How to Add Tolerance in Dimension AutoCAD: Step-by-Step Guide

To add tolerance in dimension AutoCAD, open the Dimension Style Manager, select your dimension style, and click Modify. Then go to the Tolerances tab, enable tolerance display, and set the upper and lower tolerance values or limits as needed.

Syntax

In AutoCAD, adding tolerance to dimensions is done through the Dimension Style Manager. The key steps involve:

• DIMSTYLE: Command to open Dimension Style Manager.
• Select a dimension style and click Modify.
• Navigate to the Tolerances tab.
• Enable tolerance display by choosing a tolerance type (e.g., Symmetric, Deviation, Limits).
• Set upper and lower tolerance values or limits.
• Apply changes and use the dimension style in your drawing.

autocad command

DIMSTYLE

Output

Opens the Dimension Style Manager dialog box.

Example

This example shows how to add symmetric tolerance of ±0.05 to a linear dimension:

autocad steps

1. Type <code>DIMSTYLE</code> in the command line and press Enter.
2. Select your current dimension style and click <code>Modify</code>.
3. Go to the <code>Tolerances</code> tab.
4. Set <code>Tolerance Display</code> to <code>Symmetric</code>.
5. Enter <code>0.05</code> in the <code>Upper Value</code> box (the lower value will auto-fill as -0.05).
6. Click <code>OK</code> and then <code>Close</code>.
7. Apply the dimension style to your dimensions to see the tolerance displayed.

Output

Dimensions now show values like 10.00 ±0.05 indicating tolerance.

Common Pitfalls

Common mistakes when adding tolerance in AutoCAD dimensions include:

• Not enabling tolerance display in the dimension style, so tolerances do not appear.
• Setting tolerance values but forgetting to apply the modified dimension style to the dimensions.
• Choosing the wrong tolerance type (e.g., Limits instead of Symmetric) which changes how tolerances display.
• Overlapping text if tolerance values are too large or dimension scale is too small.

Always preview your dimension style changes before applying.

autocad steps

Wrong way:
1. Modify dimension style but leave Tolerance Display set to <code>None</code>.
2. Apply style and see no tolerance shown.

Right way:
1. Set Tolerance Display to <code>Symmetric</code> or other desired type.
2. Enter tolerance values.
3. Apply style to dimensions.

Output

Tolerance values appear correctly on dimensions.

Quick Reference

Setting	Description
DIMSTYLE	Command to open Dimension Style Manager
Tolerance Display	Choose None, Symmetric, Deviation, Limits, or Basic
Upper Value	Set upper tolerance value
Lower Value	Set lower tolerance value (auto-fills for Symmetric)
Apply Style	Apply modified style to dimensions to show tolerances

Key Takeaways

Use the DIMSTYLE command to access and modify dimension styles for tolerance settings.

Enable tolerance display and choose the correct tolerance type to show tolerances on dimensions.

Set upper and lower tolerance values carefully to reflect design requirements.

Always apply the modified dimension style to your dimensions to see tolerance effects.

Preview dimension styles to avoid overlapping text or display issues.