jrcrilly
Refractor wienie again
Reged: 04/30/03
Posts: 22364
Loc: NE Ohio
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Quote:
The counter weight that comes with the drive is ridiculously heavy for the 80ED setup. Does anyone know where I can find some lighter counter weight for the drive?
Orion sells a 7.5 pound weight.
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John C
Urban Observatory
Tele Vue Pronto
A&M/Astreya 76mm F/6 APO
TMB/LOMO 80mm F/7.5 APO
Tak FSQ-106N F/5 APO
Meade 152ED F/9 "APO"
152mm F/10 achromat
Tak CN-212 8" F/12 classical Cass/ F/4 Newt
Teeter 20" F/3.8 truss Newt w/ServoCat
LXD750, EM-200, CI-700
ST-10XME
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GUNER
Pooh-Bah
Reged: 07/19/04
Posts: 1301
Loc: Bedminster,NJ USA
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Hi All,
How much weight can this mount handle? It couldn't take my 10" LX-50 OTA could it?
If not do you think the LXD75 could?
Thanks,
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Thomas
12" SuperCharged LX-200 GPS!!!
TAK SKY 90 on a Vixen Skypod
Stacked GOLD!PST/EXT-70AT/DSX-125
Infinity 2-1 CCD Camera with Lucam Recorder
Custom Scientific 1.25" LRGB filters
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jrcrilly
Refractor wienie again
Reged: 04/30/03
Posts: 22364
Loc: NE Ohio
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Quote:
Hi All,
How much weight can this mount handle? It couldn't take my 10" LX-50 OTA could it?
If not do you think the LXD75 could?
Thanks,
I've done it with LXD55 on a beefier tripod and it worked well enough for visual use. Settle down was advanced to maybe 5 seconds or so.
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John C
Urban Observatory
Tele Vue Pronto
A&M/Astreya 76mm F/6 APO
TMB/LOMO 80mm F/7.5 APO
Tak FSQ-106N F/5 APO
Meade 152ED F/9 "APO"
152mm F/10 achromat
Tak CN-212 8" F/12 classical Cass/ F/4 Newt
Teeter 20" F/3.8 truss Newt w/ServoCat
LXD750, EM-200, CI-700
ST-10XME
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GUNER
Pooh-Bah
Reged: 07/19/04
Posts: 1301
Loc: Bedminster,NJ USA
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John,
So you think the LXD75 should/will do better then that. I was hoping to use it for photography as well as visual.
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Thomas
12" SuperCharged LX-200 GPS!!!
TAK SKY 90 on a Vixen Skypod
Stacked GOLD!PST/EXT-70AT/DSX-125
Infinity 2-1 CCD Camera with Lucam Recorder
Custom Scientific 1.25" LRGB filters
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Greg K.
Reged: 12/11/03
Posts: 9939
Loc: Clifton Park, NY
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The LXD75 may do a bit better, but I wouldn't count on it being a quantum leap better, especially over a tuned LXD55.
It's still basically the same mount with a couple improvements.
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NexStar 11 GPS
Orion SkyView Pro 8EQ w/ Autostar
15x70 Celestron SkyMasters
Orion 90mm Mak
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GUNER
Pooh-Bah
Reged: 07/19/04
Posts: 1301
Loc: Bedminster,NJ USA
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Hi All,
Greg/John thanks for the info. To get a little off topic what mount would you guys recommend for a 10" Meade OTA for visual & photgraphic use? With GOTO.
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Thomas
12" SuperCharged LX-200 GPS!!!
TAK SKY 90 on a Vixen Skypod
Stacked GOLD!PST/EXT-70AT/DSX-125
Infinity 2-1 CCD Camera with Lucam Recorder
Custom Scientific 1.25" LRGB filters
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jrcrilly
Refractor wienie again
Reged: 04/30/03
Posts: 22364
Loc: NE Ohio
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Quote:
Hi All,
Greg/John thanks for the info. To get a little off topic what mount would you guys recommend for a 10" Meade OTA for visual & photgraphic use? With GOTO.
The problem is that the next step up would be a GM-8 with Gemini for about the price of a CGE ($2500). Either of those would be great, of course.
A well-tuned EQ-6 (Atlas) with a good Autostar conversion would be less expansive and perhaps good enough; it could certainly handle the weight.
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John C
Urban Observatory
Tele Vue Pronto
A&M/Astreya 76mm F/6 APO
TMB/LOMO 80mm F/7.5 APO
Tak FSQ-106N F/5 APO
Meade 152ED F/9 "APO"
152mm F/10 achromat
Tak CN-212 8" F/12 classical Cass/ F/4 Newt
Teeter 20" F/3.8 truss Newt w/ServoCat
LXD750, EM-200, CI-700
ST-10XME
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jrcrilly
Refractor wienie again
Reged: 04/30/03
Posts: 22364
Loc: NE Ohio
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|
Quote:
John,
So you think the LXD75 should/will do better then that. I was hoping to use it for photography as well as visual.
Well, let's define photography. For webcam planet shots, which is what the F/10 SCT is best at, sure - the LXD55/75 would probably do fine. For long exposures at F/10 you're gonna need a much more serious mount.
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John C
Urban Observatory
Tele Vue Pronto
A&M/Astreya 76mm F/6 APO
TMB/LOMO 80mm F/7.5 APO
Tak FSQ-106N F/5 APO
Meade 152ED F/9 "APO"
152mm F/10 achromat
Tak CN-212 8" F/12 classical Cass/ F/4 Newt
Teeter 20" F/3.8 truss Newt w/ServoCat
LXD750, EM-200, CI-700
ST-10XME
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GUNER
Pooh-Bah
Reged: 07/19/04
Posts: 1301
Loc: Bedminster,NJ USA
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Thanks for the info John
--------------------
Thomas
12" SuperCharged LX-200 GPS!!!
TAK SKY 90 on a Vixen Skypod
Stacked GOLD!PST/EXT-70AT/DSX-125
Infinity 2-1 CCD Camera with Lucam Recorder
Custom Scientific 1.25" LRGB filters
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rydberg
sage
Reged: 02/25/04
Posts: 326
Loc: Richmond, KY, USA
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Few days ago I finally had a very good observing session with the refurb mount. But still it had some issues: the right ascension was very noisy ("chattering"), and showing a big difference in response between the two directions, especially at low slew speeds.
Today I opened the the motor box up to take a look.
The encoder wheel, while still not bent (not much longer!), was rubbing against the side opposite to where the shaft comes from. It was easy to fix by loosening the set screw and moving the wheel back on the shaft. It rotates much better now
I decided also to check the worm gear.
Two of the allen screws (including the central one that adjust the tension in the worm gear) were completely loose!
At times I think that Quality Control in these mounts is to let a worker tighten ad loosen screws at random...
I am frankly amazed it worked at all.
Let's see if this adjustment make the go-to more reliable.
Marco
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Oberwerk 11x56
pentax PCF WP II 20x60
Garrett Optical 20x80 IF Gemini
8" LX90 f/10
Vixen ed80sf, Orion 80mm f/11 guidescope
Lxd55, Atlas eq-g
Celestron NexImage
Orion Deep Space Starshoot as a imager
Meade DSI pro as a guider.
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Greg K.
Reged: 12/11/03
Posts: 9939
Loc: Clifton Park, NY
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Quote:
At times I think that Quality Control in these mounts is to let a worker tighten ad loosen screws at random
No kidding.. Mine was the same way.
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NexStar 11 GPS
Orion SkyView Pro 8EQ w/ Autostar
15x70 Celestron SkyMasters
Orion 90mm Mak
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erik
telescope surgeon
Reged: 01/30/04
Posts: 24004
Loc: Hawaii 19 N lat -155 Long.
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don't forget about the worker that removes half of the parts just before shipment...
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-Erik Wilcox
Homebuilt 16" Truss Dob
SV 80mm ED Nighthawk NG on M1 ALT/AZ
Nikon Prostaff 65mm spotter on Trekpod
Konusvue 20x80 binos/Peterson pipemount
Orion 10x50 binos
Homebuilt 80mm f/5 refractor
Mirador 60mm f/12 1960's refractor
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