barn door memo

I should document some lessons learned with the barn door tracker...

Need to watch the weight balance point or centre of gravity shift when the top plate has risen quite high. When out at the end of the curved rod, there's a chance the top plate could flop open.

To speed set-up, do a very long exposure at the beginning. 3 or 4 minutes. And use this to dial out the drift.

Perform daytime polar scope alignment. Don't forget to do this.