Replacement CGEM delayed (again) I'm turning blue!
Posted 13 April 2009 - 06:24 PM
PM me when you get a chance. I want to discuss what I'm planning and get your take on it. Thanks, buddy,
Posted 14 April 2009 - 03:20 PM
Posted 14 April 2009 - 07:32 PM
I think some folks have AP-900 expectations for what is in truth a cheap imported GEM. So far, the quality seems to be exactly what folks who have owned similar mounts such as the Orion Atlas have experienced. Not perfect but good enough for the price. That's why the Atlas is a perrenial best seller and the CGEM seems to be sold out frequently.
I have both and Atlas and a Losmandy GM-8. The Atlas has a much larger capacity than does the GM-8. I'd rate the GM-8 as a CG5 class mount in fact. It struggles with my 127ED whereas the Atlas handles it without a whimper. The Losmandy has nice machining work for its price, but nothing close to the A-P mounts.
IMO really good mounts generally cost more than $6k. Since I don't image, I am willing to put up with good enough and forego really good.
Posted 14 April 2009 - 07:48 PM
Posted 14 April 2009 - 08:28 PM
I agree that friction is your friend and in the case of a saddle and dovetail bar the amount of friction is dependent on the fit between the two components. A poor fit between them puts less surface area in contact and therefore reduces the potential amount of friction (and therefore the holding force) between the two pieces. I don't think anyone is overly concerned about cosmetic damage to a dovetail bar or what the CGEM saddle looks like. Most of the conversation has been about the concerns over the fit of Losmandy D type plates in the CGEM's stock saddle or what Celestron calls a "mounting platform".
Interestingly Celestron makes no mention of D sized plate compatibility, in fact there doesn't seem to be any information on the saddle itself (including any statement about it even being CGE dovetail compatible) in the marketing info, product specifications, or the installation manual. Astronomics does however make a specific statement about the mount head accepting either type of dovetail. The CGE saddle on the other hand is a nicely machined unit that grips either type of dovetail very well.
The CGEM saddle doesn't seem to fit Losmandy D plates quite as well as the CGE saddle does. The angles of the sides of the saddle also seem to be a bit different and the corners of the CGEM saddle don't fit into the 3rd party D sized dovetail bar/plates quite as deeply as they do on the CGE or 3rd party D saddles. The assumption is that this is all due to the fact that the CGEM saddle is a casting that isn't created to the same tolerances as if it had been machined.
Is this really a problem? I'm not sure but I do know that if I owned a CGEM I would be concerned about the fit of a Losmandy D compatible plate in the stock saddle. The visuals would make me a bit uncomfortable and I would be extra careful every time I mounted a scope on the mount.
Posted 15 April 2009 - 12:18 AM
Posted 15 April 2009 - 01:01 AM
Now, that's 6 days for a response...5 days for my check to get from CT to CA...5 days for the replacement part to be shipped back to me in CT....
16 DAYS for a simple replacement part (that they have in stock) that would take literally 2 minutes to order and another 2 for a human being to package and put a shipping label on it. That's ridculous.
Needless to say I'm not doing it.
I needed a plastic tripod spreader for the CGE. Celestron wants $55 shipped for it. I went to Lowe's (That's Lane) and got a round 18" table top and I'm making a tripod eyepiece tray/extender. Total cost $9.99.
Posted 17 April 2009 - 08:58 PM
I ordered my CGEM today. I am sure I won't see it for a long time, but the shop lent me a CG5 in the meantime, very decent of them!!!
Can anyone point me in the direction of a "first look" article on the CGEM?
Posted 18 April 2009 - 11:06 AM
Posted 18 April 2009 - 02:44 PM
Posted 19 April 2009 - 10:36 AM
Posted 02 May 2009 - 09:39 AM
I really liked the astronomics.com experience and the 5% cloudynights.com discount doesnâ€™t hurt either. I saved $98.00. My first light experience was the Beehive and the second was Saturn... moons and all recorded in my observation log. Clouds rolled in and now alas I'm on the road again. While away, I am in the process of ordering cases for my "stuff" and thanks to Lord Beowulfâ€™s measurements Iâ€™m leaning towards a pair of Pelican 1630 cases. One case for the OTA and the other case for the CGEM head delivered for $200.20 each. Now for my question before I pull the trigger please. Will they work? Thank you all.
Posted 02 May 2009 - 08:43 PM