Target 3-Tier Status Indicator

thingiverse

##The Problem I work at a small form-factor Target where space is extremely limited. We have just over a dozen 3-tier carts that we use to move merchandise around. Unfortunately, a persistent problem we face is that people frequently abandon these carts while they are still in use without any indication of what items are in them. This presents several operational issues that can extend beyond time management and a diminished pool of available 3-tiers. ##The Previous Solution We tried using laminated paper that can be written on with dry-erase markers, but several problems arose from this approach, especially regarding usability and durability. While dry-erase markers do work on lamination, if the writing is left for too long, it often requires water to remove, which can be time-consuming (or unhygienic). Additionally, the need to locate a marker in the first place adds further inconvenience, often resulting in the solution being abandoned altogether. Unfortunately, if the writing is not erased and taken at face value, it tends to create more issues than it resolves. Moreover, since the materials used are just paper and thin plastic, they quickly get damaged and torn, making them less suitable for long-term use. ##The New Solution I have made an effort to address the issues with the previous solution. It doesn't require a marker or wet erasure and is constructed from more durable hard plastic, which significantly extends its lifespan. When turned, it produces a satisfying audible and tactile click. In my opinion, this feedback is not only pleasant but also adds an allure to actively use the dial. --- ##What's In The Box This package includes five obj files. The files named "housing," "body," and "knob" represent the three components that make up the design. These parts easily fit together without the need for tools or complex assembly. The files labeled "1x" and "5x" contain all three components needed to create either one or five complete dials. They are arranged in a compact manner to minimize travel time. Once printed and assembled according to the instructions provided below, the device is ready to be deployed. I opted for zip ties as they were free, but binder clips or carabiners may be a better solution. --- ##Printing **Printed using the Ender 3 v2 neo** *220mm x 220mm x 250mm print space* *0.4mm Nozzle* **Note**: This model was designed with the following *layer height, wall thickness, and top/bottom thickness* in mind; it is important that these settings are retained. The rest are recommended, especially if you have the same or a similar printer. - Layer Height: 0.16mm - Wall Thickness: 0.8mm - Wall Line Count: 2 - Top/Bottom Thickness: 0.64mm - Layers: 4 - Infill Density: 20% - Infill Pattern: Triangles - Printing Temp: 200°C - Build Plate Temp: 60°C - Printing Speed: 60mm/s - Initial Layer Speed: 25mm/s - Retraction: Enabled - Retraction Distance: 6mm - Retraction Speed: 25mm/s - Print Cooling: Enabled - Fan Speed: 100% - Initial Fan Speed: 0% - Generate Support: Disabled - *All overhangs are >45° such that no support is needed* - Build Plate Adhesion: None - *Any adhesion method touching the model is not advised. Tolerance is low between the housing and dial; binding may occur even after cleanup* --- ##Assembly **1.** Remove parts from the printing bed and clean up any stringing or defects. *Be especially vigilant about this step if any adhesion technique was used.* **2.** *Gently* disjoin each of the 3 curved arms at the top of the body from the hexagonal surface beneath by pushing from the ends of the arms toward the center of the axle. **3.** Insert the X-shaped end of the body into the open side of the housing, through the small opposing hole. *It should slide into place with little force and the opposing flat faces should be flush.* **4.** With the body and housing joined, line up the dedents on the X with the indents on the inside of the knob. With the broad opposing surface flat on a table, push the aligned knob down onto the X. *There should be a subtle feeling of the dedents slotting into place.*