C9.25 mount problem
Posted 30 December 2012 - 10:19 AM
Posted 30 December 2012 - 11:22 AM
However, before that I would look at your power situation. At that temperature, batteries do get weak and the voltage can drop. When the voltage is insufficient you can get all kinds of crazy behavior like slews that won't stop.
Do you have an AC power adapter you can try instead of the battery? Another option would be to put the battery inside an insulated box (a picnic cooler would work) and put a heating pad inside to keep it warm.
If you try these things and the mount still fails at cold temperatures then it's definitely the mount and you'll need to talk to the vendor again.
Posted 30 December 2012 - 11:29 AM
EXACTLY what mount are you using...
Posted 30 December 2012 - 03:48 PM
Posted 30 December 2012 - 06:25 PM
Posted 30 December 2012 - 06:44 PM
If the power source is confirmed sound and the hand controller kept well above the -10C ambient temperature while the mount is operational, then I see no other way to resolve this but to try another mount under the same conditions: witnessed if possible by the vendor.
Where incidentally, do you stand with regard to the warranty on this 'scope/mount assembly ?
Posted 30 December 2012 - 07:06 PM
Posted 30 December 2012 - 11:35 PM
Send the vendor a video of the mount in running and failing mode. Include a view of a thermometer. He can't argue with the evidence.
Thanks to all the advice!!! I love this one in particular though... a 30 seconds, uncut video! Maybe they do not trust me but what can they say after they see it with their own eyes?? I'm starting to storyboard now!
Posted 31 December 2012 - 10:26 AM
Posted 11 January 2013 - 11:58 PM
Do these uncontrolled slews affect one or both axis?
If its just one axis and it's always the same axis then it might suggest a connection problem somewhere on or between the motor control board to the motors.
Otherwise, if the slewing can occur on either axis then I agree with the earlier posts that its likely a power problem. You'll want to check both the source (i.e. battery) and power at the motor board. I'd actually be tempted to strap a dew heater strip to the panel that covers the motor control boards. Just in case a its a problem on the motor control board, this might help heat the air slightly under the panel and transfer enough heat to the motor control board. If the slewing does not occur with the heater strip in place have a look at the motor control board and if the board was poorly soldered (i.e. cold solder joints or shows other signs of concerns) then I'd ask the vendor to replace the control board. There are other options to using a dew strip but you want to be careful to avoid heating things too much and too quickly.
I don't own a CG-5 but if I did, these are some of the items I'd look at.
Another thought is that if the heater strip does solve the problem, you may be able to avoid the problem just by sheltering the control panel from the wind or by insulating it better. Maybe this is something that you've already tried.
I hope you work it out.
Posted 12 January 2013 - 05:15 AM