by APEC·Workflow
Illustrative cover generated by AnyPlugins — no product screenshot available.
Stands out in the superhive library for pairing measurement with exact scaling that respects Blender's own transform orientation and pivot settings.
Dimensions Ruler + Precision Scaler is a Blender add-on from APEC that pairs a simple on-screen ruler with a precise scaling tool. The ruler draws lines interactively using a background calculation process, and it stays active while you carry out modeling operations. Its controls live under a DR panel tab, which you can rename in the add-on preferences.
The Precision Scaler works from a selection of two vertices or a single edge. You get the distance between the points, set the value you want, and scale, all while the tool uses your current Blender Transform Orientation and Transform Pivot Point. Two object origins can also serve as the pair of points when getting or setting a distance.
Recent updates extend the ruler to curve, surface, and font objects alongside multiple selected meshes, add options to disable individual X, Y, or Z lines, and let you round the decimal places shown in millimeters. Experimental features cover drawing dimensions for each selected object and calculating sizes for objects with modifiers, with a safeguard against freezing when a mesh exceeds a vertex threshold. A shortcut can be assigned to toggle the ruler on and off.
Dimensions Ruler + Precision Scaler is best for blender users who need on-screen measurements and exact resizing while modeling.
Dimensions Ruler + Precision Scaler is completely free to download and use.
Dimensions Ruler + Precision Scaler runs on Blender versions 3.6 through 5.1, covering a wide span of recent releases. The add-on is distributed under the GPL license. Its panel appears under the DR tab, which you can rename in the add-on preferences to suit your layout. Keep in mind the ruler cannot be enabled by default in the startup file because of how Blender modal operators work, and to avoid FPS loss it always loads in a disabled state when you start or load a scene.
Dimensions Ruler + Precision Scaler resizes a selection in four steps: select two vertices or one edge, get the distance between the points, set the desired distance, then scale. The tool uses your current Blender Transform Orientation and Transform Pivot Point during the operation. You can also use two object origins as the two points when getting or setting a distance. An auto get/set option lets you skip the GET and SET buttons if you prefer a quicker path.
Dimensions Ruler + Precision Scaler supports multiple selected mesh objects, and since update 1.0.4 it also works with curve, surface, and font object types. The ruler draws its lines interactively through a background calculation process, and you can disable the individual X, Y, or Z lines as needed. An experimental section adds the ability to draw dimensions for each selected object, along with size calculation for objects that carry modifiers.
Dimensions Ruler + Precision Scaler is listed as free here, and the add-on is distributed under the GPL license. Licensing terms can change over time, so check the developer's page for the current details before you rely on them. Documentation is available as well, which is a useful reference when you set up the ruler and the scaler for the first time and want to confirm how each part behaves.
Dimensions Ruler + Precision Scaler lets you assign a shortcut to enable and disable the ruler, a feature added in update 1.0.4. You set it in the add-on preferences by right-clicking to assign the shortcut. To prevent FPS loss when starting or loading a scene, the ruler always begins in a disabled state, so the shortcut is the quickest way to switch it back on while you work.
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