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#1
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I got tired of it, too, so I built a caster assembly that slides into
the GM-8's legs, and now I can roll my telescope out and be observing in 30 seconds. It was such a good idea, and it works so well, I made up a small prototype run, and I am hoping to sell them. See http://www.claytoncramer.com/GM8%20Casters.pdf for pictures and description. Jim's Mobile Industries sells wheeley bars to do the same thing--but this is $40, instead of $179, and they add less than two pounds to your mount. Clayton E. Cramer |
#2
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Hi,
I have a Vixen GP on wood legs, and the plastic/nylon leg tips "slip" on the garage floor, which causes flexure of the wood. I would think that your system induces the same problem on any smooth surface, and likely even on a rough (grass/dirt) surface. I've thought of your solution, but frankly, given the flexure problem, I didn't like the idea all that much in the end. A wheeled platform or "bars", aloows the legs to be sescured to the platform, much as they would be when set directly into the ground. Sorry for the negative outlook on your idea. Now, if you used locking wheels, or added a lower leg support to prevent flexure, that might be viable. -- Stephen Paul 42.5N 71.5W (GMT -05:00; All times expressed in local time, unless otherwise specified.) wrote in message oups.com... I got tired of it, too, so I built a caster assembly that slides into the GM-8's legs, and now I can roll my telescope out and be observing in 30 seconds. It was such a good idea, and it works so well, I made up a small prototype run, and I am hoping to sell them. See http://www.claytoncramer.com/GM8%20Casters.pdf for pictures and description. Jim's Mobile Industries sells wheeley bars to do the same thing--but this is $40, instead of $179, and they add less than two pounds to your mount. Clayton E. Cramer |
#3
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![]() "Stephen Paul" wrote Sorry for the negative outlook on your idea. Now, if you used locking wheels, or added a lower leg support to prevent flexure, that might be viable. Each wheel has a lock. |
#4
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"Howard Lester" wrote in message
... "Stephen Paul" wrote Sorry for the negative outlook on your idea. Now, if you used locking wheels, or added a lower leg support to prevent flexure, that might be viable. Each wheel has a lock. I really need to star wearing my glasses at the computer. blush |
#5
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![]() "Stephen Paul" wrote Each wheel has a lock. I really need to star wearing my glasses at the computer. blush ![]() |
#6
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"Howard Lester" wrote in message
... "Stephen Paul" wrote Each wheel has a lock. I really need to star wearing my glasses at the computer. blush ![]() S T A R T ;-) -- Stephen Paul 42.5N 71.5W |
#7
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As others have pointed out, the casters have brakes. In any case, I
haven't had any problem with leg flex. The GM-8 tripod legs are pretty sturdy. In practice, even on mild slopes (five to ten degrees), I haven't had any need for the brakes. I'm not even sure it would be wise to use them on more severe slopes, depending on your center of gravity for the mount and OTA. |
#8
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I tried a system somewhat like this with my (now former) Orion Atlas and
Meade 12" SCT. The only difference was that mine was like a platform with wheels and the Atlas legs fit into three areas on the platform. However, I was never able to work around a 9" drop I have from the house foundation to ground nor was I able to safely wheel it out to the yard location which involved traveling over soft ground for about 30'. On the first attempt going through the yard using a wide wheeled hand truck to pick up the platform, the whole thing spilled over, dented the Atlas and nearly wrecked the scope. So, I ended up selling the scope and mount and now happily use a C8 on CG-5. This is lighter by far than setting up the 12"/Atlas. Sorry, I know this is a bit OT from the original post, but just pointing out that sometimes we pay a big price for convenience and don't realize it until an accident has already happened. Good luck with your device. I'm sure with the smaller SCTs, it should work well and also as long as there aren't large dropoffs or excessive soft ground distances. JW wrote in message oups.com... I got tired of it, too, so I built a caster assembly that slides into the GM-8's legs, and now I can roll my telescope out and be observing in 30 seconds. It was such a good idea, and it works so well, I made up a small prototype run, and I am hoping to sell them. See http://www.claytoncramer.com/GM8%20Casters.pdf for pictures and description. Jim's Mobile Industries sells wheeley bars to do the same thing--but this is $40, instead of $179, and they add less than two pounds to your mount. Clayton E. Cramer |
#9
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![]() "Josh Washburn" wrote in message . net... I tried a system somewhat like this with my (now former) Orion Atlas and Meade 12" SCT. The only difference was that mine was like a platform with wheels and the Atlas legs fit into three areas on the platform. However, I was never able to work around a 9" drop I have from the house foundation to ground nor was I able to safely wheel it out to the yard location which involved traveling over soft ground for about 30'. On the first attempt going through the yard using a wide wheeled hand truck to pick up the platform, the whole thing spilled over, dented the Atlas and nearly wrecked the scope. So, I ended up selling the scope and mount and now happily use a C8 on CG-5. This is lighter by far than setting up the 12"/Atlas. Sorry, I know this is a bit OT from the original post, but just pointing out that sometimes we pay a big price for convenience and don't realize it until an accident has already happened. Good luck with your device. I'm sure with the smaller SCTs, it should work well and also as long as there aren't large dropoffs or excessive soft ground distances. Hey JW... Those are all valid points which I experienced as well with my rolling setup. It was good for the driveway, but not great for the terrain of the backyard. JMI offers larger wheels, but I'm convinced that this is still precarious for scopes on rougher terrain. (All of which the OP points out.) Too much vibration on the bumps, and wheels of any size can end up going too deep in the soft stuff. It sure is nice to have a wheeled setup under the right conditions though. No doubt about it. I had an Ultima 8 on wheels (about 65 lbs fully assembled), stored in a shed at the end of a paved driveway. It took just a few minutes to open the shed, roll the scope down the ramp onto the driveway, and get a rough polar alignment. I could be observing real fast, with no cooldown issues (especially a few hours after sunset). It went back in just as easily. I miss those days. Now I have a 4" F9 refractor on GP which can be hand carried fully assembled (very nice, and a great scope), and a big Dob (12.5" F4.8) with a handtruck. These are stored in the garage facing the front yard, and moved out to the backyard for use. Unfortunately, the garage isn't as "cold" as the shed because it is insulated and under the bedrooms, so the Dob takes longer to cool than I care to put into it at this point. In the warmer months it's no problem. But in these cold months, it's less trouble to just lift the GP with refractor, and walk it out to the backyard. The handtruck has pneumatic wheels and carries the dob without much problem, but it _can_ get to rocking side to side, if one isn't careful. I could certainly see a larger tripod mounted scope on a wood base getting away from you. Take care, Stephen Paul |
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