How to Draw Line in Millimeters in Autocad

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How to set up page size and scale representations for plotting in AutoCAD

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Issue:

This article describes how to correctly prepare the file for plotting in AutoCAD. In particular:

• How to manage drawing settings and scale when plotting directly from model space.
• How to change the page size and how to manage scale representations in paper space.

Solution:

Generally, it's recommended to use the model space to draw in actual size (or in 1:1 scale). Thus, start by verifying what the current drawing units are:

1. If needed, switch to the Model tab.
2. Type -DWGUNITS and press Enter.

The command line will show the following lines:

Command: -DWGUNITS  Drawing units:   1. Inches   2. Feet   3. Millimeters   4. Centimeters   5. Decimeters   6. Meters Unit for length <4>:

A number corresponding to the current units will be shown within angle brackets (<>) on the Unit for length line. In the previous example, the drawing is in centimeters.

Plotting from model space

1. If needed, switch to the Model tab.
2. Go to Application Menu > Print > Plot (default shortcut: Ctrl+P) to open the Plot dialogue window.
3. In the Printer/plotter section, select a plotter from the drop-down list.
4. Set the other plot options as needed.
   • Page size.
   • Drawing orientation.
   • Plot style table.
   • Plot offset.
   • Other plot options.
5. In the Plot area section, choose the desired option from the drop-down list.
   • If Window has been chosen, proceed with selecting the plot window from the model space.
6. In the Plot scale section, deselect Fit to paper.
7. Select the plot scale by doing either of the following procedures.
   • Choose one of the default scales from the Scale drop-down menu.
   • Enter the desired values in the two text boxes, where the top one describes the paper units and the bottom one describes the model units.

Example: To plot in 1:100 scale when the drawing is in centimeters, enter 10 in the top box (10 mm = 1 cm) and 100 in the bottom one (100 units = 100 cm = 1 m).

8. Click OK.

Plotting from paper space

1. Right-click on the Model tab and select New layout.
2. Switch to the newly created layout by clicking the layout tab.
3. TypePAGESETUP and press Enter.
4. In the Page Setup Manager window, verify that the current layout name is highlighted and click Modify.
5. In the Page Setup window, in the Printer/plotter section, select a plotter from the drop-down list.
6. Set the other plot options as needed.
   • Page size.
   • Drawing orientation.
   • Plot style table.
   • Other plot options.
7. In the Plot area section, choose Layout from the drop-down list.
8. The scale specified in the Plot scale section will determine which will be the layout space units employed.
   • Usually, it's recommended to leave the value in the bottom box on 1, and enter the desired value in the top box. If the drop-down list is set on mm, entering 1 will set the layout to use millimeters, entering 10 will set it to centimeters, etc.

9. Click OK.
10. Click Close.
11. If needed, create a viewport (see To Create a New Layout Viewport) and select it, or select an existing one.
12. Type PROP and press Enter.
13. Select the viewport scale by doing either of the following procedures.
    • Select an existing scale from the Standard scale option,
    • In the Custom scale option, type the desired ratio between paper space units and model space units.

Example: To set the viewport to a 1:100 scale when the drawing is in centimeters and the layout is set to millimeters, enter 0.1 (ratio between 10 mm in paper space and 100 cm in model space).

14. Press Ctrl+P to bring up the Plot dialogue window,
15. The plot settings shown will be the ones that have been specified on the Page Setup window (steps 5-8).
16. Click OK.

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How to Draw Line in Millimeters in Autocad

Source: https://knowledge.autodesk.com/support/autocad/learn-explore/caas/sfdcarticles/sfdcarticles/How-to-setup-page-size-and-scale-for-plotting-in-AutoCAD.html

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