maxmirot Posted March 19, 2017 Report Share Posted March 19, 2017 What is happening? This does not look ok. Max Link to comment Share on other sites More sharing options...
0 MarkS Posted March 21, 2017 Report Share Posted March 21, 2017 Max, This looks to me like the DE balance is way off. Did the system report a Position Error? Which mount are you using and how heavy is the payload? (My DDM85 seldom registers DE current above 1A) Mark Link to comment Share on other sites More sharing options...
0 maxmirot Posted March 21, 2017 Author Report Share Posted March 21, 2017 Dec Balance was perfect. All sky positions at 2.2 amp scale. I am estimating about 35 kg payload Max Link to comment Share on other sites More sharing options...
0 maxmirot Posted March 21, 2017 Author Report Share Posted March 21, 2017 Two files 2017_3_19_9h23m.txt 2017_3_19_15h18m.txt Link to comment Share on other sites More sharing options...
0 GeorgeCarey Posted March 21, 2017 Report Share Posted March 21, 2017 If balance is perfect then it may be that you have the dreaded 'rising current' problem. My mount had this and had to go back to Austria. I never got a definitive answer to what caused the problem, but it was most likely due to a tight bearing on the DEC axis. ASA put new bearings in and the problem was fixed. The rising current problem was more common on DDM60 mounts, so I am surprised you have it on a DD Link to comment Share on other sites More sharing options...
0 maxmirot Posted March 21, 2017 Author Report Share Posted March 21, 2017 If balance is perfect then it may be that you have the dreaded 'rising current' problem. My mount had this and had to go back to Austria. I never got a definitive answer to what caused the problem, but it was most likely due to a tight bearing on the DEC axis. ASA put new bearings in and the problem was fixed. The rising current problem was more common on DDM60 mounts, so I am surprised you have it on a DD Something is weird with the mount. It has problems. I have played with balance for hours , it looks good, then tracking acts ups. Actually It got Dec balance perfect at 2.2 amp scale. That's perfect at all ALT and AZ positions. I could never get RA to balance as well. It would be several bars out at bellow 25 degrees E and W. At 45 degrees E and W it would be excellent , less than a bar. I using a radial offset weight to get Dec perfect. RA should be easy to get perfect in all position, I think. But it never is. The current should not ramp up from .5 amps to 2.0 in either axis. Eventually tracking gets flaky. I see it go bad more in RA the Dec. The is like because that most driven element. Perhaps there is some adjustments but I kind of expect it to go back to Austria. Martin emailed me to do a Skype- team viewer session. Max Link to comment Share on other sites More sharing options...
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maxmirot
What is happening? This does not look ok.
Max
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