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MESYS Calculation Software

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General usage

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To run a calculation first the data on all pages is introduced. Then press the button all_img2or F5 to run the calculation. After all data is defined the calculation can be run from each page. So it is easy to make parameter variations.

There are some special buttons used in the user interface, which are explained in the following table:




This plus button shows a dialog with additional inputs. Some of these inputs need to be defined, some are just optional.


This conversion button allows the conversion from other types of input. For example, the radial clearance can be converted from an axial clearance


This proposal button provides a suggestion for an input by the software


The unit system for the input and output can be selected on the menu ‘Extras->Unit system’ either as metric or US units. US units are not fully supported in the shaft calculation yet, only part of the inputs and outputs will be changed yet.

Using the context menu for the units of input fields, the current unit can be changed. This setting is saved for future restarts of the software.


Pressing the right mouse button on an input field a window for an input of a formula is shown. This can be used for quick calculations.



The software is available in English, German, French, Spanish, Chinese and Korean language. The language can also be selected in menu ‘Extras’.

All graphics can be printed or exported as PNG file using the context menu (right mouse button) in the graphic window. For the export the size of the graphic can be specified.

all_img8   all_img9

In the graphic windows of the software, there are different buttons for the view manipulation in 3D, such as the zoom-in, zoom-out and fit-to-window functions and also it is possible to select the point of view from different planes. The 3D model can be dragged with the mouse by holding down Shift-key as well as zoomed in and out by holding down the Ctrl-key. A 3D-mouse is supported in 3D-graphics.

Any diagram of the software can be edited by right clicking on it and selecting the ‘Diagram options’ at the context menu.

Both the units and bounds for the axes can be set. Moreover, if any of the graphs is of no interest, it can be disabled with the checkboxes. The color and line style of each curve can be changed too.


Units and precision of numbers in tables can be changed by right click on the header of a column.