Salt shaker (OpenSCAD)

thingiverse

LATEST VERSION: https://www.thingiverse.com/thing:3548762 I created a salt shaker using OpenSCAD, aiming to utilize the linear_extrude module's twist parameter for a screw-like design. However, I quickly discovered that this approach was not ideal due to messy results, concave surfaces, and lack of control. Instead, I turned to an existing screw library on Thingiverse, but it didn't quite meet my expectations as it failed to respect its parameters, producing inconsistent results. I then considered an alternative to OpenSCAD called ImplicitCAD, though the project remains immature, so I decided to wait before investing time in learning the new software. [2017-03-24] Version 3 was uploaded, featuring a revised salt shaker design that leveraged my helix_extrude library (http://www.thingiverse.com/thing:2200395) for the first time. Despite some potential issues, OpenSCAD rendered the STL file without warnings, whereas Slic3r flagged auto-repaired errors. [2017-06-15] I finally received my Prusa i3 MK3S and attempted to print this design, but it proved unprintable due to the initial flaws. I'm currently working on corrections to make it printable. [2017-06-16] Version 4 was created with adjustments to ensure printability, which successfully printed without supports. Key modifications included: Reducing tolerance in the threads using Angus' tolerance gauge (youtu.be/TYuLVN3YHw8) Extending the threads down into the shaker's interior to prevent mid-air threading issues Steepening the tip of the hole for easier printing Post-Printing Instructions: Clean the small holes at the top of the shaker with a small Allen key. Attach the cap at the bottom and screw it in using the handle of a fork or spoon. Tighten the cap by screwing it in and out a few times to loosen the threads, then remove it. Hold the shaker upside down over the holes with your palm covering them while filling it up to prevent salt leakage. Fill the shaker about halfway, then screw the cap all the way in. WARNING: PLA plastic is food safe, but bacteria can get trapped within the threads. Use caution when holding food in 3D printed parts. Designing This Object: As an OpenSCAD enthusiast, I enjoy tackling challenges like creating usable threads using basic functionalities. Unfortunately, some useful features, such as custom font support, are not yet available in the official release, so I relied on a nightly build.