Synscan slow slewing problem
Posted 25 February 2011 - 01:11 PM
Needless to say the problem is intermittent (internal connection?)
One other thing at low rates of manual slewing the Azimuth movement is "jerky", whilst the Altitudinal movement is smooth.
Posted 25 February 2011 - 10:53 PM
The jerky-ness could be a couple things. One could be the backlash setting. The other could be the clutching is too loose.
I have bought one of these new recently, so still trying to find my way around it. I've tightened the clutches to where manual (without the controller) is possible, but not likely. This really eliminates the possibility of manual movement, but the controller movement is better.
Does this help?
Posted 26 February 2011 - 08:14 AM
On auto slew I have no idea what it does, but if it has to slew a large distance it sounds like rate 9.
The point is that in mid slew (in azimuth, manual or auto) it can suddenly slow down, sound really laboured and then pick up again. When it does this it loses goto accuracy.
Of course it is not a regular occurence. I have just been slewing alot indoors to try and "loosen" things up/identify the sticking point and after some early hesistation, it now seems to be OK, but I'm not holding my breath!
Posted 27 February 2011 - 10:29 PM
When I got my mount, the Az axis was so tight that you'd think you were going to break something if you forced it. The alt, on the other hand, would move without much force. My first impulse was to loosen the Alt to match (and it looks like it's a pain to do this). However, in doing some reading, the real answer was to tighten the alt axis, which is relatively easy to do, to match the tightness on the az, and use the hand controller for all slewing.
Now, not saying this is your issue, but I think if you tested a few slews, you should see the mount stair stepping to get to an object, and see if that is where the slowing down is, and when/where it's slipping.