Polar mount for Andrews 120cm

satelliteman

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I see there is a newly modified polar mount for the Raven/ASC 120cm dish. Looks like a modified Gibertini polar mount with an adaptor plate - Not cheap either :D
 
any pictures of it or a link to page showing them ?
 
the polar mount doesn't look too bad actually but not sure if I'd pay 159 for one of them

i thought they would have tried to buy the tooling to make the 1224's again but i guess not
 
He's using a polarmount from a Gibertini 150cm and fabricated a plate to bolt it to and the dish.
 
As mentioned in post #1.

That mount is used for the 120/150cm version Gib.
 
SSS price`s have always been day light robbery
 
wod said:
the polar mount doesn't look too bad actually but not sure if I'd pay 159 for one of them
I bought one a little while ago for 54€...

_http://www.satshop24.de/satshop24_s/gibertini_polarmount_fuer_150_cm_spiegel.html

When I got it I didn't really like the feel of the movement so now it is on the shelf in my den unused. When a CM one comes up I'll have that instead if the price is right.
 
By the way I can't see how that mount is going to work. I can't see any provision for declination adjustment. If you think of a diseqc motor it bolts to the mast and you adjust the polar axis by raising/lowering the motor elevation/angle. Motor elevation is always 90-lat (plus the correction factor for those that are bothered). Then you adjust declination using the dish clamp. Gibertini polar mount works the same. There are two points to adjust the elevation, one between the mast and the polar axis and the other between the polar axis and the dish. When you use the Gibertini polar mount it has to be used in conjunction with the az/el mount that comes with the dish. It is not a replacement. See my picture to see what I mean. In the mount in the SS pictures the declination adjustment between the polar axis and the dish mount seems to have been omitted which would mean the mount is only good for one latitude and no other.

If the photo doesn't make it clear what I'm saying I can bolt the mount together and post another picture but I'm hoping it's obvious.

Also, you can see the ss pictures are just a mock up as the actuator is closed all the way and the dish is still facing right. If that were set up properly, when the actuator was closed the dish would be pulled all the way to the left. _http://satellitesuperstore.com/motors.htm#36vhtoh
 

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There is an obvious declination shown in pic1 but as you say it seems to be fixed only from the mount design. Maybe an adjustment plate/arm has been omitted from the pictures as it's a mock up but a good point raised.
 
yes was going to mention that as there is no dish angle adjustment only the angle to setup of the polar mount
 
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