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Space99
sage
Reged: 08/14/08
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Stepper or Servo for G11?
#2958191 - 03/02/09 01:57 AM
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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.
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chboss
professor emeritus
Reged: 03/24/08
Loc: Tokyo Japan
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Re: Stepper or Servo for G11?
[Re: Space99]
#2958787 - 03/02/09 12:11 PM
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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.google.com/translate?prev=hp&hl=de&u=http%3A%2F%2Felegance.rajiva.de%2Felegance%2Findexs.htm&sl=de&tl=en
There is an update in the works that allows Higher Goto Speeds and some other goodies:
http://translate.google.com/translate?prev=hp&hl=de&u=http%3A%2F%2Felegance.pro.rajiva.de%2Felegance%2Fpro%2Findexs.htm&sl=de&tl=en
You have to be aware that all stepper motors use a reduction transmission to achieve smooth movements.
regards
Chris
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Space99
sage
Reged: 08/14/08
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Re: Stepper or Servo for G11?
[Re: chboss]
#2960257 - 03/03/09 04:02 AM
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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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