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Important: Please read this before using any of our software products. T3RRA Operators Manual © 2026 T3RRA Notice of Rights No part of this publication may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language o...

Mark Twain and Will Rogers shared the sentiment, “Buy land, they’re not making it anymore”. We cannot help you buy land or make more of it, but we can help you improve the land you already have. This manual explains how to operate our software for in-cab landf...

Compatible hardware and display T3RRA in-cab software runs on any 64-bit Windows 11 PC, whether a desktop computer, laptop or tablet PC. A keyboard and mouse can be used, but the software is designed primarily for a touchscreen interface. For most installation...

Accurate machine control relies on the entire landforming system, not on T3RRA software alone. T3RRA software combines terrain design, guidance and implementation with the machine-control capabilities of John Deere iGrade™. To achieve the expected accuracy, th...

John Deere iGrade™ is integral to the T3RRA machine-control solution. T3RRA software provides terrain design, guidance and implementation functionality; John Deere iGrade™ performs the hydraulic machine control needed to operate the implement. Reliable T3RRA m...

Starting T3RRA Software Most installations are configured to start T3RRA software automatically when the tablet PC boots. If the software does not start automatically and you want to enable this functionality, follow the configuration instructions in the accom...

T3RRA releases regular software updates to improve reliability, add features and enhance compatibility with supported hardware. Keeping the software up to date provides access to the latest improvements and bug fixes. Checking for updates At startup, T3RRA sof...

Transitioning from T3RRA Cutta V1 to T3RRA Cutta V2 has been designed to be as straightforward as possible. The familiar wizard-based workflow has been retained, along with the core operating principles used throughout V1. While the user interface has been ref...

As-Applied: The field's current state as work progresses, also called As-Built. As earthworks are completed, the As-Applied surface typically changes from matching the original surface to matching the design surface. Backslope (Batter): The sloping sides that ...

The Main Page appears when T3RRA software opens and when you select New Project within the Wizard. Use the Main Page to access display settings, software configuration, the Operator’s Manual and T3RRA support tools. Main Page with display, settings, manual and...

T3RRA software uses the T3RRA Project File ( .tci) as its native project format. Data from supported external file formats can be imported and converted for use within a T3RRA project. To import external data, select Import from the Main Page and choose the ap...

The native project format for T3RRA software is the T3RRA Project File ( .tci). Before using data from a supported external source in a project, bring it into the project with Import. T3RRA Design offers additional import and conversion capabilities for prepar...

Load proj. button Use Load proj. to open an existing T3RRA project ( .tci) from the standard project structure, another location on the tablet PC, or external storage such as a USB drive. Start by selecting Load proj. on the Main Page. Loading from Grower/Farm...

Saving a project retains its survey, design and other associated data so you can close T3RRA software and resume work later. Although T3RRA software includes an automatic backup system, regularly saving your project is strongly recommended to minimise the risk...

Machine tab settings. Look ahead delay time To control blade height, the software receives an elevation from iGrade™, processes it, then returns a control signal to iGrade™. Although this control loop is quick, its delay can cause inaccurate implementation in ...

Project tab in Settings. Changes in the Project tab do not apply to a project that is already open when you change the settings. Surface pixel size Surface Pixel Size: The default of 2 meters (~6 feet) is adequate for most purposes. Consider 1 meter or 0.5 met...

Blade shift increment Blade Shift Increment sets the height adjustment applied by the up/down elevation adjustment buttons in the implementation wizard step. Limits tab with Blade Shift Increment, Static Blade Limit and Dynamic Blade Limit controls; As Applied...

GPS connection settings GPS settings with Raw GPS Data displayed. GPS displays the COM port used to communicate with the GPS. Select the correct port from the drop down menu. Baud (Rate) sets the communication speed between the software and GPS. It should matc...