Support

Get a clearer pattern

Use a high-contrast image with a simple subject. Increase contrast or frame the subject more closely, then tap Generate pattern. Light or low-detail images can produce fewer connections than the requested maximum.

Print the correct size

Select A4 or US Letter in Files, create export files, then share the PDF to your preferred printing or file app. Print at 100% / Actual Size and disable Fit to page. The calibration line must measure 50 mm. Trim the tile borders and assemble by row and column. Pin 1 is at the top; numbers run clockwise.

Resume safely

Make saves each completed connection. Undo corrects an accidental tap. Regenerating a changed route resets progress after confirmation. Export important work before deleting a project or uninstalling. The .threadarc export is an archival JSON copy; this version does not import it.

Contact support

Email maga40@naver.com. Include the app version, device, OS version and the action that failed. Photos are optional; do not send private material unnecessarily.