I was out late last night (this morning) with my 17.5 pdhq mostly captivated by Mars. It was a better experience than all the nights combined from the last...
Great to read your report Chris. At the moment we are fighting some nasty weather here so I haven't seen Mars for a while. Opposition is just around the corner...
Hi, I'm a 15' Truss owner, and I'm seeking help in balancing issues. The upper cage of this very top heavy 15" Truss would even dip all the way down when...
Yi-cheng, Balancing a dob is a variable process. You can balance the dob for one eyepiece, but if another eyepiece or binoviewer is added, it will be out of ...
... all ... The first thing to do is to remove the extra weight added to the ... Just curious Don, is it normal for the truss scopes to be so upper cage heavy...
Chris, I don't know what normal is. But my 12.5" truss was perfectly balanced with the extra weight on the spider centerbolt and a 10mm Plossl in the focuser...
Yi-cheng Liu, when I recently had a problem balancing my scope I asked how to use a chain to achieve balance and I got wonderful advice from this site. My...
Hi, Thanks for all fellow members who responded with great suggestions ! I haven't tried adding friction yet, and it doesn't sound like a good idea after...
Hi, Believe it or not but the chain doesn't really rattle. I hardly ever am even aware of it. I always place a mat under my scope so that helps. Also the chain...
... Yi-Cheng While the slide weight/rail system is something I have considered and still think about I just use a series of wrist weights with velcro right now...
After another conversation with Bill in which he recommended that I try moving the altitude bearings first before resorting to the more drastic solution of...
Maureen, I'm coming in a little late, but I gather that you need a bit more vertical movement so that the tube will point true 90° in reference to the...
I was at Home Depot today and bought a Ridgid Brand 2 1/2" shop vac hose to hose connector for $3.96. It fits my Orion 8x50 finderscope perfectly and makes a...
Thanks Don. Haven't had time today to check out your suggestion but will get to it tomorrow. In the meantime I want to ask if anybody on this site is using a...
Maureen, The ScopeBuggy looks nice with the large wheels and the handle for steering. It will elevate the scope by the amount the rails are above the ground. ...
Don, I have wheelbarrow handles now and I find them a bit of a pain because you have to put them on and take them off everytime you want to move the scope....
Maureen, I have a 17.5" TD and I modified the wheelbarrow handles so that I pull a pin rather than unscrew the handles. I can have both handles off in 20...
My 12.5" PDHQ has on-board retractable wheelbarrow handles. They are flush with the rear of the rocker box, stored in a vertical position, and secured by...
Don and Hal, Both of your suggestions sound great. As soon as I resolve this altitude problem, I will be asking you both for more details. Hal, I'm not sure...
Maureen, You say you removed the felt pad at the BACK of the rocker box. Don't you mean front? It could be you have been moving the altitude bearing in the...
Don, It was the round felt pad at the high end of the rocker box. It kept the mirror box from moving further back. When I removed it the situation improved....
Maureen, The high end is referred to as the front of the rocker box. Take a look at the Discovery website for the 12.5" TD. Notice that the higher side is to...
For those who wish to see ANTARES, my modified 12.5" PDHQ with the "On Board" wheelbarrow handles, it's the last picture in the Gallery. For a more detailed...
Don, My scope is set up exactly like the picture. I've just been calling the front of the box the back of the box. Thanks for clarifying this. Also you said...
... The thread is now so long that I can't find the details of the test Rick McWilliams told you to run. Could you re-explain what he told you, or refer me to...
Hi All, I was not having great success with my DSC's (Sky Commander w/4000 tic encoders), with the first couple of objects falling within a 1.0 degree fov but...
I used a crude method but it worked. I attached two small 2.5 lbs weights to the metal frame work holding the mirror. I got the weights at Academy in the...
I did the same with three Walmart 5lb. dumbbell weights on my 17.5TD. But that was when I was using a Lumicon 80mm Superfinder on the secondary cage. I have...
Gene, The most detailed post is #12352. This test is desighed to find true vertical. Ed Moran's point is also valid. Rick did say that most of our scopes would...
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