Jump to content

  •  

CNers have asked about a donation box for Cloudy Nights over the years, so here you go. Donation is not required by any means, so please enjoy your stay.

Photo

My EZ-Tube (EZ-Crete) Pier

  • Please log in to reply
8 replies to this topic

#1 ryanr256

ryanr256

    Ranger 4

  • *****
  • topic starter
  • Posts: 331
  • Joined: 21 Apr 2009
  • Loc: Southwest Ohio

Posted 10 May 2020 - 04:40 PM

My weekend was spent installing my permanent pier. I saw this thread, https://www.cloudyni...-concrete-pier/ , a while ago and decided I would go this route for my pier. I will not be building an observatory, just a pier in the yard. Initially I was going to use the CG5-ASGT mount I've had for years but I decided that I needed a new mount. Unfortunately, that decision came after I had purchased one of Dan's pier plates for the CG5.    frown.gif

 

The mount I decided on is the Explore Scientific G11 PMC-Eight. I needed to adapt the G11 to the CG5 pier plate. That didn't take much effort because the Losmandy riser separates from the HD tripod. I messed up though. I drilled a too small hole in the riser to accommodate the pin on the pier plate. I tried to drill it out to the next larger size, but I don't have a drill press and the bigger bit walked while making the hole larger. I was able to use a file to clean up the mistake. It's not the prettiest hole, but it's functional.

 

The pier is solid. It came out an inch or two shorter than I calculated but that's because we dug the hole and inch or two deeper than calculated. wink.gif

 

Enough words, here's some pics:

 

20200509_173202.jpg

 

-Bob


Edited by ryanr256, 10 May 2020 - 04:45 PM.


#2 ryanr256

ryanr256

    Ranger 4

  • *****
  • topic starter
  • Posts: 331
  • Joined: 21 Apr 2009
  • Loc: Southwest Ohio

Posted 10 May 2020 - 04:41 PM

20200509_173153.jpg

 

-Bob



#3 ryanr256

ryanr256

    Ranger 4

  • *****
  • topic starter
  • Posts: 331
  • Joined: 21 Apr 2009
  • Loc: Southwest Ohio

Posted 10 May 2020 - 04:42 PM

20200510_140554.jpg

 

-Bob


  • Scott Mitchell, CCD-Freak, telesonic and 1 other like this

#4 ryanr256

ryanr256

    Ranger 4

  • *****
  • topic starter
  • Posts: 331
  • Joined: 21 Apr 2009
  • Loc: Southwest Ohio

Posted 10 May 2020 - 04:43 PM

Of course, a couple of hours after we finished, we had a hailstorm:

 

20200510_165306.jpg

 

-Bob


  • MalVeauX and daslolo like this

#5 ryanr256

ryanr256

    Ranger 4

  • *****
  • topic starter
  • Posts: 331
  • Joined: 21 Apr 2009
  • Loc: Southwest Ohio

Posted 10 May 2020 - 04:44 PM

20200510_165339.jpg

 

-Bob



#6 DSOGabe

DSOGabe

    Vostok 1

  • *****
  • Posts: 136
  • Joined: 02 Aug 2019
  • Loc: El Paso, TX

Posted 11 May 2020 - 05:39 PM

How did you secure the mount to the pier? The 3d picture appears to show the mounting bolts going into the  EZ-crete block or are my eyes acting up? Or is it secured with the anchor rod? I'm considering options that do not involve a dozen bags of concrete and a sono-tube. What can I say? I'm lazy!



#7 ryanr256

ryanr256

    Ranger 4

  • *****
  • topic starter
  • Posts: 331
  • Joined: 21 Apr 2009
  • Loc: Southwest Ohio

Posted 11 May 2020 - 07:49 PM

How did you secure the mount to the pier? The 3d picture appears to show the mounting bolts going into the  EZ-crete block or are my eyes acting up? Or is it secured with the anchor rod? I'm considering options that do not involve a dozen bags of concrete and a sono-tube. What can I say? I'm lazy!

 

I used an 8 inch Dan's pier plate. It is attached to the column with 3 bolts epoxied into the top of the column. I just marked the location and drilled the holes, filled them with concrete anchoring epoxy (Sika brand) and inserted the bolts into the holes.

 

The exposed part of the bolts are short because I am not using the CG5 center bolt to attach the mount. Well, I kinda am, but I am not removing it. So, the Losmandy riser is bolted to the plate. The G11 attaches to the riser, not the plate.

 

The only issue is that when the mount is removed, I essentially have a 5 inch cup collecting rain water.

 

Oh, the threaded rod for the pier does not attach to the plate at all.

 

[edit]

 

Here's a pic of the plate with one of the 3 attachment bolts.

 

pier_plate.jpg

 

[/edit]

 

-Bob


Edited by ryanr256, 12 May 2020 - 01:00 PM.

  • DSOGabe likes this

#8 Ranger Tim

Ranger Tim

    Surveyor 1

  • *****
  • Posts: 1,589
  • Joined: 25 Mar 2008
  • Loc: SW Idaho, USA

Posted 11 May 2020 - 09:46 PM

How do you like the mount? Let us know how repeatable your alignments are.



#9 ryanr256

ryanr256

    Ranger 4

  • *****
  • topic starter
  • Posts: 331
  • Joined: 21 Apr 2009
  • Loc: Southwest Ohio

Posted 12 May 2020 - 09:18 AM

How do you like the mount? Let us know how repeatable your alignments are.

 

I just received the mount. Haven't had a chance to use it yet. I'm coming from a CG5-ASGT so there's a bit of a learning curve.

 

My goal was to have a setup where I can just put the mount on the pier and spend minimal time aligning. I'm hoping the alignment is repeatable. ;)

 

I also wanted a stable platform for imaging with a William Optics GT71 refractor.

 

-Bob




CNers have asked about a donation box for Cloudy Nights over the years, so here you go. Donation is not required by any means, so please enjoy your stay.


Recent Topics






Cloudy Nights LLC
Cloudy Nights Sponsor: Astronomics