9x19mm Laser Training Cartridge & Dock Design
USD 30–250
About the project
Job Title: Complete Design of 9x19mm Laser Training Cartridge (Electronics + 3D Shell) & Charging Dock Job Description: Fixed Budget: $100 USD (Firm. No crypto, no budget renegotiation, no auto-generated placeholder bids). I need a fully manufacturable, production-ready design for a dry-fire 9×19 mm laser training cartridge and its corresponding charging dock. Dimensional Constraint: The final assembly must strictly conform to standard 9×19 mm cartridge dimensions (CIP/SAAMI spec) to chamber and seat properly in standard firearms. Shell will be 3D printed via MJF (HP Multi Jet Fusion / PA12). Key Requirements & Specifications: Striker Activation & Optics: Standard 650 nm red laser (<5 mW, 3V). Momentary trigger via rear striker impact switch. Latency <10 ms. Rear switch must feature proper mechanical damping/cushioning to survive 1,000+ striker hits without damage. Power & Charging: Miniature rechargeable battery (internal). Charged via two exposed rear pogo pads. Charging dock fed by 5V USB. Dock must handle the charging circuit (keep heat and bulk out of the cartridge body). Charge time ~60 min; minimum 100 activations per full charge. Deliverables: Complete 3D CAD files (STEP format) for the split shell, striker plunger mechanism, and charging dock. Schematics, PCB layout, Gerber files, and pick-and-place files for both cartridge and dock. Fully sourced BOM with exact supplier part numbers (LCSC / DigiKey / Mouser). Assembly and integration instructions. Application Requirement: Do NOT send generic copy-paste proposals. Briefly state in your first sentence: Which battery form factor you plan to use inside the 9×19 mm envelope. Whether you will use an ultra-low-power MCU or a pure analog/RC pulse-stretching circuit for trigger debouncing and laser duration.
Skills required
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