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Pathetic CG-5 latitude adjustment bolts

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#1 FlyBD5

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Posted 23 June 2013 - 07:36 PM

I cannot believe that after almost a decade, Celestron's quality control is so pathetic that CG-5 mounts still have the totally useless grade 5 latitude adjustment bolts.

#2 RTLR 12

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Posted 23 June 2013 - 07:56 PM

I spent $5 and replaced them with something better. Now I don't have to complain about them any more.

Stan

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#3 FlyBD5

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Posted 23 June 2013 - 08:02 PM

I spent $5 and replaced them with something better. Now I don't have to complain about them any more.

Stan


Where'd you get those? I'm definitely heading to Home Depot tomorrow for some grade 8 hardware.

#4 FlyBD5

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Posted 23 June 2013 - 08:03 PM

And now I have to figure out how to take apart the knuckle joint to remove the piece of the old bolt that broke off. :bangbangbang:

#5 RTLR 12

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Posted 23 June 2013 - 08:04 PM

Granger's Hardware...

https://new.grainger...Grip-Knob-3DGA7

#6 RTLR 12

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Posted 23 June 2013 - 08:54 PM

Sorry, I read this wrong. I posted longitude replacements. Here are the latitude replacements. I used these with a SS stud and jam nut.

https://new.grainger...ob-WP57603/_...

Stan

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#7 FlyBD5

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Posted 23 June 2013 - 09:11 PM

None of the links work, it would be better to just post the part numbers.

#8 cn register 5

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Posted 24 June 2013 - 03:09 AM

They have been upgraded look at the AVX mount.

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#9 RTLR 12

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Posted 24 June 2013 - 04:51 AM

Don't know why that happens. I can see them perfectly.

The Granger's part # for the alt knob is Kipp 3DFT3 and the az knobs is 3DGA7.

Stan

#10 RTLR 12

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Posted 24 June 2013 - 04:57 AM

FlyDB5,

I have never had any trouble with the bolts breaking. I replaced them for ergonomic reasons. Why do you think you are breaking bolts?

Stan

#11 rmollise

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Posted 24 June 2013 - 08:20 AM

I cannot believe that after almost a decade, Celestron's quality control is so pathetic that CG-5 mounts still have the totally useless grade 5 latitude adjustment bolts.


Welll...that would be true if they were useless, but they are not. I haven't had any problems with them over almost 10 years of use. They are small, and it would be nice if the knobs were bigger as on the VX, but they work and work well. Can you describe the problem you are having with them? :confused:

#12 spencerj  Happy Birthday!

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Posted 24 June 2013 - 09:05 AM

Yeah the latitude knobs are small and the longitude flippers feel a little flimsy, but I have never had a problem with them in the 6 years I have had my CG-5. They have always functioned fine and I always make polar alignment adjustments with the telescope and weights already mounted.

#13 FlyBD5

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Posted 24 June 2013 - 03:48 PM

FlyDB5,

I have never had any trouble with the bolts breaking. I replaced them for ergonomic reasons. Why do you think you are breaking bolts?

Stan


It's well known fact that the knobs are substandard, grade 5 bolts that bend inside the mount if the mount is raised to full latitude range. When trying to get one out it split.

#14 rmollise

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Posted 24 June 2013 - 05:22 PM


It's well known fact that the knobs are substandard, grade 5 bolts that bend inside the mount if the mount is raised to full latitude range. When trying to get one out it split.


Sorry you had a problem, but it is definitely not "well known." In fact, you are the first person I've head who's had this happen to them. Yes, bent bolts are fairly common on the Atlas...but not on the CG5...

#15 FlyBD5

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Posted 24 June 2013 - 06:40 PM



It's well known fact that the knobs are substandard, grade 5 bolts that bend inside the mount if the mount is raised to full latitude range. When trying to get one out it split.


Sorry you had a problem, but it is definitely not "well known." In fact, you are the first person I've head who's had this happen to them. Yes, bent bolts are fairly common on the Atlas...but not on the CG5...


No, Rod, that just means you haven't heard of it. The issue is so well known that you can buy upgrade kits on eBay to specifically deal with this issue of substandard bolts.

http://www.ebay.com/...de-Set-Meade...

#16 FlyBD5

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Posted 24 June 2013 - 07:23 PM

...and here's yet another example.

#17 rmollise

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Posted 24 June 2013 - 09:42 PM

No, Rod, that just means you haven't heard of it. The issue is so well known that you can buy upgrade kits on eBay to specifically deal with this issue of substandard bolts.


If that's your belief, that's fine. My experience is different. ;)

#18 Starhawk

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Posted 25 June 2013 - 09:33 AM

Flybede,

The scope stuff ad is just for flower handled bolts. Beware, stainless + aluminum = galvanic couple. It doesn't say anything about breaking the bolts. How did you do that, anyway?

For another thing, you might want to look up who Rod Molise is.

-Rich



It's well known fact that the knobs are substandard, grade 5 bolts that bend inside the mount if the mount is raised to full latitude range. When trying to get one out it split.


Sorry you had a problem, but it is definitely not "well known." In fact, you are the first person I've head who's had this happen to them. Yes, bent bolts are fairly common on the Atlas...but not on the CG5...


No, Rod, that just means you haven't heard of it. The issue is so well known that you can buy upgrade kits on eBay to specifically deal with this issue of substandard bolts.

http://www.ebay.com/...de-Set-Meade...



#19 EFT

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Posted 25 June 2013 - 09:35 AM


No, Rod, that just means you haven't heard of it. The issue is so well known that you can buy upgrade kits on eBay to specifically deal with this issue of substandard bolts.


If that's your belief, that's fine. My experience is different. ;)


My experience is the same as Rod's. I have seen plenty of CG-5 mounts and have very rarely seen one with even a bent adjustment bolt. They are cheap bolts, but the reason most people replace them is because the little handle things are a pain to use. They change them to get a handle that is easier to grip and make fine adjustments with. Just because someone is selling replacements of a completely different design, doesn't mean that people are purchasing the replacements because their originals bent or broke. The EQ-6 is the mount that had bent and broken bolt problems. I fixed plenty of them.

#20 FlyBD5

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Posted 25 June 2013 - 11:40 AM

Flybede,

The scope stuff ad is just for flower handled bolts. Beware, stainless + aluminum = galvanic couple. It doesn't say anything about breaking the bolts. How did you do that, anyway?

For another thing, you might want to look up who Rod Molise is.

-Rich



It's well known fact that the knobs are substandard, grade 5 bolts that bend inside the mount if the mount is raised to full latitude range. When trying to get one out it split.


Sorry you had a problem, but it is definitely not "well known." In fact, you are the first person I've head who's had this happen to them. Yes, bent bolts are fairly common on the Atlas...but not on the CG5...


No, Rod, that just means you haven't heard of it. The issue is so well known that you can buy upgrade kits on eBay to specifically deal with this issue of substandard bolts.

http://www.ebay.com/...de-Set-Meade...


If you look at the eBay it specifically mentions the substandard bolts that what they sell are meant to replace. A simple Google search uncovers discussion threads going back to 2005 that talk about the bolts bending inside the mount, as well as breaking when an attempt is made to remove them because they are soft grade 5 bolts. Given that I've been working with aviation-grade hardware for more than 35 years, I think I can tell the difference between good quality bolts that fit the purpose for which they are being used, and the soft, poorly plated ones that Celestron is using in the mount. The evidence is there for everyone to see -- the fact that someone hasn't seen the evidence has no relevance to the validity of the evidence, unless you are prepared to seriously suggest that there are people in this hobby who believe that if he/she hasn't seen it happen, it has never happened. I do believe not even Mr. Mollise believes that, as he has already stated in his reply. ;)

#21 frito

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Posted 25 June 2013 - 07:43 PM

i will only say this,i'm the third owner of my CG-5 AGT, when i got it i assume it had the original firmware V4.10, one of the oldest versions that exist. the manual i got also reflects this. from my rough research my mount is probably 5-6 years old if not older. my adjustment bolts are all fine, yes i've taken them out completely, they are not bent.

yes i want to replace them but only because they are a real pain to use, esp the north facing one at my lat of 37 N the electronics cover gets in the way of being able to use the flip thingy adjuster on it if i don't make sure to flip it before turning it too far one way.

#22 spencerj  Happy Birthday!

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Posted 26 June 2013 - 08:19 AM


No, Rod, that just means you haven't heard of it. The issue is so well known that you can buy upgrade kits on eBay to specifically deal with this issue of substandard bolts.


If that's your belief, that's fine. My experience is different. ;)


Who is this Uncle Rod fella? He talks like he has seen a CG-5 or two, but I doubt he knows pea-turkey about classic C8's. It's not like he wrote the book on them.

#23 Cliff Hipsher

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Posted 26 June 2013 - 08:40 AM

Speakin' of cheesy latitude bolts, has anyone considered using a worm gear arrangement to adjust latitude? In other words, replace the adjustment bolts with a worm shaft and cut threads on the latitude stub... And why wouldn't the same thing work for Azimuth?

#24 Starhawk

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Posted 26 June 2013 - 09:42 AM

It's a low use mechanism- and at most should be getting used once per session. Sure, you could jazz it up all the way to making it a motion platform with motors and encoders. And that would double the cost of the mount.

-Rich

#25 DaveJ

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Posted 26 June 2013 - 10:05 AM

Who is this Uncle Rod fella? He talks like he has seen a CG-5 or two, but I doubt he knows pea-turkey about classic C8's. It's not like he wrote the book on them.


Good one! :grin:






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