Perfect Control of CNC Machines - Help Pages and Calculators

Needless to say, CNC technology has greatly increased the productivity of today's machine tools, or that the interfaces, such as Haas' control, make them easier to operate than before. However, something has not changed. Although CNC has placed unprecedented capabilities and precision in front of you, the criterion for determining whether a machinist is qualified is still “whether or not work is completed”. In Haas, the "computer" part of CNC is the essence. In that gray box of the same size, there is valuable information on the practical information and careful configuration, which can help you to complete the work.

Now, we want your attention to focus on the HELP/CALC button. You will find it in the lower right corner of the DISPLAY button group in the middle of the keyboard. Press this button once and you will see a 27-page mini-booklet that briefly lists almost all the features on your machine.

The first page, titled HELP FUNCTION, shows a complete list of all topics and a brief explanation of how to find them. If you look at each topic in order, just use the cursor keys or the handwheel to scroll down. Or, use the alphanumeric keypad to enter the single letter logo of the topic to jump directly to the corresponding page. The title of most topics does not require much explanation. If you later or just need them, you only need to quickly browse to know what information they contain.

In the latest Haas controller (since June 2005), the Help item has become easier to use. The same Help initial page gives an overview of the information, but you can still find topics or words in the Help manual. This is the same as the Help item on the desktop computer.

Press the HELP/CALC button a second time to go directly to the CALCULATOR page. Here, you can see 5 interesting screens that make the machine straight, circular motion, and speed and feed programming easier. Use the PAGE UP and PAGE DOWN keys in the cursor group to access the calculator.

There is a simple math calculator in the upper left corner of each calculator page. The value is entered via the numeric keypad and the WRITE/ENTER key. Use the left and right cursor keys to select the desired function (LOAD, +, -, *, /) so that it is highlighted.

To perform a simple calculation, first highlight the LOAD function, then use the keypad to enter the value and press WRITE/ENTER. Afterwards, highlight the desired mathematical operation (+,-,*,/) and enter the second value via the keyboard. Press WRITE/ENTER to perform this operation. The calculation results will be displayed in the calculator box. If you want to perform multiple operations in order, simply repeat the above process.

In the basic calculator, you can also enter long mathematical equations in the input line, such as 0.25*8/0.25+4-2. When there are multiple steps in a problem, first highlight the LOAD function and then enter the entire equation (0.25*8/0.25+4-2), where the numeric and operator inputs use the numeric keypad. Press WRITE/ENTER after inputting to perform this calculation (=10). The order in which the equations are calculated is to multiply and divide first, and then do the rest of the calculations.

The built-in calculator has the following advantages: It allows you to copy or paste the calculation results directly into the program you are editing, or you can copy or paste it into a dedicated calculator that we will discuss later. You don't need to manually transfer the data. This avoids the risk of re-entering the data and creating errors. We will introduce this in detail later.

In addition to the basic calculator in the upper left corner, this section also has four dedicated calculators to help solve trigonometric, circular, tangential and calculation of velocity and feed problems in the trigonometry rule.

The first page is a triangle calculator. Enter the corner value of your triangle problem. When the input data is enough, the computer will calculate this triangle and display other values. Use the UP and DOWN arrow keys to select where to enter your value. Then use the numeric keypad and the WRITE/ENTER key to enter numerical values. You can overwrite the highlighted text because it is a calculated value. To enter a new value to cover that calculated value, you must clear another entered value. Press SPACE then press ENTER to do this.

If you come across a value that was calculated using the basic calculator, you can use the F3 key to enter the result of the calculation into any highlighted line of the dedicated calculator. You can also use this technique in reverse. Simply press F4 to copy any highlighted value from the dedicated calculator to the base calculator window. Regardless of which operator (LOAD, +, -, *, /) is highlighted, it will be executed at the same time, and then you can use the basic calculator to add, subtract, multiply, and divide at will.

Want to try this copy-paste trick? First switch to EDIT mode (press EDIT) to see what you are doing. Press F3, then the value in the calculator will be displayed on the data entry line on the bottom left of the EDIT page, ready for input into your program.

The next page will bring you a complete circle. Press the PAGE DOWN button and the triangle calculator will be converted to a circle calculator. The work on this page is roughly the same as the previous page, and it is even more superior. In this process, the circle calculator produces a demonstration G code. You will get a circular motion code in the form of a complete and incremental command. Simply highlight the line you want, switch to the EDIT page, and press F3. Copy the selected line from the circle calculator to the data input line and insert it into your program.

Press the PAGE DOWN button again and you will find the third dedicated calculator, often referred to as the “Milling and Tapping” (turning and tapping on the lathe) calculator page. This calculator may be the most useful.

In the milling machine control, MILLING is displayed at the top of the screen and TURNING is displayed in the lathe control.

Enter the recommended surface for the material you are cutting—speed and feed per tooth, and the workpiece or tool diameter and number of cutters. The controller will calculate the spindle speed value and feedrate override based on the values ​​you entered. As long as you give a specific value, the controller can calculate the remaining value. This sooner or later will come in handy when the machine is programming or optimizing a program.

The MILLING version of this page includes a section called MATERIAL which provides recommended surfaces for 21 different materials - speed and feed per tooth. Use the LEFT and RIGHT cursor keys to scroll through the bill of materials and they are differentiated from "20 gray cast iron" to "heat resistant cobalt alloy."

The lower half of the page is also “Speed ​​and Feed” and includes a simple calculator for calculating pitch, spindle speed, and feedrate override for hard taps. Enter any two of these values ​​and the calculator will calculate the third value.

The last two calculator pages can help solve the additional trigonometry problem. Pressing PAGE DOWN consecutively displays the CIRCLE-LINE-TANGENT and CIRCLE-CIRCLE-TANGENT pages.

These pages can help you determine the tangency of a circle and a straight line, or the intersection of two circles and a common tangent line. These problems occur more often than we think, and without a calculator, the handling of these problems can become very troublesome.

The CIRCLE-CIRCLE-TANGENT case is the most difficult to handle because there are a total of four points of cut between the two circles and the two common tangents. Enter the position of the X and Y axes and the radius of the two circles. The calculator will give four cut points on the X and Y axes. Press F1 to switch between two different scenarios. Then the data prompt appears asking for the "F" (from) or "T" (to) point coordinates, after which you can get the automatically generated G code. As before, you can press F3 in EDIT mode to paste the highlighted line of code into the data entry line to transfer these G code lines to your program. The command line you inserted later can be executed.

In addition to these useful calculators, you can use the HELP/CALC keys to see two more useful pages.

The third time you press this button, the machine will display a complete decimal and equivalent to the metric drilling - tapping chart.

Turning down, you will find its value, with all bottom hole diameters up to the 1' diameter of the diameter, including the metric table.

Press the HELP/CALC button again and the system will show a real-time clock showing the current date and time. Here you can easily modify the date and time on your machine so that the information recorded by your machine is always correct.

We have found that most, if not all, of the information on the HELP/CALC page also appears in your Haas Operator's Manual or the Good Mechanics Guide. But now, when you operate a Haas machine, the information is in front of you. You don't need to look around and waste time. With one click, you can find the answer you want. An important reason why HELP and CALCULATOR features were designed into Haas control is for your convenience.

All of the features we deal with can be found in Haas's latest control software. If you have an old machine or an earlier version, contact your local HFO. Upgrading your software and including these latest resources is just a simple task.

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