This is a great tool if you're going to do a paint job with spray canister. I designed this with a lot of rigidity in mind (simulated) so that this won't break easily when you shake the canister while it is mounted.
There's also trigger lock if you're going to store the canister but don't want the hassle of taking off this spray gun.
Each one of the screw hole requires at least 35mm M3 screws paired with its own nut. You can ignore the locking pin slot if you don't need it.
The author hasn't provided the model origin yet.