Key & wallet Hook

thingiverse

The innovative key and wallet hook was designed to efficiently organize personal items when returning home from school. Its simple yet effective design enables users to store keys, wallets, and even hang watches and sunglasses. Print Settings Printer: QIDI Rafts: Doesn't Matter Supports: Yes Resolution: 200 microns Infill: 25% Post-Printing Rendered in SolidWorks How I Designed This I designed this project using SolidWorks. This is my second version of the key and wallet hook, which allows me to hold both my regular and skinny wallets. It's an assembly of two separate part files: the shell and the hook. The shell consists of a rectangle extruded into a cube, with a cutout interior making it a shell. Two separate pockets were created to store small and regular wallets separately by adding a small wall. Small rectangles were then cut out from the floor, maintaining structural integrity while reducing material usage. Two small holes are placed on the back wall of the shell, allowing for easy attachment to walls via thumbtacks or 3M removable wall tape. Rendered image of the shell From the shell, I created the hook as a separate part file in SolidWorks. An extruded circle was first created, followed by a half-circle on a perpendicular surface and then swept around it, resulting in a hook. Rendered image of a hook I then created an assembly file where I imported the hooks into my extruded shell. Three hooks were placed on the front of the shell, while two offsetting hooks were placed on each side. This design with two separate components allows for unique and customizable placements of the hook and each size of wallet. Project: Creating Your Own Personal Key & Wallet Hook Overall & Background You will learn about structural integrity and material savings. You'll also become familiar with reverse engineering in projects, as well as the basics of 3D printing and CAD models. This project will teach students to assemble models. Objective: * Be able to 3D print a unique and customized key and wallet hook * Stretch the limits of 3D printing with supports * Learn basic steps of 3D CAD (SolidWorks) * Create a customizable project according to your needs and desires Audiences: * Anyone new to 3D printing or wanting to create useful products for themselves Subject: * Basic engineering * Math * CAD and 3D modeling Skills Learned: * 3D Printing * Assembly Modeling * Reverse Engineering * 3D CAD * Structural Integrity * Engineering Report (How to write an engineering report) Lesson/Activity: Step 1: Gather necessary items, including a wallet, keys, watches, calipers or ruler, computer with 3D modeling program installed, and 3D printer. Step 2: Measure the length, width, and height of the wallet using calipers or a ruler. Record accurate measurements for future reference. Step 3: Create an assembly in your 3D modeling program, placing the hook onto the shell using the mate feature to attach it in feasible locations to place keys and watches. Step 4: Upon completion of printing and designing each project, begin writing up a report that includes the problem and design solution, instructions on how to recreate the project, any references used, and unique design solutions. The teacher may also require an estimated project budget and schedule. Duration: The duration for a teacher to complete this project with their students can take anywhere from a few hours to a few days depending on student experience and printer printing time. Preperation: Students should have minimal experience with 3D modeling, reverse engineering, or measuring objects. They should also be able to work a 3D printer and calipers. Materials Required: * Wallet * Keys * Watches * Calipers or ruler * Computer with 3D modeling program installed * 3D printer References: Here are some basic instructions on 3D modeling: http://www.instructables.com/id/Intro-to-3D-Modeling/ Rubric and Assessment: Reverse engineering * How accurate are the measurements of the length, width, and height? * Does the wallet fit inside the shell? Hook Placement * Do the keys and watched fit on the hooks? * Is the placement of the hooks agronomical? 3D Modeling * How efficient were the steps taken to create the object? * Did the student think about areas that don’t require all the plastic? Print Quality * Did the student utilize proper supports, and fill percentage? * Did the student understand the tradeoff of print time and print quality? Handouts and Assets: The rubric in the previous section above can be used to help assist students design their project as well as teachers to grade the project.