Drawing Springs (Mechanical Toolkit)

This Tech Tip explains how to draw a spring using the Draw Spring function in the Mechanical Toolkit.

Setting the defaults:
Toolkit Menu › Mechanical...› Setup The Mechanical Toolkit - Setup dialogs are used to modify the Mechanical Toolkit's default settings, and customise it to your preferences.



Configuration file path This tells the Mechanical Toolkit where to store it's settings data. The mechanical toolkit will not work correctly if this file has not been specified. AllyCAD is supplied with a standard file "ISO Mechspecs.ini", which contains settings and data for using the Mechanical Toolkit with the Metric system. This file is situated in your CAD user directory.

If you wish to switch to an alternate configuration file, you can browse for it by clicking on the "browse" button.

AllyCAD is now supplied with one alternate configuration file, "ANSI Mechspecs.ini", which contains settings and data for American fasteners.
Solid Line Type Specify the line type and pen colour that will be used by the mechanical toolkit to draw Solid lines.
Hidden Line Type Specify the line type and pen colour that will be used by the mechanical toolkit to draw Hidden lines.
Centre Line Type Specify the Line type and pen colour that will be used by the mechanical toolkit to draw Centre lines.
Annotation Setup... Press this button to display the Annotation Setup Dialog.


Welds Symbol File Specify the AllyCAD symbol file that will be used to draw the weld symbols. This file must be specified before you can draw welds. A default symbol file containing weld symbols according to the South African Steel Construction Handbook is supplied in the Symbols directory.
File Open button Press the browse button for an alternative weld symbol file.
Weld Annotation Layer Name This is the name of the layer that the weld annotations will be drawn on. If no such layer exists in your drawing, it will be created when you draw a weld annotation. See Welds for more information.
Tolerance Annotation Layer Name This is the name of the layer that the geometric tolerance annotations will be drawn on. If no such layer exists in your drawing, it will be created when you draw a tolerance annotation. See Tolerance for more information.
Surface Finish Annotation Layer Name This is the name of the layer that the surface finish annotations will be drawn on. If no such layer exists in your drawing, it will be created when you draw a weld annotation. See Surface Finish for further information
Symbol scale factor Use this value to adjust the relative scale with which the annotation symbols are drawn.
Text Size Specify the text size in points for the annotation text.
Arrow Length Specify the length of the arrow head in the weld annotation.
Arrow Width Specify the width of the arrow head in the weld annotation.


Drawing Springs
Toolkit Menu › Mechanical...› Components › Draw Springs


Springs list box Use this list box to select a spring definition.
Add button Press this button to Add a new spring. The new spring's parameters will be copied from the currently selected link.
Delete button Press this button to delete the currently selected spring.
Dimensions Edit the dimensions of the spring as indicated by the diagram.
Draw as: Indicate whether the spring must be drawn using the hidden or solid line type as specified in the Mechanical Toolkit - Setup dialog.
OK button Press this button to draw the active spring.


Select a pre-defined spring from the drop-down list, or fill in the relevant information and Press OK.

You may add your own spring definitions by clicking on the "Add" button, and then entering the relevant data. The spring definition will then be saved when you click on OK, or select another spring definition from the list.

Warning: If you modify an existing spring definition, you will be asked to save it. Select "No" to avoid changing the original spring definition.

AllyCAD will prompt:

Indicate the position of the Spring side view (auto-align)

Indicate where the point where the centre of the one end of the spring must be positioned.

If you have checked the "Autoalign" check box in the Spring dialog, then the spring will be rotated to align with the nearest object, otherwise you will be prompted for a rotation.


The side view of the spring will be drawn.

AllyCAD will prompt:

Indicate Spring center fro plan view

Cursor hold will be active at this point, allowing you to specify a position for the plan view of the spring, that is aligned with the axis of the spring side view.

AllyCAD will prompt:

Enter a point on the Spring plan view center line for rotation


The side view and plan view of the spring are drawn.

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