MetaCut Utilities

MCU works directly with your toolpaths, using the same files you send to your CNC machine. MCU doesn't require any tedious setup, and most styles of toolpath are automatically recognized as they open.

Although it would be impossible to describe everything you can do with MCU, a short list would include functions such as: graphical editing, verification, file and entity analysis, backplotting, and graphical file comparison, advanced wizards for restarting, inserting additional toolchanges and surface comparisons, up to 5-axis backplot simulation, viewing of STL files and more.

Each feature of MCU is arguably the best in class, but it's not the individual features that provide the real power... it's the way they all work seamlessly together, all at the same time, without any special effort from the user.

And while it may sound too good to be true, MCU manages to do all of this without sacrificing ease of use or speed.

Because MCU redefines what you can do, and how you can work with your CNC files, there just isn't a good way to describe it with words.

No other software available at any price provides the wealth of useful tools, information and functionality for people working in the CNC industry. MCU is not a CAM system, it's a collection of powerful utilities for machinists and anyone working with CNC machines and toolpaths.

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Multiple "active" views into the CNC file.

Each view (graphic, edit, and tree) is actively linked with each of the others to provide more information together than would be possible alone. A brief description of each of the views follows.

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Grafische Ansicht:
A 3D dynamic backplot drawing of the CNC file.

  • Zoom, rotate, pan
  • Pick entities and chains of entities
  • Dynamic forward and reverse backplotting (backplot as you scroll)

Edit View:
A text view of the CNC file, which can be edited and saved.

  • Renumber
  • Insert/delete spaces
  • Undo/redo typing
  • Find/replace text
  • Selection of lines by range
  • Automatic detection of file type.
    Open a CNC file, and the standard MCU interface opens. Open any other type of file, and the interface changes to a standard text editor! MCU was designed to be the one editor that works for all your editing needs.

Tree View:
The CNC file is sorted by tool call, and further sorted by paths within each tool.

  • Change visibility in the graphics area by selecting tools in the tree
  • Select lines in the edit view by selecting tools in the tree view
  • Assign tool geometry and color

The Toolbox

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The toolbox provides detailed information about the CNC file and also contains controls to work with the file.

General information such as: the physical size, the low point and high point, the number and type of entities and the cutting time length. This information is available for the entire file, a single tool or even just two entities.

Detailed geometric information This information is automatically updated as entities are selected from the edit view or the graphics screen. Also displays the current feed and speed for any selected entity.

Graphical Edit

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Imagine visually checking your editing with the push of a button.

and easily returning to any revision you made along the way

then visually comparing your changes from the original file to any particular revision.

MCU's Graphical Edit option will make you wonder how you ever edited a CNC file without these powerful tools. You have to see this option in action to understand the full power.

Graphical refresh When you begin to edit a file, the refresh button lights to let you know that there are changes to the file, and that you can make a new revision and see the changes with the push of the button.

Revision history The revision history keeps a list of each revision that is made during a session. You can step through the revisions, or go directly to any particular revision at any time.

Graphical Compare

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The graphical compare feature allows you to SEE the smallest changes between revisions of the same file or even between two different files. And it works with both the backplot and with solid verify models. Graphical compare locks the files into the same 3D space then lets you toggle between the files. If something moves it's different. It's that simple.

Verify (3-axis)

The Verify option works with 3-axis milling type toolpaths to create a 3D solid model of a part based upon the motion of the path and the shape of the tool.

MCU's Verify option provides unbelievable detail in seconds, not hours and the model can be referenced right from the graphics screen! If you see a problem, just click on it, and the line of code that made it is instantly highlighted.

Some of the other standard MCU features include:

  • DNC send and receive (provide by RYM).
  • 3-axis machine Simulation. Dynamically move like the machine tool.
  • STL viewer. View one or many STL files, control color and visibility.
    Import an STL of your part to check it against the verification model.
  • STL spindles and tables. Associate any STL file as a spindle or a table for backplot.
  • Chip volume graph. An interactive graph of the changing chip volume.
  • DXF out. Export any wireframe path as a DXF file. Great for reverse posting.
  • World's easiest and most powerful CNC file interpreter. Most CNC file types are automatically recognized without the need for customization, Including, Fanuc style, Heidenhain, Dynapath, Anilam and more.
  • Visual import customization is available for the few CNC styles that are not automatically recognized.
  • Highly optimized for speed in all areas of the program.
  • Drag and Drop support (NC code, STL files, or text files).
  • Interactive "Quick tours" which use MCU to show you MCU!
  • Multiple view-ports in the graphics view.
  • Toggles for the visibility of tools, endpoints, rapid motions, axis and more.
  • Color coding by entity type.
  • Support for Fanuc style NURBS.
  • Support  for non-interpolated rapids ("dog-leg" rapids).

MCU Light

MCU Light is exactly like MCU but it does NOT include the following MCU features:

MCU Products

All MCU Options require "MCU".

STL Pack

The STL Pack adds the ability to use:

Wizard Pack

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The Wizard Pack adds 3 powerful wizards to MCU.

  • Restart Wizard When a tool breaks, the restart wizard will have you machining again in minutes with a new toolpath that includes only the remaining code needed to complete the machining of your part. It automatically checks for crashes on remaining stock and allows you to dynamically create custom entry motions in the restart area.
  • Tool Wear Wizard On long toolpaths, the tool may wear out before the toolpath is finished. The MCU Tool Wear wizard automates the process of inserting additional toolchanges while automatically checking for crashes with remaining stock and allowing you to create custom entry motions.
  • Surface Compare Wizard The surface compare wizard provides an easy way to directly compare the surface finish of different machining strategies. Create a verification model on a small area of a toolpath, then select a different file, and MCU automatically creates a new verification model in the same area and at the same resolution on the second toolpath. Selecting the graphical compare button in the graphics area will toggle between the two models for a direct comparison of the finish.


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The Merge option temporarily combines multiple CNC files to allow analysis and verification of the files as if they were a single file. The files can be selected all at once with { File | Merge } or sequentially using { File | Append }

This option is especially useful to anyone who creates separate files for each of the operations needed to make a complete part. Merging is a powerful, faster, and easy way to verify the results of machining with sequential but separate files.

4-Axis Simulation

Simulate the motion of your 4-Axis machine during backplot. Load an STL file of the finished part to help visualize, understand and check complex indexed or simultaneous motions. Dynamically scroll through your file, or run in "Play" mode.

Exceptional performance, incredible value for 4-axis mills.

5-Axis Simulation

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Simulate the motion of your 5-Axis machine during backplot. Load an STL file of the finished part to help visualize, understand and check complex indexed or simultaneous motions. Dynamically scroll through your file, or run in "Play" mode.

Exceptional performance and incredible value for 5-Axis visualization and simulation.

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