Hi Greg
Great to see your new system going so well. I think it's a great achievement to get a platform tracking this well on the first try. My first one was nowhere near as accurate. I got better results with later designs and a lot of help from friends at the ASV.
Most of the platforms I've built were made with a jig. I know you used Reiner Vogel's excellent design which doesn't need one but I think you could use a jig to sand or grind out any error in the sectors. I can send you a short video of a jig being used if that helps you understand how they work.
I see Bojan is making some suggestions to help with the electronics. Perhaps try those first.
I hope to see some of your photos one day.
Rod.
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