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Ideas for securing power connector to Atlas EQ-G mount

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#1 Jbslus2

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Posted 18 March 2019 - 01:17 PM

I have one of the older Orion Atlas EQ-G mounts.  Lately the scope has stopped slewing and shut down at random.  I believe (with the help of previous forum discussions) that I have narrowed it down to a loosening or twisting of the 12v barrel connector during slews.  This seems to be a fairly common scenario.  It's my understanding that the newer mounts have a screw down connector for this very purpose.

 

Right now I have electrical tape wrapped around the mount to secure the plug in place... total hack job.  Anyone have any ideas or success in a more elegant solution to hold that connector in place?

 

Thanks!



#2 Mike G.

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Posted 18 March 2019 - 01:22 PM

on the celestron cg5's, the panel mount connector has a split center pin.  often, I need to take a small pocket knife or very small screwdriver and insert it into the split to make the O.D. of the pin slightly bigger.  this works for a while to keep the connector from falling out during slews.  generally once a season.  not sure if the atlas mount is the same, but if it is, just open up the pin slightly.


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#3 SDTopensied

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Posted 18 March 2019 - 01:34 PM

I use a nylon cable clamp secured by one of the screws on the power panel to provide strain relief.

 

https://www.harborfr...-set-67541.html

 

Strain Relief Skywatcher NEQ6 Pro/Orion Atlas
 
-Steve

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#4 DuncanM

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Posted 18 March 2019 - 01:40 PM

I have one of the older Orion Atlas EQ-G mounts.  Lately the scope has stopped slewing and shut down at random.  I believe (with the help of previous forum discussions) that I have narrowed it down to a loosening or twisting of the 12v barrel connector during slews.  This seems to be a fairly common scenario.  It's my understanding that the newer mounts have a screw down connector for this very purpose.

 

Right now I have electrical tape wrapped around the mount to secure the plug in place... total hack job.  Anyone have any ideas or success in a more elegant solution to hold that connector in place?

 

Thanks!

I replaced my 12v power cord with one that has a right angle connector, as it seems to create less stress on the plug. 


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#5 SDTopensied

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Posted 18 March 2019 - 01:42 PM

A wider view for more context...I use Anderson Power Poles to make disconnecting easy for transport.  I also unplug from the mount during transport as well.

 

-Steve

Skywatcher NEQ6 Pro/Orion Atlas Strain Relief with Anderson Power Poles & Nylon Cable Clamp


#6 Jbslus2

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Posted 18 March 2019 - 03:51 PM

on the celestron cg5's, the panel mount connector has a split center pin.  often, I need to take a small pocket knife or very small screwdriver and insert it into the split to make the O.D. of the pin slightly bigger.  this works for a while to keep the connector from falling out during slews.  generally once a season.  not sure if the atlas mount is the same, but if it is, just open up the pin slightly.

Unfortunately the Atlas connector is just a standard metal barrel.  I appreciate the response, though, and will keep this in mind should I come across a similar situation. 



#7 Jbslus2

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Posted 18 March 2019 - 03:56 PM

A wider view for more context...I use Anderson Power Poles to make disconnecting easy for transport.  I also unplug from the mount during transport as well.

 

-Steve

Thank you very much for this... that's a great idea.  I bet I could find a few more uses for cable clamps considering the current state of my cord management is... less than optimal.  I am actually using a right angle plug right now but it seems to still be working its way out or otherwise losing contact.  Mine may require a combination of cable clamps and something to hold forward pressure at the connection.  At the very least this will let me get by with less tape!


Edited by Jbslus2, 18 March 2019 - 03:57 PM.


#8 Phil Sherman

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Posted 19 March 2019 - 12:02 AM

I purchased some decorator velcro (only one side is sticky), stuck a piece to the top of the mount and use a piece of the non-sticky to make an attach point for a loop of power cable. This relieves all strain on the plug.


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#9 2ndRecon

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Posted 30 April 2019 - 07:13 PM

Thank you very much for this... that's a great idea.  I bet I could find a few more uses for cable clamps considering the current state of my cord management is... less than optimal.  I am actually using a right angle plug right now but it seems to still be working its way out or otherwise losing contact.  Mine may require a combination of cable clamps and something to hold forward pressure at the connection.  At the very least this will let me get by with less tape!

These jacks are super simple to replace, if you even have a novice level of soldering experience. I would replace it with a threaded barrel, or twist lock connector.

 

It's cheap insurance. Or at the very least, use the opportunity to wire you up a backup Power source.

 

https://www.amazon.c...=gateway&sr=8-2


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#10 SDTopensied

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Posted 07 May 2019 - 10:39 AM

These jacks are super simple to replace, if you even have a novice level of soldering experience. I would replace it with a threaded barrel, or twist lock connector.

 

It's cheap insurance. Or at the very least, use the opportunity to wire you up a backup Power source.

 

https://www.amazon.c...=gateway&sr=8-2

 

I'd recommend against replacing with a threaded barrel.  I had a run-away slew and a cable-snag simultaneously with a CGEM DX a few years ago that resulted in the connector being pulled off of the motor control board.  The board was damaged and I wasn't able to resolder the connector...$389 for a new board at the time.  Granted the EQ6 has stepper motors that will break phase rather than power through like servo motors will, however the potential for equipment damage still exists.

 

To prevent equipment damage, go with enough strain relief that will keep the connector secure under normal slewing conditions and will still allow it to disconnect if you run into a problem.  The experience I mentioned above led me to what you see in the picture I posted earlier.

 

Hope this helps!

 

-Steve


Edited by SDTopensied, 07 May 2019 - 10:39 AM.


#11 macdonjh

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Posted 07 May 2019 - 01:23 PM

I had a similar problem with my Sirius mount.  I replaced the factory connector with a pig tail and RCA connector.  Never had a power loss again.  If you choose to change the connector BE CAREFUL.  There is no reverse polarity protection in these mounts and reconnecting the power "backwards" will fry something on your mount's main board.  I can post a photo of what I did when I get home from work...

 

[Edit] As promised, a photo of the modification I made to me (way out of warranty) Sirius mount:

Sirius power.JPG

 

I never had the power drop out after this modification.  I was very careful to keep polarity correct lest I burn up my mount.


Edited by macdonjh, 07 May 2019 - 05:26 PM.



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