Creating 3D threads
You can create threaded holes, insert threaded cylinders (used often as threaded ends of shafts) or create a thread at an outer cylindrical surface. You can select threads according to ISO (metric threads), according to Unified National Screw Threads (ANSI), or pipe threads ISO 228.
Threads are properly recognized in 3D space, interferences are correctly checked and if exported to 2D drawing, sections or axial views contain correctly displayed threads. Method of 2D threads creation can be configured. If a thread exported from 3D is dimensioned in 2D (using thread dimensions), default dimension text contains correct thread attributes (like M10, M10x1…).
This section of the tutorial shows you creation of a thread in the part used in the assembly example.
For more information, see Threads.
Definition of a threaded hole
Selecting a thread
Insertion of a tool creating threaded hole
2D drawing in 3D, creating 3D sections
In 3D, you can draw a profile further used for extrusion or rotation to create a new solid. Such a solid is pre-inserted into 3D space according to profile’s location. This method can be, for instance, used for creation of a solid used as a section tool (like in this example).
You can select 2D drawing in 3D first. Then draw a 3D profile and finish 2D drawing. Select a method of solid creation (extrusion, rotation…). Otherwise, you can select, for instance, a profile extrusion. Apart of working in 2D drawing module, you can draw the desired profile in selected drawing plane in 3D (this is used here).
For more information, see 2D Drawing in 3D.
Selecting a drawing plane
Location projected from 3D into the drawing plane
2D was switched to “Ortho” mode. Outline of the section tool is created right according to an existing 3D solid. To define profile’s location, use the projection of 3D points – here is the projection of a circular edge center (intersection of axis of the hole and the drawing plane, more exactly). The profile is created as a multi-line and trimmed with the function creating a corner.
Drawing a profile
Finishing a profile
Inserting a new solid extruded from 2D profile
Section tool definition
Selecting a section tool
Selecting solids to be sectioned
Sectioned solid
The thread was redrawn with the function “precise rendering”. Optionally, you can turn on drawing of the thread helix at threaded surfaces during the precise rendering.
2D drawing from 3D containing sections and threads
If a 2D drawing is created from 3D views with threads, the threaded surfaces are redrawn according to the current configuration. The configuration is available in the 3D export dialogue window. This example shows 2D creation of all outer or inner threads’ diameters according to ISO standards.
Active 3D sections are exported into 2D as cut solids. If the particular export is inserted into a list of exports and if the 2D creation is repeated, the corresponding sections are turned on or off the same way as they were switched during the first export creation.
3D view export definition
Front, top and left views were exported separately. Before the left view export, the section was switched off. The exported views are positioned at intersections of construction lines in 2D drawing area.
Positioning the created view
Hatching the sections
Hatch boundary can be detected by cursor or automatically, if you move cursor over a closed area. Optionally, detection of section boundary can be selected. If the section contains multiple planes, it may be necessary to select some of them separately.
If the hatch boundary is defined, you can select hatch pattern or single hatches under angle and at a distance. Moving sliders in hatch style panel, you can change hatches style dynamically before they are finally created.
Creation of axes
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