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Stepper or Servo for G11?

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#1 Space99

Space99

    Mariner 2

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  • Joined: 14 Aug 2008

Posted 02 March 2009 - 01:57 AM

Hi All,
got a question. I'm about to get a Losmandy G11 with no
drive. I have a Meade Autostar DS kit.
My question is should I adapt the DS servo (perhaps with
Pittman motors) or go with stepper?

The servo always need a reduction gear-train, but the EQ6 system is just a stepper and one stage of spur-gear.
Not much noise, backlash etc. Simple. But I have to get it...$$$$

But I already have the Autostar....and it is a nice system.

What would you do?

Mick.

#2 chboss

chboss

    Viking 1

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Posted 02 March 2009 - 12:11 PM

Hi Mick

I do not know if it is easy to Adapt the Meade Autostar, I fear not.

If you are looking for a well priced solution I can recommend this Do it yourself project:
http://translate.goo...htm&sl=de&tl=en

There is an update in the works that allows Higher Goto Speeds and some other goodies:
http://translate.goo...htm&sl=de&tl=en

You have to be aware that all stepper motors use a reduction transmission to achieve smooth movements.

regards
Chris

#3 Space99

Space99

    Mariner 2

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  • Posts: 220
  • Joined: 14 Aug 2008

Posted 03 March 2009 - 04:02 AM

Thanks Chris,
The DS motors are a bit fragile and just a bit difficult
to adapt, but not impossible.
My real question is who has the G11, which system is the preference?
Stepper or the Servo?
Mick.






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