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German Equatorial Mount (Homemade)

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#1 starfall00

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Posted 08 November 2012 - 04:43 PM

Hello,

I'm gladly here to show you my german equatorial mount homemade, totaly motorized and controlled by computer with PicGoTo system. It was necessary two years for me to construct it, after a long time on project's table and some prototypes, finally, I was able to finish it.

I believe this mount may be more robust than a EQ-5, at least, was projected to be. Here in pictures, it is supporting a refractor with Jaerger's objective (83mm F/12) constructed by me too. But, it will work with a newtonian reflector 6" f/5 and a refractor 3.5" F/5.5 for auto guiding.



Regards,
Delberson.

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#2 Jay Wise

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Posted 08 November 2012 - 04:53 PM

Beautiful, fabulous, amazing! You need to take it to Stellafane (spelling?) Share some closeups and details on the drives.

JayW :goodjob:

#3 starfall00

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Posted 08 November 2012 - 04:56 PM

Another Picture.

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#4 Mkofski

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Posted 08 November 2012 - 05:37 PM

Beautiful! What kind of wood did you use?

#5 Jaimo!

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Posted 08 November 2012 - 08:13 PM

VERY, VERY Nice!

:waytogo:

Jaimo!

#6 Cotts

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Posted 08 November 2012 - 11:23 PM

Judging from the polar axis altitude I would bet it is a looooong drive to Stellafane....

Remarkable mount nevertheless!!!

Dave

#7 starfall00

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Posted 09 November 2012 - 07:06 AM

Beautiful, fabulous, amazing! You need to take it to Stellafane (spelling?) Share some closeups and details on the drives.

JayW :goodjob:

Thanks for all Jay Wise,

It's a dream for me go to Stellafane, but for now it isn't possible. I will do some new pictures with more details and post here.

Best regards,
Delberson.

#8 starfall00

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Posted 09 November 2012 - 07:15 AM

Beautiful! What kind of wood did you use?

Hi Mkofski,

Here, in Brazil, this wood is known as "angico vermelho", but its scientific name is Anadenanthera macrocarpa, it has high density and resistance. It's a little hard to work with it, due its hardness, but it gives great results.

Thanks,
Delberson.

#9 starfall00

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Posted 09 November 2012 - 07:32 AM

Judging from the polar axis altitude I would bet it is a looooong drive to Stellafane....

Remarkable mount nevertheless!!!

Dave

Hi Dave,

Very perspicacious you are. Yes, would be a long drive to Stellafane. Beyond low latitude, it is on other hemisphere, in other words, 16º South, a little bit after equatorial line.

Thanks,
Delberson.

#10 starfall00

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Posted 09 November 2012 - 07:33 AM

VERY, VERY Nice!

:waytogo:

Jaimo!

Thanks Jaimo!

#11 starfall00

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Posted 09 November 2012 - 07:46 AM

Hello,

Here is a new picture, this shows some details of worm gear, gearing system and its step motor. In the black enclosure there is one step motor with a 31:1 reductor; this spring pushes the gear against a disc fixed on polar axis producing the correct friction between them to move the axis and protect the gear. With this system, I don't need to lock/unlock nothing when I need to do any manual adjustment.

Regards,
Delberson.

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#12 starfall00

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Posted 09 November 2012 - 07:52 AM

I need some help to determinate how much weight this mount can support. Anyone can help me?

The sky over here is completely cloudy, but when it is clear, I will try to gauge the periodic error of this mount. So, I will estimate how precision I will get with it.

Regards,
Delberson.

#13 Dennis_S253

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Posted 09 November 2012 - 08:19 AM

nice work, looks good

#14 mercedes_sl1970

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Posted 09 November 2012 - 09:24 AM

That is an excellent piece of work and quite an inspiration. Congratulations.

Andrew

#15 zjc26138

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Posted 09 November 2012 - 09:31 AM

Beautiful mount. Great job!

#16 mikey cee

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Posted 09 November 2012 - 10:48 AM

Del....great job for an amature. Nothing like a good beefy pillow block mounting. :bow: Mike

#17 StarWrangler

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Posted 09 November 2012 - 10:49 AM

Simply Beautiful.

Gatta love Pillow Block Bearings.

Do you have any plans drawing s or specs so others
might be able to buil something simular.

Alan O.

#18 StarWrangler

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Posted 09 November 2012 - 11:12 AM

I was lucky to be able to go to Stellafane
3 times.

Stellafane is one place that you can stand in
one spot and turn 360 degs and see a Scope/Mount
in every direction you look at.

Alan O.

#19 LateViewer

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Posted 09 November 2012 - 11:48 AM

Very impressed.

#20 jwheel

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Posted 09 November 2012 - 02:22 PM

Nice mount!

#21 chuck52

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Posted 09 November 2012 - 08:49 PM

Very nice mount for sure.What diameter are the shafts? Great work on the optical tube too! As others have said,very inspiring!

#22 Traveler

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Posted 11 November 2012 - 05:47 AM

What a nice mount!

#23 Mirzam

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Posted 11 November 2012 - 08:07 AM

Very nice job on the mount! How did you connect the RA axis to the wooden declination mounting plate?

JimC

#24 starfall00

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Posted 11 November 2012 - 10:01 PM

Simply Beautiful.

Gatta love Pillow Block Bearings.

Do you have any plans drawing s or specs so others
might be able to buil something simular.

Alan O.

Hi starquester,

I have some drafts, but nothing technical. I thought to do some to share, but I need time. If I get that, I will publish here.

Regards,
Delberson.

#25 starfall00

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Posted 11 November 2012 - 10:04 PM

I was lucky to be able to go to Stellafane 3 times.

Hi starquester,

It's a dream for me to go there someday.

Regards,
Delberson.






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