· 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 Equipment Discussions >> Mounts Previous   Index   Next   Threaded   Pages: 1 Mittag55 member Reged: 10/31/08 Loc: West Amboy, NY LXD75 Proper dual mount       #3064045 - 04/24/09 10:15 AM Edit   Reply   Quote Quick Reply   I have just ordered a new mount and plan for now using it for my 130 mm reflector and adding a 80 or 90 mm guide/imaging refractor on it...is there any proper physics or distribution of weights i should know about or can i just pair up the scope rings and balance the rig out.Any help or point to the right info would be helpfull. Post Extras:       Jerry3672 Vendor - Quantum Astronomy Products Reged: 01/20/08 Loc: Lexington NC Re: LXD75 Proper dual mount [Re: Mittag55]       #3064450 - 04/24/09 01:46 PM Edit   Reply   Quote Quick Reply   The best tip for that LXD75 is to have your mount a little (East) heavy. The gears always should climb a bit. If you are balanced perfectly, then the backlash will allow the mount to bounce back and forth and you will have long stars. I have my 90mm guide scope on top of my 10 inch SN reflector. I had to add a custom weight to the end of the shaft, but you won't have that issue with a 130mm scope. Edited by Jerry3672 (04/25/09 01:23 PM) Post Extras:       Mittag55 member Reged: 10/31/08 Loc: West Amboy, NY Re: LXD75 Proper dual mount [Re: Jerry3672]       #3064829 - 04/24/09 05:21 PM Edit   Reply   Quote Quick Reply   Thanks for the input...West heavy it will be. Post Extras:       EricJD Carpal Tunnel Reged: 07/24/07 Loc: Chesapeake VA Re: LXD75 Proper dual mount [Re: Mittag55]       #3064957 - 04/24/09 06:37 PM Edit   Reply   Quote Quick Reply   Eh mate, don't you mean East heavy so that as it rotates it's always pressing against the gears? I always balance east heavy and get nice round stars at 6 minutes on my LXD75. Post Extras:       jgraham Postmaster Reged: 12/02/04 Loc: Dayton, Ohio Re: LXD75 Proper dual mount [Re: EricJD]       #3065275 - 04/24/09 10:42 PM Attachment (28 downloads) Edit   Reply   Quote Quick Reply   The LXD75 should handle that easily. Mine carries an LXD75 SN6 with a 90mm MCT as a guide scope. I usually balance mine evenly on both axis, then shift a small counter weight to make it just a tad east-heavy so it climbs against the load. Also, while guiding I use either north-only or south-only on the dec. My standard imaging kit... Post Extras:       Jerry3672 Vendor - Quantum Astronomy Products Reged: 01/20/08 Loc: Lexington NC Re: LXD75 Proper dual mount [Re: jgraham]       #3066246 - 04/25/09 12:55 PM Edit   Reply   Quote Quick Reply   Opps- You are corerct- East heavy so the gears are climbing. Post Extras:       Jerry3672 Vendor - Quantum Astronomy Products Reged: 01/20/08 Loc: Lexington NC Re: LXD75 Proper dual mount [Re: Jerry3672]       #3066248 - 04/25/09 12:56 PM Edit   Reply   Quote Quick Reply   Take note of where John has his camera. I have seen his image before and use his Idea to keep the mass in the correct place. This is the best place for the camera Post Extras:       Mittag55 member Reged: 10/31/08 Loc: West Amboy, NY Re: LXD75 Proper dual mount [Re: Jerry3672]       #3066843 - 04/25/09 07:08 PM Edit   Reply   Quote Quick Reply   Thanks...this is why i read the posts...lots of neat tricks and tips to keep me out of trouble. Post Extras:       Mittag55 member Reged: 10/31/08 Loc: West Amboy, NY Re: LXD75 Proper dual mount [Re: Mittag55]       #3075547 - 04/29/09 05:48 PM Edit   Reply   Quote Quick Reply   Well i have a 105 mm Antares coming to go on my mount so all is well. i will try it balanced at first to see how smooth the mount is and ofset East if it needs sit...Thanks all for the help Post Extras:       Pages: 1 Previous   Index   Next   Threaded   Extra information 15 registered and 25 anonymous users are browsing this forum. 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