Open Source Paint Aerosal Can

Basics

• Part of the Open Source Finishing Construction Set
• A Canister that uses Aerosol Propellants to propell paint out of an aerosol nozzle
• Essentially "An Airbrush System in A Can!"
• May be a bit less prefessional than an actual spray gun, but it is very portable, stores well, and is ready to go with the press of a button (ie no setup)

Used For

• Spray Painting Parts
• Spray Painting Assembled Devices
• Misc Projects that Require Spray Painting (Art etc)

Industry Standards

• This seems to be a relitively reliable source that reviewd common brands

Existing Open Source Designs

• There seem to be little diy designs (Most likely due to the difficulty in making/obtaining propellants, and working with high pressures. The ones that do exist fall into two categories, pressurized air designs (often utilizing standard aerosol cans with air receiving ports added via screwing or welding them to the side), or pump based designs
• This Document is a bit old (1991), but it adresses the issues associated with DME Propellants

Minimum Viable Product

• Cheap
• Safe
• Effective
• Long Shelf Life
• Refillable/Reusable (With the equipment used to make it: not home level (More likely makerspace level))

Basic Design

Can

• The Bottom Celendrical Part

Lid

• The Part that seals the chamber made by the can
• Holds the Sprayer Assembly in Place

Sprayer Assembly

• Explained best by this image
• If we wanted to do everything ourselves, a belleville washer could replace the spring (possibly, need to do the math)

See Also

• Open Source Finishing Construction Set
• Aerosol Propellants

Useful Links

• Wikipedia Page on Aerosol Spray