Traditional, lacquer based kintsugi, preparing piece to fit back together

This video shows a piece being taken apart. The vase had extensive secondary cracks that were too wide to be repaired as is so I had to finish the breaks. It broke along some lines I didn’t see cracks in but now all the pieces don’t have any more cracks.
For more on traditional, lacquer based kintsugi see kintugi.com

Traditional, lacquer based kintsugi, step 8, sanding sabi

This video shows sanding sabi that has middle black lacquer on it. I use a #800 mesh sanding stone and several cutting tools. The glaze is a middle fire type that will easily stain so I make sure there is not a puddle of water on the surface.
For more on traditional, lacquer based kintsugi see kintugi.com
See also https://www.kintugi.com/?page_id=80