Customizable Stackable Coasters
Change the image to use your own logo or graphic.
Example images included for reference.
Instructions:
- Use a app link Gimp or Photoshop to reduce your image to about 65,000 total pixels or less. About 256x256 but it doesn't need to be perfectly square.
- Invert the image if needed so that it is a black background.
- Optionally, add a 1 pixel radius blur after reducing the image to help make a smoother mess. (In Gimp this is the Gausian Blur under filters.)
- Save or export you image as a .PNG
- load the OpenSCAD file and change the image_file variable to the path of you PNG image.
- Important: Also change the image_pixels variable to be the actual width and height in pixels or your image. Other variables can be adjusted to your liking.
- render and save as an STL from OpenSCAD.
- Slice and print to taste.
Note: sometimes the STL from OpenSCAD directly might not load properly to the slicer. Use a program like MeshMixer to correct it if this happens.
