Thank you Jeff, glad you're enjoying it
Some info here on how I do the frame dividers etc.
First I make and fit the frame dry before soldering the joint. I remove and clean it up then glue it in place.
Then the divider is held with masking tape while I solder one side after which it is fairly secure to do the other end. Then just a good clean up with sandpaper. This glue has quite good gap filling properties.