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FREE Printable Setting Circles

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39 replies to this topic

#26 halx

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Posted 20 March 2019 - 10:56 AM

Thank you for these. I have a 12" Z12. I opted to mount the circle on the top plate since I didn't want to cut into my base at all. I saw others do it. I'm a newbie. So I didn't realize if mounted on top, the numbers need to be reversed. So, since I liked the design of these circles, I reversed the numbers for anyone else who is interested. I hope that by posting this, I'm not being un-cool in any way. The only one I did was for the 12" dob

That's a common confusion. Thus in DSO Planner Android app we have a special option to work with the reversed circles. Zero issues about that as the app is calibrating the Azimuth by the single star alignment and shows your "special azimuth" instead of the real one for convenience (thus no lead adjustment ever needed either).


Edited by halx, 20 March 2019 - 10:59 AM.

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#27 Jr49

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Posted 13 August 2020 - 10:32 PM

Thank you for these. I have a 12" Z12. I opted to mount the circle on the top plate since I didn't want to cut into my base at all. I saw others do it. I'm a newbie. So I didn't realize if mounted on top, the numbers need to be reversed. So, since I liked the design of these circles, I reversed the numbers for anyone else who is interested. I hope that by posting this, I'm not being un-cool in any way. The only one I did was for the 12" dob

older topic but question for you. when you say you mounted it on the "top plate" does that mean you mounted it on your base directly and when you move the scope the setting circles move with it? I think that's what you meant but just wanted to confirm.



#28 Traffalger1698

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Posted 14 August 2020 - 08:12 AM

older topic but question for you. when you say you mounted it on the "top plate" does that mean you mounted it on your base directly and when you move the scope the setting circles move with it? I think that's what you meant but just wanted to confirm.

Yes I believe that Is what he was saying.   I did that on my scope as well.  As the commenter indicated if you do it this way the numbers need to be reversed for things to work correctly with many of the astronomy software out there. 

 

I used this site for my circles and it worked very well.  https://www.blocklay...dividereng.aspx

 

If you have more questions don't hesitate to ask. 



#29 aeajr

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Posted 15 November 2020 - 11:48 AM

Thanks for the templates.

 

I took the 12" circle, put it on a USB drive and took it to UPS.  They printed and laminated it for me.  Glued it to the bottom plate of my Apertura AD12.  Works great!

 

Use a digital angle gauge for the Alt.

 

Using an angle gauge to help find targets – AltAz coordinates
https://www.cloudyni...y/#entry8120838

 

 

Attached Thumbnails

  • Apertura AZ scale mounted on plate with 3M77 contact glue (320x240).jpg
  • Apertura AZ scale close (320x240).jpg
  • Angle Gauges on XT8 OTA (240x202).jpg

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#30 Speedy1985

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Posted 02 January 2021 - 02:48 PM

Thanks for the templates.

 

I took the 12" circle, put it on a USB drive and took it to UPS.  They printed and laminated it for me.  Glued it to the bottom plate of my Apertura AD12.  Works great!

 

Use a digital angle gauge for the Alt.

 

Using an angle gauge to help find targets – AltAz coordinates
https://www.cloudyni...y/#entry8120838

Ed, I just ordered an AD12 myself, so I'm doing a lot of reading on extras and mods and came across this. I have a couple of questions regarding the setting circle.

 

1. Was the PDF file you saved scaled correctly or did it have to be modified?

2. Did they cut it for you too, or did you do it yourself?

 

Don



#31 aeajr

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Posted 02 January 2021 - 02:55 PM

Ed, I just ordered an AD12 myself, so I'm doing a lot of reading on extras and mods and came across this. I have a couple of questions regarding the setting circle.

 

1. Was the PDF file you saved scaled correctly or did it have to be modified?

2. Did they cut it for you too, or did you do it yourself?

 

Don

I gave them the file and told them to scale it to a 25" diameter with black letters on a white background.

 

I asked them to laminate it on both sides and cut it out for me.   They did a perfect job.

 

I would imagine Staples or Sir Speedy or one of the other printers could do it too. 


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#32 Speedy1985

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Posted 02 January 2021 - 02:57 PM

I gave them the file and told them to scale it to a 25" diameter with black letters on a white background.

 

I asked them to laminate it on both sides and cut it out for me.   They did a perfect job.

 

I would imagine Staples or Sir Speedy or one of the other printers could do it too. 

Awesome. Do you remember what they charged you? I was just poking around on staples too. 



#33 aeajr

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Posted 02 January 2021 - 05:58 PM

My cost was high because I paid for 1 hour service. I had two made just in case I messed up one of them. About $40 each.i would you could get them made lower than that.
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#34 Speedy1985

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Posted 02 January 2021 - 06:11 PM

My cost was high because I paid for 1 hour service. I had two made just in case I messed up one of them. About $40 each.i would you could get them made lower than that.

Ok great, thank you for the help!



#35 Speedy1985

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Posted 08 January 2021 - 09:41 PM

I just wanted to say that I took the PDF to Staples today and the scaling, at least for the 12" base, is spot on. I had it printed and laminated exactly as Ed did above. Now I just need the scope to attach it to!



#36 FoxIslandHiker

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Posted 12 January 2021 - 03:58 PM

I am the new owner of an Apertura AD10.  I bought a magnetic digital angle (altitude) scale and I would like to install an azimuth setting circle.  A rotatable circle as Sean Wood describes in post 19 seems like the best approach.  I did study the pdf that Leeseafish provided in post 22.  Leeseafish has a different turntable set up than mine so not completely applicable to my situation. 

 

I have 2 questions:

 

1. Has anyone done this with a GSO dob?  How did it go?  Sean suggests printing the setting circle on a thin ring and using pan head screws to hold the inner edge of the ring in place.  I am wondering if the screw heads might dig into the particle board of the top round carriage as it rotates.
2. After set into the correct alignment, how do you keep the rotatable setting circle from moving as you move the scope to see different objects?


Edited by FoxIslandHiker, 12 January 2021 - 04:24 PM.


#37 Crankyanken

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Posted 12 January 2021 - 05:32 PM

I was very much need to do this to my Z8, but on the top plate.  Does anyone have a link for a flipped version?



#38 aeajr

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Posted 12 January 2021 - 10:26 PM

I was very much need to do this to my Z8, but on the top plate. Does anyone have a link for a flipped version?


Natdiamond reversed it for the 12". He posted the file. See his post from March 2019. Ask how he did it.

Or take his file to Staples and tell them what diamater you want. They can scale it.
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#39 Crankyanken

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Posted 13 January 2021 - 09:48 AM

Natdiamond reversed it for the 12". He posted the file. See his post from March 2019. Ask how he did it.

Or take his file to Staples and tell them what diamater you want. They can scale it.

Thank you!  You always have great advice for us noobs here!



#40 Crankyanken

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Posted 14 January 2021 - 11:00 AM

Before I go off to Staples.... How accurate is the 100% measurement on the pdf file from post number one?  When I take a measurement at 50% (a center mark would make it easier to measure at full scale...) it only reads 9 inches to center for the 8" Dob base when it needs to be 9 9/16 to the center hole.  I found a Printable Protractor site, made up a template for 19 1/8" and when I have it at 100%, it shows I am still a half an inch off from center.  I made another at 20 inches, and it is much closer to the actual measurement to the center mark.  So which way do I go? 

 

EDIT - got it figured out...lol - I think I will stick to working on bikes!  Thanks!


Edited by Crankyanken, 14 January 2021 - 12:04 PM.



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