Free engineering tool

GD&T feature control frame builder

Choose a symbol, enter the tolerance and datum sequence, and copy a transparent PNG for your drawing review. Customize the color, size, and line weight without rebuilding a frame from text boxes.

Symbol
Tolerance zone
Tolerance modifier

Datum references

Leave a datum blank to omit that compartment.

Modifier
Modifier
Modifier

Transparent PNG preview

⌖ | ⌀0.10 Ⓜ | A | B | C

The exported PNG has a transparent background; the checkerboard is preview-only.

How to use the frame builder

  1. Select the geometric characteristic and enter the tolerance.
  2. Choose the tolerance zone and modifiers, then enter datum references. Leave unused datums blank.
  3. Set the color and size, then select Copy PNG.
  4. Paste into a PDF editor that accepts images. If clipboard access is blocked, download the PNG and insert it using the editor’s image tool.

The checkerboard is preview-only; the PNG background is transparent. Use the frame for review notes and proposed changes, and follow your drawing standard and approval process for released requirements.

Read the full frame builder guideCopy individual GD&T symbol PNGsCopy mechanical symbols as text
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