New in 3D Solid Modeling
Version 22
The 3D Block Editor context tab appears on the ribbon with additional tools for 3D editing, buttons for saving the result and exiting the editing mode. The tab lacks a number of commands that are present in the standard block editor, for example, for working with attributes. However, these commands can still be called from other ribbon tabs, menu, or command line.
If there is no license for the 3D module, editing 3D blocks using standard methods will still be available, but without the ability to use 3D editing commands.
In the drawing explorer, 3D blocks have been moved to a separate section.
The 3DREFEDIT command is used to edit references.

Version 21
The basic tools (Sheet solid, Bend edge, Bend over segment, and Fold by sketch) create standard parts from sheet metal. Folds can be bent and unbent at any time, and corners are handled by a variety of reliefs and bends.
For specific sheet metal parts, there are the Shell and Ruled shell tools, plus additional tools quickly add commonly used sheet metal elements, such as these ones:
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Collars
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Holes
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Plates
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Shutters
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Stamps
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Stiffeners
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Undercuts
The Unbend tool makes flat drawings of 3D sheet metal parts.
Each release of nanoCAD adds new commands. To make it easier to focus on the design at hand, the primary 3D modeling commands are now grouped by mode in the Modeling Modes section of the 3D Tools ribbon:
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Parametric
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Direct
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Sheet
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Meshes
When users switch between modeling types, the ribbon automatically changes the commands displayed to those specific to the selected modeling mode. For example, when a user selects Parametric modeling mode, the ribbon changes to show commands for creating 3D geometry based on parametric sketches.
When the user selects Meshes modeling mode, the commands standard for creating 3D surfaces become available.
Commands that apply to all types of modeling such as, for example: Chamfers and Rounds, Boolean operations, commands of construction geometry, manipulation and others are always visible to a user.
The 3D-tangency constraint joins surface tangents that are more complex than what the existing 3D-merge constraint can handle. It creates tangents between, for example, the following objects:
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Cylinders to planes or cylinders
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Cones to planes
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Spheres to cylinders or planes
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Circular edges to straight or circular edges
3D-tangency constraint:
3D-symmetry constraint: