﻿## 0
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).
## 2
Selecting a drawing plane
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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.
## 14
Drawing a profile
## 18
Finishing a profile
## 24
Inserting a new solid extruded from 2D profile
## 30
Section tool definition
## 31
Selecting a section tool
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Selecting solids to be sectioned
## 47
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.
