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  1. Bingo! That's exactly what happened. I collimated on a star, and when I went to a new star, the scope did a meridian flip. The new star test was noticeably off. I wasn't planning on having to mess with collimation right away, but it appeared to be slightly off upon arrival. I had it dialed in really nice, but as soon as it flipped, it looked bad. Really disappointed. I'll wait and see what the vendor says. Skywatcher replied to me the other day asking if I locked the mirror down with the small screws after collimating, which I did.
  2. Thanks. I did reach out to the vendor. Waiting for a reply.
  3. Thanks. It's only a few months old, so I'm going to reach out to the company. It's super frustrating. I thought I had it looking really good, and then when the scope moved to another angle.....crap.
  4. I recently tweaked the collimation on my Skywatcher mak, and had it looking really good. I think I was using Aldeberan for the adjustments. Anyway, I moved the scope to a star in another part of the sky, and to my dismay, the collimation was off! All the screws were tightened, so it wasn't that. I went back to the original star, and it looked spot on. I'm guessing maybe the mirror is moving slightly as the scope changes orientation. Whatever the cause, the scope is basically impossible to collimate at this point. I'm going to reach out to Skywatcher to see what they say, as it should still be under warranty. Anyone ever run into this problem? What a disappointment...
  5. Thanks, I will keep playing with it. I think I'm almost there, but the weather sucks here in the northeast. I got some clear skies the other night, but front meniscus dewed over and froze, so that was the end of that, haha.
  6. Thanks, I think that makes sense. So, the large screws are push/pull? The posts I saw on other forums said the push/pull action was happening between the large and small screws. For example, if you loosen one small screw, you'd need to tight the large one right next to it. That doesn't seem to be the way it works, so that's what confused me. It seems like only the large screws are push/pull, just like the 3 screws on a typical SCT. I read that the small screws could have a very minor effect, so might need to be tweaked just a hair at the end, but they're not doing the main work.
  7. Wow, thanks OP, for such a detailed post. I wanted to ask about collimation. I see a lot of people saying the large and small screws work in push/pull pairs, but that doesn't seem to be correct. If I'm understanding things correctly, the way to properly collimate these maks is to first loosen all the small screws (just a bit). Then, use the 3 larger screws like we'd do with an SCT. Here's the part I'm not clear on: when I loosen one large screw, do I need to tighten the large screw across from it, or do they function independently? Finally, once collimation looks good, snug up the small screws. The procedure above is what SkyWatcher gives in their official collimation document, so I'm confused as to why people say to do it differently. Those posts have said to tighten/loosen a large screw, and then the small screw next to it will be looser or tighter.
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