How to Plot 1:1 in AutoCAD
For a typical millimetre-based AutoCAD model, the safest Layout workflow for 1:1 is simple: keep the model full size, set the viewport to 1:1, keep the Layout output at 1:1, then verify the PDF at 100%.
Metric Scales collects practical CAD plotting guidance for this topic within Scale & Viewports. Use these articles for setup, verification, troubleshooting and reliable final output.
For a typical millimetre-based AutoCAD model, the safest Layout workflow for 1:1 is simple: keep the model full size, set the viewport to 1:1, keep the Layout output at 1:1, then verify the PDF at 100%.
For a typical millimetre-based AutoCAD model, the safest Layout workflow for 1:2 is simple: keep the model full size, set the viewport to 1:2, keep the Layout output at 1:1, then verify the PDF at 100%.
For a typical millimetre-based AutoCAD model, the safest Layout workflow for 1:5 is simple: keep the model full size, set the viewport to 1:5, keep the Layout output at 1:1, then verify the PDF at 100%.
For a typical millimetre-based AutoCAD model, the safest Layout workflow for 1:10 is simple: keep the model full size, set the viewport to 1:10, keep the Layout output at 1:1, then verify the PDF at 100%.
For a typical millimetre-based AutoCAD model, the safest Layout workflow for 1:20 is simple: keep the model full size, set the viewport to 1:20, keep the Layout output at 1:1, then verify the PDF at 100%.
For a typical millimetre-based AutoCAD model, the safest Layout workflow for 1:25 is simple: keep the model full size, set the viewport to 1:25, keep the Layout output at 1:1, then verify the PDF at 100%.
For a typical millimetre-based AutoCAD model, the safest Layout workflow for 1:50 is simple: keep the model full size, set the viewport to 1:50, keep the Layout output at 1:1, then verify the PDF at 100%.
For a typical millimetre-based AutoCAD model, the safest Layout workflow for 1:100 is simple: keep the model full size, set the viewport to 1:100, keep the Layout output at 1:1, then verify the PDF at 100%.
For a typical millimetre-based AutoCAD model, the safest Layout workflow for 1:200 is simple: keep the model full size, set the viewport to 1:200, keep the Layout output at 1:1, then verify the PDF at 100%.