Aluminum Capsule Keychain CAD Design
Budget: $30 – $250 USD
I’m bringing a premium capsule-style keychain to market and need a mechanical CAD expert to turn my concept into a production-ready model. The part will be milled from aluminum, so wall thicknesses, fillets and tool access all have to make sense for CNC. I already have the exact overall dimensions mapped out; what I’m missing is the fully detailed 3D file and supporting drawings that a machine shop can pick up without questions.
Functional notes
• Anodised colour variations are planned, so surfaces must be uniform and free of undercuts that trap dye.
• An O-ring groove is required to give the capsule a reliable waterproof seal.
• One end should discreetly integrate a whistle cavity; the sound hole and airflow path need to be tuned but kept visually hidden when the cap is closed.
• My logo will be laser-engraved on the exterior, so please leave a flat, blemish-free zone for that detail.
What I need from you
• A parametric 3D model built in SolidWorks, Fusion 360 or similar, exported as a clean STEP file.
• 2D manufacturing drawing with critical dimensions, tolerances and call-outs for the O-ring specification.
• Quick render or screenshot set so I can review aesthetics before releasing the file to the machine shop.
I’ll supply a dimensioned sketch and thread specs the moment we start; you refine them for manufacturability, apply GD&T where sensible, and confirm there’s no clash between whistle channel, seal groove and engraving area.
If you’re comfortable designing small CNC-machined parts, understand how to hit tight tolerances in aluminum and enjoy adding clever details like hidden whistles, I’d love to see your portfolio and get this capsule ready for prototype.
Functional notes
• Anodised colour variations are planned, so surfaces must be uniform and free of undercuts that trap dye.
• An O-ring groove is required to give the capsule a reliable waterproof seal.
• One end should discreetly integrate a whistle cavity; the sound hole and airflow path need to be tuned but kept visually hidden when the cap is closed.
• My logo will be laser-engraved on the exterior, so please leave a flat, blemish-free zone for that detail.
What I need from you
• A parametric 3D model built in SolidWorks, Fusion 360 or similar, exported as a clean STEP file.
• 2D manufacturing drawing with critical dimensions, tolerances and call-outs for the O-ring specification.
• Quick render or screenshot set so I can review aesthetics before releasing the file to the machine shop.
I’ll supply a dimensioned sketch and thread specs the moment we start; you refine them for manufacturability, apply GD&T where sensible, and confirm there’s no clash between whistle channel, seal groove and engraving area.
If you’re comfortable designing small CNC-machined parts, understand how to hit tight tolerances in aluminum and enjoy adding clever details like hidden whistles, I’d love to see your portfolio and get this capsule ready for prototype.