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starfall00
member


Reged: 12/23/10

German Equatorial Mount (Homemade)
      #5510233 - 11/08/12 04:43 PM Attachment (192 downloads)
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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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Jay Wise
sage


Reged: 11/21/08

Loc: Near Williamsburg VA
Re: German Equatorial Mount (Homemade) new [Re: starfall00]
      #5510243 - 11/08/12 04:53 PM
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Beautiful, fabulous, amazing! You need to take it to Stellafane (spelling?) Share some closeups and details on the drives.

JayW

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starfall00
member


Reged: 12/23/10

Re: German Equatorial Mount (Homemade) new [Re: starfall00]
      #5510247 - 11/08/12 04:56 PM Attachment (98 downloads)
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Another Picture.

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Mkofski
professor emeritus
*****

Reged: 07/19/11

Loc: Greenfield, Indiana, USA
Re: German Equatorial Mount (Homemade) new [Re: starfall00]
      #5510313 - 11/08/12 05:37 PM
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Beautiful! What kind of wood did you use?

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Jaimo!
Pooh-Bah
*****

Reged: 10/11/07

Loc: Exit 135 / 40° North
Re: German Equatorial Mount (Homemade) new [Re: starfall00]
      #5510476 - 11/08/12 08:13 PM
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VERY, VERY Nice!



Jaimo!

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Cotts
Just Wondering
*****

Reged: 10/10/05

Loc: Toronto, Ontario
Re: German Equatorial Mount (Homemade) new [Re: Jay Wise]
      #5510812 - 11/08/12 11:23 PM
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Judging from the polar axis altitude I would bet it is a looooong drive to Stellafane....

Remarkable mount nevertheless!!!

Dave

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starfall00
member


Reged: 12/23/10

Re: German Equatorial Mount (Homemade) new [Re: Jay Wise]
      #5511087 - 11/09/12 07:06 AM
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Quote:

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

JayW

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.

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starfall00
member


Reged: 12/23/10

Re: German Equatorial Mount (Homemade) new [Re: Mkofski]
      #5511098 - 11/09/12 07:15 AM
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Quote:

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.

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starfall00
member


Reged: 12/23/10

Re: German Equatorial Mount (Homemade) new [Re: Cotts]
      #5511118 - 11/09/12 07:32 AM
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Quote:

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.

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starfall00
member


Reged: 12/23/10

Re: German Equatorial Mount (Homemade) new [Re: Jaimo!]
      #5511119 - 11/09/12 07:33 AM
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Quote:

VERY, VERY Nice!



Jaimo!

Thanks Jaimo!

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starfall00
member


Reged: 12/23/10

Re: German Equatorial Mount (Homemade) new [Re: starfall00]
      #5511135 - 11/09/12 07:46 AM Attachment (73 downloads)
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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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starfall00
member


Reged: 12/23/10

Re: German Equatorial Mount (Homemade) new [Re: starfall00]
      #5511143 - 11/09/12 07:52 AM
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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.

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Dennis_S253
scholastic sledgehammer


Reged: 11/22/11

Loc: West Central Florida
Re: German Equatorial Mount (Homemade) new [Re: starfall00]
      #5511178 - 11/09/12 08:19 AM
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nice work, looks good

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mercedes_sl1970
professor emeritus
*****

Reged: 12/02/05

Loc: Canberra, Oz
Re: German Equatorial Mount (Homemade) new [Re: Dennis_S253]
      #5511274 - 11/09/12 09:24 AM
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That is an excellent piece of work and quite an inspiration. Congratulations.

Andrew

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zjc26138
Loved By All
*****

Reged: 02/24/05

Loc: Mingo Junction, Ohio
Re: German Equatorial Mount (Homemade) new [Re: mercedes_sl1970]
      #5511286 - 11/09/12 09:31 AM
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Beautiful mount. Great job!

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mikey cee
Postmaster
*****

Reged: 01/18/07

Loc: bellevue ne.
Re: German Equatorial Mount (Homemade) new [Re: zjc26138]
      #5511414 - 11/09/12 10:48 AM
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Del....great job for an amature. Nothing like a good beefy pillow block mounting. Mike

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StarWrangler
scholastic sledgehammer


Reged: 09/03/04

Loc: Three Rivers, MI U.S.A>
Re: German Equatorial Mount (Homemade) new [Re: starfall00]
      #5511418 - 11/09/12 10:49 AM
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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.

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StarWrangler
scholastic sledgehammer


Reged: 09/03/04

Loc: Three Rivers, MI U.S.A>
Re: German Equatorial Mount (Homemade) new [Re: starfall00]
      #5511443 - 11/09/12 11:12 AM
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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.

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LateViewer
Pooh-Bah
*****

Reged: 11/17/05

Loc: Manhattan
Re: German Equatorial Mount (Homemade) new [Re: StarWrangler]
      #5511487 - 11/09/12 11:48 AM
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Very impressed.

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jwheel
professor emeritus


Reged: 01/23/08

Loc: Fort Davis TX
Re: German Equatorial Mount (Homemade) new [Re: LateViewer]
      #5511752 - 11/09/12 02:22 PM
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Nice mount!

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