There is a solar tracking mode on the Astrotrac TT-320X which will make solar imaging much easier. This is activated by pressing the brightness button while powering up i.e. plugging in the external battery pack. Then the Astrotrac is activated for tracking by pressing the play button – once to start the initialisation process and then a second time to start tracking.
I then mounted my Skywatcher ED80 onto this to do solar imaging with the Baader Herschel prism with Baader U filter, and also with the double-stacked Baader Solar continuum. I used the full-spectrum Olympus E-PL5 for the Baader U images, and Olympus E-P5 for the Baader Solar continuum images.
These are the images of the setup:
These are the images of the sun taken with this setup.
Previously, I have had to adjust the telescope every now and then to keep the sun in view when imaging it. Now with the Astrotrac, it keeps the sun within view for a much longer period of time (with just aligning it to the north). Hopefully this will allow me to capture images of the sun for stacking in the future.