Finder guiding issues with a Lodestar

[Ivor]

OK I managed to produce a PHD log file last night (https://drive.google.com/file/d/0B4aWTDNICIFvS1R1SW1zM19HU0U/edit?usp=sharing) from my quick look this morning before I head off the graph appears smoother in PECPrep with clear peaks and the 133 harmonnic has disappeared. However I don't think my setup was right as both RA and DEC errors are larger. It looks like the markers I have in the ground have moved as polar alignment was off and the log file shows RA duration maxing out alot, I also don't think I had the balance right I still have this stiffness with the clutch so balancing is an educated guess (clearly wrong this time).



I will replace the DEC bearings tomorrow as Saturday night looks hopeful; I feel like I'm a little closer to solving this.

[MarkS]

To me, the plot still looks all over the place.

The chart you posted shows it dominated by the 182sec 2nd harmonic of the transfer gear with 133sec, 66sec. A 44sec period (3rd harmonic of 133) has also appeared.  

The worm bearing is still showing us its ugly characteristic.

Mark