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Aftermarket Push-To systems

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#1 Atl

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Posted 21 November 2012 - 01:40 PM

Are there any commercially produced push-to systems to put on home made dobs out there that anyone knows about?
Thanks

#2 Dave Ittner

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Posted 21 November 2012 - 02:31 PM

Not that I am aware of but have you researched putting setting circles on your dob and then adding an inexpensive digital angle gauge?

http://www.harborfre...auge-95998.html

Google setting circles for a dob. Someone in our club did this for his 8" dob. I have pictures if you are interested.

#3 City Kid

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Posted 21 November 2012 - 02:31 PM

Sky Commander from Sky Engineering is one.

#4 Traveler

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Posted 21 November 2012 - 02:34 PM

Wildcard's Argo Navis is another (controller). They also making digital setting circles.

#5 Gastrol

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Posted 21 November 2012 - 02:52 PM

If your ground board is round you can easily add an azimuth setting circle. You use your smart device to locate objects.

#6 dan_h

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Posted 21 November 2012 - 03:29 PM

Are there any commercially produced push-to systems to put on home made dobs out there that anyone knows about?
Thanks


I recently picked up a used but very useable NGC MAX down in the swap shop on CN. Lots of documentation on the net.

dan

#7 beatlejuice

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Posted 21 November 2012 - 04:57 PM

Check out the Halo in the vendors forum

Eric

#8 Atl

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Posted 21 November 2012 - 11:23 PM

Anyone use these?
http://www.astronomy.../ScopeScout.htm

#9 jgraham

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Posted 21 November 2012 - 11:40 PM

A possible alternative is a laser Point-To system. Briefly… take an el cheapo GoTo system and add a laser pointer to it. Use the el cheapo GoTo system to point the laser at your target, and then follow the beam out to the end with your scope. I was originally going to use a spare ETX system for mine, but I ended up putting together a system from spare parts; a #884 tripod, DS-2000 mount, 2045S scope, and an Orion laser pointer. I put this together to help me point my homebuilt 16.5” f/6.5 Newtonian, but the beauty of it is that it works with any scope. I’ve recently been using it with my LightBridge 16 and it works like a charm.

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#10 csa/montana

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Posted 21 November 2012 - 11:48 PM

Not that I am aware of but have you researched putting setting circles on your dob and then adding an inexpensive digital angle gauge?

http://www.harborfre...auge-95998.html

Google setting circles for a dob. Someone in our club did this for his 8" dob. I have pictures if you are interested.


There is a thread that is a Sticky at the top of this forum with many showing how they put "degree/setting" circles on their dobs.

Degree Circles

The HALO actually was born partially due to this thread.

#11 Dave Ittner

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Posted 22 November 2012 - 01:26 AM

Thanks Carol. I completely spaced out and missed posting a link to that sticky post.

#12 tezster

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Posted 22 November 2012 - 08:50 AM

As a slightly different option, you can take a look at Astro Devices' wireless interfaces; they can be connected directly to encoders.

This then allows you to wirelessly connect to an Android tablet or iDevice running compatible planetarium software (SkySafari, for example) and use that as your "DSC" computer.

#13 Achernar

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Posted 22 November 2012 - 12:32 PM

Sky Engineering offers their Sky Commanders, JMI offers digial setting circles, and there there are those offered by Argo Navis. All can be fitted to Dobs and I know the Sky Commanders and JMI's can also be mounted on equatorial mounts as well. I use JMI's on my 10-inch and Sky Commanders on my 15-inch. The JMI's are good, the Sky Commanders are better. I do not have any experience with the Argo Narvises, but they are much more expensive the the other two choices. You will be fine with the Sky Commanders.

Taras

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#14 audioaficionado

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Posted 27 November 2012 - 11:14 PM

The aforementioned HALO Setting Circle-Leveling Base looks interesting, but I don't have much confidence in composite that thin with the full weight of a dob plus accessories sitting on it.

#15 Mike B

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Posted 28 November 2012 - 01:07 AM

My observing group has used John's "laser Point-To system"... or a version of it; we used my Dob, having both SkyCommander *AND* a green-laser! I'd cue the object on the SkyCom, find it in the scope's view, then "light-it-up" with the GLP... and all my buddies would aim their scopes down my GLP's beam.

We called it "cheating". Was eminently more fun than playing fair. :ubetcha:

An "el cheapo" GoTo scope from WalGetCo, having funhouse optics & plastic eyepieces, but a functional computer-locator, would make a marvelous platform for mounting a GLP... & spend hours cheating one's way thru the heavens!
:lol:

#16 John Carruthers

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Posted 28 November 2012 - 08:47 AM

I like the Manortronic 'AstroFix' 2 axis locator for Dobs, around £87/$139

http://www.manortron...auges.com/Astro

#17 rick-SeMI

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Posted 28 November 2012 - 08:56 AM

Look ma no wires :cool:

http://www.astrodevi.../BETI/BETI.html

SkyCommanders encoders and arms may work with this system.
In Fact you may be able to use their cable also since the BETI uses an 8-pin RJ-45 too.

And a cheaper route would be to use the CUI AMT-102 capacitive encoders.
I got a PAIR of them from Digi-Key for around $48 when I built my Dave Ek, Bluetooth capable DSC's, for the DobStuff 16" depicted here.

http://www.cloudynig...Board=atm&Nu...

#18 tezster

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Posted 28 November 2012 - 12:57 PM

Look ma no wires :cool:

http://www.astrodevi.../BETI/BETI.html

SkyCommanders encoders and arms may work with this system.
In Fact you may be able to use their cable also since the BETI uses an 8-pin RJ-45 too.


I can confirm this does work - it's the exact setup I use :)

#19 Project Galileo

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Posted 28 November 2012 - 02:17 PM

If you have a droid with GPS try Skeye. It is available at the google play store for free or there is an upgraded pro version for $9. It works quite well. The free version is loaded but the pro version is well worth the $9. I use with with my telescope mounted as a push to devise and as a mobile planetarium much like google sky map. It is really an amazing app. Check it out.

#20 orion61

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Posted 28 November 2012 - 05:01 PM

Are there any commercially produced push-to systems to put on home made dobs out there that anyone knows about?
Thanks

JMI (Jims Mobile Inc) makes a great system
The JMI Max, I still have a MiniMax no longer available but going strong. works great!
Also makes the Micro Max. they can be used for virtually any type of mount.
just choose from the menu EQ, az Alt, Dob.
I have owned 2 and they are very accurate, mine centers in the field every time at 2000mm FL! better than my LX200!

#21 Jon Isaacs

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Posted 28 November 2012 - 06:44 PM

I like the Manortronic 'AstroFix' 2 axis locator for Dobs, around £87/$139

http://www.manortron...auges.com/Astro


Some one was selling these out of Arizona a few years ago. At the time, the issue was the accuracy of the azimuth measurement. Have you used one?

Jon






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