Paper & writing
Circle-versus-ellipse scaling check
Compare 25, 50 and 75 mm labeled circles left to right and top to bottom to spot unequal printed axes.
US Letter · 1 PDF page · Print PDF
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Circle-versus-ellipse scaling check / LETTER
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Scale, fold, trim and front/back alignment are different checks. Follow the procedure for this sheet.
Printing, file details and help
About this file
A printing diagnostic, not a certified measuring instrument.
The labels give diameters. Measure left to right and top to bottom through each center; unequal axes indicate distortion.
From file to finished page
- Choose the paper size loaded in your printer and open the matching PDF.
- Print at actual size when dimensions matter. Check a known dimension; this edition has no labeled scale-reference line.
- Use the selected sheet’s printed guides and labels for the task. Choose the page or layout that matches the work instead of printing every variant.
- Keep a master copy and work on a duplicate when annotations or repeated use are required.
Printing and use notes
Make one trial on ordinary paper before using special stock or preparing a batch. No physical test result is claimed.
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Circle-versus-ellipse scaling check (2 files)
- US Letter — print PDF · 1 page
Page numbers and contents
- Page 1 — Circle-versus-ellipse scaling check
- A4 — print PDF · 1 page
Page numbers and contents
- Page 1 — Circle-versus-ellipse scaling check