How can you prevent a specific dimension from changing when editing other dimensions in a model?

To prevent a specific dimension from changing when editing other dimensions in a Solid Edge model, selecting the lock icon in the dimension value box is the correct approach. Locking a dimension essentially fixes its value, ensuring that it remains constant even when other related dimensions are modified.

This locking feature is particularly useful in a design environment where you may need to maintain certain critical measurements while allowing flexibility in other areas of the model. By locking the desired dimension, you can successfully manipulate other parameters without unintentionally affecting the locked dimension.

Other methods, like using the fix command or changing the dimension to a reference dimension, may have different purposes or effects on the model. Using the fix command generally constrains the dimension but might not offer the same clear visibility or ease of adjustment as locking does. Altering a dimension to a reference dimension denotes that it does not directly control geometry, which might not be applicable if the intention is to keep the dimension active but unchanged. Grouping dimensions primarily serves organizational aspects, rather than ensuring specific dimensions remain unchanged when modifications occur. Thus, selecting the lock icon is the most straightforward and effective method for this task.