· Get a Cloudy Nights T-Shirt · Submit a Review / Article Click here if you are having trouble logging into the forums Privacy Policy | Please read our Terms of Service | Signup and Troubleshooting FAQ | Problems? PM a Red or a Green Gu… uh, User You are not logged in. [Login] Entrance · Main Index · Search · New user · Who's Online FAQ · Calendar Astrophotography and Sketching >> Beginning and Intermediate Imaging Previous   Index   Next   Threaded   Pages: 1 snowcrow sage Reged: 10/21/12 Loc: Vermont Any tip for better tracking w/ fork mount for AP?       #5613510 - 01/09/13 11:10 AM Edit   Reply   Quote Quick Reply   I bought a CPC 1100 months before finding this site, so I'm stuck with it for now. I'd like to make the best of a bad situation by increasing the accuracy of tracking. I did add a guidescope, counter weights, and trained the PEC. But I'm wonder if there is anything else I'm missing, just to tweak it a bit more. Thx. Post Extras:       Mike Wiles scholastic sledgehammer Reged: 02/04/09 Loc: Goodyear, AZ Re: Any tip for better tracking w/ fork mount for AP? [Re: snowcrow]       #5613816 - 01/09/13 02:21 PM Edit   Reply   Quote Quick Reply   Hi Bill, Have you quantified how accurate the tracking is? Do you know how much periodic error there was before training? Do you know what the Peak to Peak periodic error is now with correction enabled? Those are the things I'd want to know next. You've taken some steps to improve your setup...so I'd start by assessing where you're at and figuring out how much improvement you've made. Mike Post Extras:       Footbag Carpal Tunnel Reged: 04/13/09 Loc: Scranton, PA Re: Any tip for better tracking w/ fork mount for AP? [Re: Mike Wiles]       #5613880 - 01/09/13 03:00 PM Edit   Reply   Quote Quick Reply   I started with a CPC-800. Personally, I think fork mounts are better at imaging then they are given credit for. I'd be surprised if your PE wasn't better then most similarly priced GEM's. And there is no reason why you cannot get great images from the setup. My CPC-800 had a PE of 18 before PEC and 12 after. Post Extras:       Peter in Reno Post Laureate Reged: 07/15/08 Loc: Reno, NV Re: Any tip for better tracking w/ fork mount for AP? [Re: Footbag]       #5613953 - 01/09/13 03:46 PM Edit   Reply   Quote Quick Reply   CPC forks have unbalanced fork arms. The fork arm where the grip handle is pretty much empty inside. The other end of fork arm is loaded with gears, motor and other stuff. While CPC scope is mounted on the wedge and RA clutch is loose, does the scope wildly swing? If so, you may need to add some weights to the fork arm where the grip handle is. I think you might need about two pounds. I put 1.5 or 2 pounds ankle weight inside the fork arm in my old CPC0800. You will most likely need counterweight for declination axis since you added a guide scope. Peter Post Extras:       Pages: 1 Previous   Index   Next   Threaded   Extra information 1 registered and 14 anonymous users are browsing this forum. Moderator:  Undermidnight, fishonkevin  Print Thread Forum Permissions       You cannot start new topics       You cannot reply to topics       HTML is disabled       UBBCode is enabled Thread views: 177 Jump to *Announcements and News* -----   Cloudy Nights Announcements   Discussion of CN Articles, Reviews, and Reports   Celestial Events*General Astronomy* -----   Beginners Forum   General Observing and Astronomy   Outreach   Light Pollution*Equipment Discussions* -----   ATM, Optics and DIY Forum   Binoculars   Binoviewers   Cats & Casses   Classic Telescopes   Equipment   Eyepieces   Mounts   Observatories   Reflectors   Refractors    Video and Electronically Assisted Astronomy*Astrophotography and Sketching* -----   Beginning and Intermediate Imaging   Film Astrophotography   DSLR & Digital Camera Astro Imaging & Processing   CCD Imaging & Processing   Solar System Imaging & Processing   Sketching   Astro Imaging/Sketching Contest *Observing* -----   NEO   Planetary and Solar System Observing   Lunar Observing   Deep Sky Observing   Double Star Observing   Solar   Variable Star Observing and Radio Astronomy*Telescope Specific Forums* -----   Celestron NexStar    NexStar GPS / CPC Telescopes   Questar Forum   Meade ACF/RCX / LX / GPS    Meade ETX*Speciality Forums* -----   Arizona Science and Astronomy Expo   NEAF (Northeast Astronomy Forum) and NEAIC (Northeast Astro Imaging Conference)   AstroArt   Astronomy Clubs and Star Parties   Astronomy Software & Computers   AstroWebsites   Science! Astronomy & Space Exploration, and Others   Space Rocks   Stellar Media*Swap and Shop* -----   Shop and Swap Audio Components*CN Feedback and Vendor Announcements* -----   Vendor and Group Announcements*International Year of Astronomy 2009 - Forums are now closed.* -----   IYA Archive Info CN Forums Home

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