Parcel Delivery System Challenge Entry

grabcad

Wow! This project has been a real journey, and I'm excited to share its progress with you. Here are the main points of my Parcel Delivery System Challenge entry: 1. The device features sheet metal construction using 12-18 gauge aluminum held together by rivets and one-way security screws. It employs a delay time relay, an ON-ON switch for locked/unlocked indication, an electric solenoid lock, and an electromagnetic lock (a fail-secure combination that works even in case of total system or power failure - note that just a solenoid lock isn't enough as it won't open under pressure). 2. The electronics use 6-pin Molex Micro Fit 3.0 connectors for easy assembly and modification. 3. To prevent tampering, I've used rivets and one-way screws in strategic places, and modified the drawer slides to make them harder to remove while still being accessible for technicians when needed. 4. Interference prevention is ensured by a unique housing design that stops anything below the drawer from catching onto it, and a sliding top cover that works independently of the drawer and provides opening force once the locks are released. This also allows the drawer to open even if an oversized or expanding item is placed within it. 5. Lastly, I've removed the rubber stoppers from the drawer slides to reduce tension on the spring mechanisms that release the drawer. I hope this covers everything! If you have any questions, feel free to ask. Enjoy the videos and let me know what you think of my design!