Project Overview I am developing a functional aerosol accessory for graffiti artists called a Stencil Cap. This device mounts onto a spray can and reduces paint output to allow extremely fine controlled lines for stencil work and detail painting. This is a real physical product that must be engineered for functionality and manufacturability — not just a visual model. Reference images of the concept will be provided. ⸻ Core Product Function The device: • Attaches securely to a Montana 94 spray can • Restricts spray output through a small precision aperture • Redirects excess paint into an attached bottle • Includes internal geometry to control paint flow • Supports attachment of a standard plastic water bottle • Integrates engraved “FREE WALLS” branding ⸻ Paint Capture System (Critical Requirement) The threaded bottle serves as a paint collection reservoir. The design must intentionally redirect suppressed paint flow into the bottle. Internal geometry must: • Guide excess paint away from the outlet • Prevent paint from backing toward the spray nozzle • Allow gravity drainage into the bottle • Maintain stable spray performance Designer should propose appropriate internal channel, funnel, or ridge system. ⸻ Bottle Attachment The design must: • Support standard plastic water bottle threading • Maintain airtight fit • Allow repeated attachment/removal • Be structurally durable Designer should confirm standard bottle thread specification. ⸻ Spray Restriction System The outlet must include: • Precision small aperture for fine line output • Stable airflow geometry • Reduced clogging risk • Ability to modify hole diameter for testing Designer is encouraged to recommend optimal geometry. ⸻ Spray Can Compatibility The rear interface must: • Fit Montana 94 spray cans securely • Align properly with spray valve • Maintain consistent seal and positioning Designer should request measurements if needed. ⸻ Branding Requirement The design must include: • Engraved “FREE WALLS” logo • Clean professional integration • Placement that does not interfere with functionality Logo file will be supplied. ⸻ Deliverables Required Final delivery must include: • STEP file (required) • STL file (required) • Native CAD source file (Fusion 360 / SolidWorks / similar) • Preview renders Design must be suitable for: • Prototyping via 3D printing • Future injection molding ⸻ Ownership & Rights (Mandatory) This is a work-for-hire project. Upon payment: • I retain full exclusive ownership of the design • Freelancer may not reuse or resell the design • No portfolio usage without permission ⸻ Preferred Experience Strong preference for designers with experience in: • Consumer product engineering • Aerosol or spray systems • Plastic product design • Injection-moldable geometry ⸻ To Apply Please include: • Examples of functional product CAD work • Software used • Confirmation you can deliver STEP + native files