Spiro

Spiro

Win32 and 64, English

JTB World Inc.
This app can be used with Autodesk® AutoCAD® to create Spirograph (TM) - like patterns. Turn AutoCAD into an educational toy that will provide hours of fun for the whole family!

General Usage Instructions

Once loaded, the SPI command can be used to create patterns, first by defining the outer circle of the pattern: Select center point: Radius of outer circle: Then the inner circle which "rolls" around the outer circle: Radius of smaller circle: Followed by the distance of the pen from the center of this smaller circle: Pen distance from center of smaller circle: The values you use will be remembered to show a preview of this shape when you create your next pattern. The "resolution" of the polyline generated for a spiro is set as "1" while drawing temporary patterns during a jig and "10" for the final, perfected spiro. These default values can be adjusted using the SPISEGS command, which will prompt for each value, in turn: Enter segment resolution for jigged spiro : Enter segment resolution for perfected spiro : These values will not be saved anywhere, and so will return to their default values during each subsequent editing session.

Screenshots

Commands

Ribbon/Toolbar Icon Command Command Description

SPISEGS

Change segment resolution for jigged spiro and perfected spiro. These default values can be adjusted using the SPISEGS command, which will prompt for each value, in turn: Enter segment resolution for jigged spiro <1>: Enter segment resolution for perfected spiro <10>:

SPI

Creates a hypotrochoid pattern based on the specified outer circle, inner circle and pen distance.

Installation/Uninstallation

The installer that ran when you downloaded this app/plug-in from Autodesk App Store will start installing the app/plug-in. OR, simply double-click the downloaded installer to install the app/plugin. You may need to restart the Autodesk product to activate the app/plug-in.

To uninstall this plug-in, exit the Autodesk product if you are currently running it, simply rerun the installer, and select the "Uninstall" button. OR

On Windows 10 Version 1703 or later press Windows+I on the keyboard to access Settings or click the lower-left Start button on the desktop to expand Start Menu, and then select Settings in it. Click on Apps. On Windows 7/8/8.1/10 (older than Version 1703) click Control Panel > Programs > Programs and Features or Control Panel > Add. On Windows XP click Control Panel > Programs > Remove Programs.

Additional Information

The app was originally published as an ADN Plugin of the Month. See also our app page.

Known Issues

Contact

Company Name: JTB World Inc.
Support Contact: info@jtbworld.com

Author/Company Information

JTB World Inc.

Support Information

For support visit our Contact page.

Version History

Version Number Version Description

1.2.0

Added AutoCAD 2020 support. No change in version number.

1.2

Fixed a bug that could cause AutoCAD to crash

Fixed a bug that made the generated spiros to not be seen in certain visual styles

Added support for AutoCAD 2016

Added digital signatures on DLL and MSI files

1.1.1

Added support to AutoCAD 2015 (No change in version number)

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