As you change the zoom level in a view, snap increments change. When you zoom in, snap increments are smaller. When you zoom out, snap increments are larger. Define snap increments for dimension lengths and angles to suit your needs.
The first increments listed are used when you are zoomed out. The last increments listed are used when you are zoomed in. There is no limit to the number of increments you can specify.
Example for Angular dimension snap increments: 90°, 45º, 15º, 5º, 1º