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GEM45: couple of follow-up questions

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#1 DRK73

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Posted 03 March 2021 - 01:34 AM

Got it out for the first time under the stars this evening, usual first-time snafus. BUT: 

 

According the instruction manual, a 5.5mm x 2.1mm center positive power cable should fit. I want to power this mount off of a deep cycle battery, so ordered the appropriate size cable - and it doesn't fit. This is what I ordered; did I make a mistake?  

 

Also, kind of surprised that for a mount boasting a capacity of 45 pounds, it comes with a single modest counterweight. To heft my little 72mm refractor and camera stuff, I've got the one counterweight almost at the bottom of the counterweight shaft. I'm pretty confident that I don't have a chance at getting my AT115EDT to balance. Is it better to get an additional counterweight or shop around for a shaft extension? 

 

Thanks!



#2 Ken Sturrock

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Posted 03 March 2021 - 01:55 AM

I used a second counterweight even on my 80mm. As you can figure, they both rode about half-way up the shaft. I think you'll prefer the extra counterweight rather than a shaft extension.


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#3 MrRoberts

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Posted 03 March 2021 - 09:48 AM

For my  Esprit 120 I bought and use an extra 10 and 5.

Certainly you will need the 10 for your 115.

As for your cable I not sure. I bought the Ioptron 12v dc tip adaptor to plug into my remote battery.

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#4 honyi

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Posted 03 March 2021 - 07:42 PM

Got it out for the first time under the stars this evening, usual first-time snafus. BUT: 

 

According the instruction manual, a 5.5mm x 2.1mm center positive power cable should fit. I want to power this mount off of a deep cycle battery, so ordered the appropriate size cable - and it doesn't fit. This is what I ordered; did I make a mistake?  

 

Also, kind of surprised that for a mount boasting a capacity of 45 pounds, it comes with a single modest counterweight. To heft my little 72mm refractor and camera stuff, I've got the one counterweight almost at the bottom of the counterweight shaft. I'm pretty confident that I don't have a chance at getting my AT115EDT to balance. Is it better to get an additional counterweight or shop around for a shaft extension? 

 

Thanks!

From what i see at paragraph 2.3 at page 7 of your mount manual, the socket that supplies power into your mount is 5.5mm x 2.5mm, centre positive.

 

This is different from the CEM40, which uses a 5.5x2.1


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