Vixen sp mounts advice needed
Posted 09 July 2009 - 04:36 PM
Posted 09 July 2009 - 08:43 PM
Posted 09 July 2009 - 10:19 PM
I put an iOptron Gotonova kit on one of my super polaris mounts. I had some issues with it initially that had nothing to do with the gotonova, related to my power supply here.
But once I got them sorted out, the system works fabulously. Gotonova Super Polaris
Posted 09 July 2009 - 10:34 PM
Generally speaking your Vixen SP will have a drive in the RA axis only unless you have that adapter.
Getting drive motors is not that hard, you can use the Great Polaris motors and hand controller. However, the GP hand controller won't work on the old SP motors. And the old SP hand controller own't work on the newer GP motors.
Anyhow the GP stuff is pricey, very reliable (if you take care not to drop the controller), and occasionally found used. The main reason you don't see a lot of advertising for this stuff anymore is because everyone went to go-to.
Posted 09 July 2009 - 10:40 PM
I had the bracket from my other SP mount, which had one of the original skysensors on it. But if one doesn't have the bracket, or one of the later SP mounts with the bracket cast into the Dec assembly, It doesn't look to me like it would be difficult to fabricate one out of something like aluminum bar stock.
Posted 10 July 2009 - 06:46 AM
Posted 10 July 2009 - 09:05 AM
On my thread about the conversion, there are all kinds of pictures of the two common types of Super Polaris mount - the one with the cast-on bracket, and mine with the bolt on bracket.
The bracket is a lot more complex than it needs to be. I really believe that someone could fabricate one out of flat aluminum bar stock. At some point, I'll need to do this myself in order to put the skysensor motors back on my old mount. But for the summer, I think I have my hands full with other telescope projects!
Posted 10 July 2009 - 10:52 AM
Posted 10 July 2009 - 01:10 PM
The Gotonova controller circuitry and housing are different for the RA and Dec, though, and this is probably true of the other conversions as well.
I think the Vixen skysensors have all the controller circuitry in the hand controller, though, so their motors in their housings would be interchangeable (this is certainly true of the 5-pin motors with the original skysensor, others can tell you if it's true of the SS 2000 or the various Starbooks). You'd just need to make sure you plug the right cable into the right motor.
Posted 10 July 2009 - 01:12 PM
others can tell you if it's true of the SS 2000
Yes, the RA and DEC motors used with the SS2K are identical.
Posted 10 July 2009 - 05:30 PM
Posted 11 July 2009 - 01:56 AM
very precise if your worms etc are ok.
or you can go the lxd way depends how accurate you need it to be. I had an SP with a set of old 9V Orion motors, worked reasonably well with up to 2min unguided.
Posted 11 July 2009 - 08:49 AM
A nice feature about the Gotonova is the "polaris position" display, which shows you the "clock position" of Polaris in a polar finder reticle so you can quickly set the scope up and get to the alignment stars. It even has it as you'd see it in an inverting polar scope.
I was up and running in about 2 minutes, and Jupiter was simply amazing!
...and it never moved, while I spent the next hour observing with a 5x powermate and 15mm Swan eyepiece.
Posted 12 July 2009 - 05:36 AM
Posted 12 July 2009 - 10:24 AM
MANY THANKS TO EVERYONE NO MODS NEEDED
Posted 13 July 2009 - 09:52 AM