I need your expertise again.
Have got my rig together now and adjusted, calibrated and learned everything I can about programming autofocus and creating sequences in SGp ect.
Everything seems to work as it should.
1. I do polar alinment through mount and then in sharpcap.
(Don't give up until I get "Exellent" and sets the Dec axis back to 0 degrees).
2. Mount is balanced.
3. The cables go up to a USB hub that sits centrally the mount for best balance.
4. I have adjusted all the backlash in both the RA axis and the DEC axis. (I can spin the gears easily with my fingers).
5. Everything is balanced and moves smoothly (with the focus tube protruding in the position where I have the best focus).
6. The guide camera has perfect focus.
7. I run ASCOM on everything
8. I do three-star alignment in EQMOD and it´s very precise. (Arcturus, Vega and Capella)
Now is the time to calibrate in PHD2 and start guiding.
I callibrate to the northwest with DEC axis between -20/+20 degrees as proposed by PHD2.
With moonlight in the south and excellent seeing.
I get no errors from calibration.
I do have a Dark Library.
Get RMS error between 2-3 after a few seconds and after a few minutes I'm well over 100.
I run Guide Assistance and entered the proposed values.
The same thing happens and PHD2 thinks that cables are snaged.
(They are not).
A few nights ago I managed to get down to 1 arc RMS error and it stayed there all night.
The evening after it returned to the same horrible values that get worse the longer I go.
Both on RA and DEC.
Both nights had starry weather, no clouds and the moon was low on the horizon with quite a high magnitude. (yellowish faint color)
SNR on the stars in PHD2 is around 25.
I have been at it now for almost three weeks and I cannot for life in me get this to work.
Could it be because the guide camera does not sit 90 degrees parallel to the mount?
Mount: SW HEQ5. (Orginal)
Telescope: SW 80ed 600mm FL
Guide camera: Orion Starshoot
Guide scope: Orion 50mm 162mm FL
Imaging camera: ZWO ASI 183 MM
Autofocus motor: Sesto Senso (to the right of the telescope)
I really hope one of you has gone through the same thing and can help me.
I humbly thank you.