Inner Coin Box as addon to the "Mini Vault with Lever Tumbler"

If you like to use the "Mini Vault with Lever Tumbler" as a money box this inner box is recommended as internal storage.

It can also be used to store various parts in the standard vault

It solves the following problems:

1. The vault does not drop over any longer when the door is opened (no weights needed)
2. Coins do not fall out of the vault when the door is opened

printing suggestion:

use PLA or PETG with 0.2 Structural, 0.4 Nozzle, no Supports