This bracket is to provide additional support for horizontally mounted fire extinguishers. Originally designed and printed as a solid base but post printing revision added a ring option to save material.
Source files in .step and Fusion 360 .f3d format are provided in order to modify for your diameter of fire extinguisher. The STLs uploaded are for a 3.25in diameter fire extinguisher.
Fusion file can easily be modified by changing the user defined parameters, should be no need to adjust the model itself for size changes like diameter or height of the ring.
The author marked this model as their own original creation.