. PRIOR) for
> > > > acquisition of Z-stacks. Those work fast and reliable but very have
> > > limited
> > > > range (100~400 um). Moreover, stage inserts are often bulky and we
> > > > experience a lot of problems fitting large specimens/slides into
> them.
> > > >
> > > > Obvious solution would be to get rid of piezo inserts and use base
> > motor
> > > > instead (which moves objective instead of sample). This would give
> more
> > > > manoeuvre space at the stage and much bigger travel range.
> > Unfortunately
> > > > most of base motors are rather slow and often lack required
> precision.
> > > >
> > > > At the moment I’m looking into purchasing of new scope and thus
> > wondering
> > > > if
> > > > there have been any advance in microscope base manufacturing.
> > > >
> > > > The question is - are there microscope bases which would move
> objective
> > > > with
> > > > speed and precision matching those of piezo inserts? If so, I would
> > > greatly
> > > > appreciate if you could share your experience with those.
> > > >
> > > > Sincerely,
> > > > Anton.
> > > >
> > > > Anton Kamnev, PhD
> > > > Imaging Manager
> > > > Mechanochemical Cell Biology Building
> > > > Division of Biomedical Cell Biology
> > > > Warwick Medical School
> > > > The University of Warwick
> > > > Coventry, CV4 7AL UK
> > > > tel: +44 (0) 24-7615-1934
> > > > cell: +44 (0) 782-408-6941
> > > > email: [log in to unmask]
> > > >
> > >
> >
>
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