Then, we need to assemble this frame with glue. Usual liquid nails. Here all details made very accurate. It is necessary condition to make the construction strong. Then, check it on place and glue up.
This glue lies quite long if you lay it thickly but very quickly dries if suddenly become thin. No need to grudge glue. Better, if glue lays thicker. Let there be some beads of it. We can remove them further. Here we need carefully cover all edge of frame...
It is a my English translation of my video
