ubique
16-09-2022, 11:43 AM
CELESTRON CGE MOUNT - BELT DRIVE
The CGE Mount was released in 2002 and is the American made predecessor to the current CGE Pro a Chinese produced mount introduced around 2010.
Celestron tried to produce a high quality mount by using H.M.Berg (https://www.wmberg.com/products/gears) to produce the high precision bronze gear drive and Losmandy to make the rest of it. These mounts were let down by the Ethernet patch cables and RJ45n sockets, the mechanical side was very good the electronic side not so good.
Something a little different, this is a modified CGE mount that no longer uses the notoriously troublesome Celestron electronics, plugs and motors. The connecting plugs are now Male Female Plug, Aviation Air Socket connectors with high quality wiring.
This mount has been converted to EQ6 / HEQ6 Skywatcher electronics, Skywatcher Stepper Motors and a modified Rowan Belt Drive System, thus making it repairable and future proofing it. Skywatcher parts are readily available, once Celestron brings out a new mount the parts supply dries up.
Carrying capacity is 28kg; these mounts were designed to carry a C14. The CGE mount was made in the USA by Losmandy for Celestron, thats why they were highly regarded for astrophotography. You can see a lot of Losmandy G11 parts used in these mounts.
The R.A. and Dec gears are 180 teeth, 5.625 diameter (U.S. manufactured by W.M. Berg) bronze drive gear mated with stainless steel worm shafts preloaded to maintain gear mesh while clutch tension varies, manufactured to AGMA 10 quality. In comparison the Losmandy G11 drive system uses the same 5.625" diameter gears but its a 7075 aluminium gear with 360 teeth.
Gear size matters for accurate tracking the Skywatcher eq6/ HEQ6 gear size is 92mm or 3.6 inches compared to the CGEs 5.625 inch or142mm.
The original electronics module has been replaced with a longer version milled out of a solid block of aluminium in order to fit the Skywatcher face panel and cables. It also houses three separate Jaycar power supplies, 2 x 12volt to supply power to the mount or dew heaters or other devices and 1x 5 volt outlet.
There is also a 115mm counterweight extension bar; you can mount a C11 with only one counterweight.
There is the option to mount the CGE mount on the tripod or on a pier, included is a 250mm diameter base plate that can easily be bolted to any pier top plate, if this is used the mount can be assembled and disassembled and polar alignment isnt lost.
Everything apart from the weights fits into the custom Pelican 1650 case.
Comes with 2 x counterweights.
A unique mount that will be working long into the future.
Information here -
https://www.bhphotovideo.com/c/product/285507-REG/Celestron_91524_CGE_Motorized_Equat orial_Telescope.html/overview
CGE Manual here -
https://www.osn.iaa.csic.es/sites/default/files/documents/cge1400_manual.pdf
Specifications here-
http://analyticalscicom.siteprotect.net/Astronomy/Telescopes/imagesc/Celestron%20Web/CGE/CGE.htm
Original specifications.
Mechanics
CNC machined aluminum and stainless steel components
RA axis
1 solid ground stainless steel shaft
Two Preloaded .9835 I.D. x 2.047 O.D. tapered roller bearing
One 4.724 O.D. x 3.543 I.D. thrust bearing
180 tooth, 5.625 diameter enveloping bronze gear preloaded to maintain gear mesh while clutch tension varies, manufactured to AGMA 10 quality.
.4375 diameter precision 303 stainless steel worm, manufactured to AGMA 10 quality
4 point RA clutch system pre-loading a 4.65 stainless steel disk for no-slip drive and pointing precision
Declination axis
1 solid ground stainless steel shaft
Two Pre-loaded .9835 I.D. x 2.047 O.D. tapered roller bearings
One 3.250 O.D. x 2.500 I.D. thrust bearing
180 tooth, 5.625 diameter non- enveloping bronze gear preloaded to maintain gear mesh while clutch tension varies, manufactured to AGMA 10 quality.
.4375 diameter precision 303 stainless steel worm, manufactured to AGMA 10 quality
2 point Dec clutch system pre-loading a 4.65 stainless steel disk for no-slip drive and pointing precision
Latitude Range: 10Ί to 60Ί
CGE Maximum Payload: 65 lbs.
Tripod
Tripod height: 36 to 50
Leg material: cold rolled carbon steel
Upper leg diameter: 2.75
Lower leg diameter: 2.375
This is very heavy and would have to be sent through a transport company, it would comprise two boxes.
PLEASE NOTE: THE C11 OTA IN THE PICTURES IS NOT INCLUDED.
$2800 plus shipping
PM me if you are interested
The CGE Mount was released in 2002 and is the American made predecessor to the current CGE Pro a Chinese produced mount introduced around 2010.
Celestron tried to produce a high quality mount by using H.M.Berg (https://www.wmberg.com/products/gears) to produce the high precision bronze gear drive and Losmandy to make the rest of it. These mounts were let down by the Ethernet patch cables and RJ45n sockets, the mechanical side was very good the electronic side not so good.
Something a little different, this is a modified CGE mount that no longer uses the notoriously troublesome Celestron electronics, plugs and motors. The connecting plugs are now Male Female Plug, Aviation Air Socket connectors with high quality wiring.
This mount has been converted to EQ6 / HEQ6 Skywatcher electronics, Skywatcher Stepper Motors and a modified Rowan Belt Drive System, thus making it repairable and future proofing it. Skywatcher parts are readily available, once Celestron brings out a new mount the parts supply dries up.
Carrying capacity is 28kg; these mounts were designed to carry a C14. The CGE mount was made in the USA by Losmandy for Celestron, thats why they were highly regarded for astrophotography. You can see a lot of Losmandy G11 parts used in these mounts.
The R.A. and Dec gears are 180 teeth, 5.625 diameter (U.S. manufactured by W.M. Berg) bronze drive gear mated with stainless steel worm shafts preloaded to maintain gear mesh while clutch tension varies, manufactured to AGMA 10 quality. In comparison the Losmandy G11 drive system uses the same 5.625" diameter gears but its a 7075 aluminium gear with 360 teeth.
Gear size matters for accurate tracking the Skywatcher eq6/ HEQ6 gear size is 92mm or 3.6 inches compared to the CGEs 5.625 inch or142mm.
The original electronics module has been replaced with a longer version milled out of a solid block of aluminium in order to fit the Skywatcher face panel and cables. It also houses three separate Jaycar power supplies, 2 x 12volt to supply power to the mount or dew heaters or other devices and 1x 5 volt outlet.
There is also a 115mm counterweight extension bar; you can mount a C11 with only one counterweight.
There is the option to mount the CGE mount on the tripod or on a pier, included is a 250mm diameter base plate that can easily be bolted to any pier top plate, if this is used the mount can be assembled and disassembled and polar alignment isnt lost.
Everything apart from the weights fits into the custom Pelican 1650 case.
Comes with 2 x counterweights.
A unique mount that will be working long into the future.
Information here -
https://www.bhphotovideo.com/c/product/285507-REG/Celestron_91524_CGE_Motorized_Equat orial_Telescope.html/overview
CGE Manual here -
https://www.osn.iaa.csic.es/sites/default/files/documents/cge1400_manual.pdf
Specifications here-
http://analyticalscicom.siteprotect.net/Astronomy/Telescopes/imagesc/Celestron%20Web/CGE/CGE.htm
Original specifications.
Mechanics
CNC machined aluminum and stainless steel components
RA axis
1 solid ground stainless steel shaft
Two Preloaded .9835 I.D. x 2.047 O.D. tapered roller bearing
One 4.724 O.D. x 3.543 I.D. thrust bearing
180 tooth, 5.625 diameter enveloping bronze gear preloaded to maintain gear mesh while clutch tension varies, manufactured to AGMA 10 quality.
.4375 diameter precision 303 stainless steel worm, manufactured to AGMA 10 quality
4 point RA clutch system pre-loading a 4.65 stainless steel disk for no-slip drive and pointing precision
Declination axis
1 solid ground stainless steel shaft
Two Pre-loaded .9835 I.D. x 2.047 O.D. tapered roller bearings
One 3.250 O.D. x 2.500 I.D. thrust bearing
180 tooth, 5.625 diameter non- enveloping bronze gear preloaded to maintain gear mesh while clutch tension varies, manufactured to AGMA 10 quality.
.4375 diameter precision 303 stainless steel worm, manufactured to AGMA 10 quality
2 point Dec clutch system pre-loading a 4.65 stainless steel disk for no-slip drive and pointing precision
Latitude Range: 10Ί to 60Ί
CGE Maximum Payload: 65 lbs.
Tripod
Tripod height: 36 to 50
Leg material: cold rolled carbon steel
Upper leg diameter: 2.75
Lower leg diameter: 2.375
This is very heavy and would have to be sent through a transport company, it would comprise two boxes.
PLEASE NOTE: THE C11 OTA IN THE PICTURES IS NOT INCLUDED.
$2800 plus shipping
PM me if you are interested