Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:4395096.

This is just a simple tool holder/hanger used to store a putty knife/scraper, wire brush, and nozzle tip cleaner. On the left side of a DaVinci Pro 3-in-1, there are two small holes that you can attach this part to using M3 screws. These holes may be present in other DaVinci models.