Four cream framed prints in a 2 x 2 grid on a tan wall, each showing a different cream line pattern on a dark square plate.
  • Four cream framed prints in a 2 x 2 grid on a tan wall, each showing a different cream line pattern on a dark square plate.
  • Four separate portrait prints at left and a larger grid sheet at right that holds the same four plates on one page.
  • A large close-up of cream curved lines on a dark plate, next to a small print with a red square marking the 1,700 pixel crop.
  • A blue and rust sign map of the n = 3, m = 5 pattern beside the finished print, with the formula and the list of four plates.
  • Five cream prints in different proportions labelled 2:3, 3:4, 4:5, 11:14 and ISO A with their pixel sizes at 300 dpi.
  • A Chladni print in four frames of decreasing size, labelled 24 x 36 in, 16 x 20 in, 11 x 14 in and 8 x 10 in.
  • Page 1 of the Letter PDF and page 1 of the A4 PDF, each showing a Chladni print with a white margin, with notes on print settings.
  • Four boxes for the PNG zip, Letter PDF, A4 PDF and Start Here PDF, with file sizes, and a note that no frame or print is shipped.

Chladni Figures Wall Art

A square plate that vibrates settles into still lines and moving areas, and these prints show four of those patterns as Chladni figures. You get four separate prints that hang as a 2 x 2 grid, plus a fifth sheet that holds the four plates together as a poster. Each plate has its own pair of numbers, n and m, which are 3 and 5, 2 and 7, 4 and 9, and 5 and 8. Pale cream lines mark where the formula is near zero, which is where sand collects on a real plate. The background is near-black, framed by a cream border, and each print carries a short caption. The zip has 25 PNG files in five frame ratios, and two PDFs suit a home printer.

$4.99 on Etsy

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PNG files with a 300 dpi tag, plus Letter and A4 PDFs. A script read the PNG pixel sizes and compared the art with the equations. No test print or Acrobat check yet.

Instant download from Etsy · nothing shipped

What's included

  • Chladni-Figures-Wall-Art-PNG-5-Ratios.zip, 25 PNG files: 5 prints (4 separate prints and 1 grid sheet) in 5 ratios, with the license and font license text files
  • Chladni-Figures-Wall-Art-Print-at-Home-Letter.pdf, 6 pages: 5 of art, then the license
  • Chladni-Figures-Wall-Art-Print-at-Home-A4.pdf, 6 pages: 5 of art, then the license
  • Start-Here-Chladni-Figures-Wall-Art.pdf, which file fits which frame, print settings, license

How it works

  1. Four separate portrait prints at left and a larger grid sheet at right that holds the same four plates on one page.
    Four prints, one grid Four separate plate prints, and a fifth grid sheet that holds all four on one page.
  2. A large close-up of cream curved lines on a dark plate, next to a small print with a red square marking the 1,700 pixel crop.
    Real pixels A small square cut from the 24 x 36 in file shows smooth cream lines on the dark plate.
  3. A blue and rust sign map of the n = 3, m = 5 pattern beside the finished print, with the formula and the list of four plates.
    How each pattern is computed The standing-wave formula, the sign of z in blue and rust, and the pale band near zero kept in the print.
  4. Five cream prints in different proportions labelled 2:3, 3:4, 4:5, 11:14 and ISO A with their pixel sizes at 300 dpi.
    Five ratios The art is laid out again for 2:3, 3:4, 4:5, 11:14 and ISO A, so nothing is stretched.
  5. Page 1 of the Letter PDF and page 1 of the A4 PDF, each showing a Chladni print with a white margin, with notes on print settings.
    For a home printer A Letter PDF and an A4 PDF with the art 0.4 in clear of the page edge.

Compatibility and file formats

PNG files with a 300 dpi tag and indexed color, so that one zip stays under 20 MB. A script read the pixel size of each PNG and compared the art with the equations. The PDFs were drawn with poppler only. Opening the files in Adobe Acrobat Reader or Preview has not been recorded yet, and neither has a test print at home or at a print shop. The zip needs a computer or an app that can open zip files.

Instant download from Etsy · nothing shipped.

Video

Questions

Are these photos of real sand on a plate?

No. They are computed from a formula that is the usual approximation for a square plate. A real plate has its own small differences.

How do I hang them as a grid?

Print the 4 separate files at the same size in matching frames. If you want one poster, use the file with Grid in its name.

Which plate is which?

Each file name gives n and m, for example Chladni-n3-m5, and the same numbers are printed under the plate.

The frames and walls in the listing images are drawn by code, and no frame or print is shipped. Colors on paper depend on your printer and paper, and no test print has been recorded. License: for your personal use only. No resale or sharing of this file. AI helped write the listing text, the how-to text and the code that builds these files. The art is computed by that code from the equations named here, and no image generator was used. Scripts tested: the pixel size and 300 dpi tag of each PNG, the size of the zip, and that the pale lines on each PNG and PDF page match the formula when a separate script works it out again. No person is claimed to have checked it unless stated here.