mycnc:mycnc_advantages
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This article goes over a number of such advantages and opportunities that are present in myCNC software compared to the other major CNC control systems. | This article goes over a number of such advantages and opportunities that are present in myCNC software compared to the other major CNC control systems. | ||
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- | ====Plasma and Oxy-fuel Cutting==== | ||
===Stopping and resuming the program=== | ===Stopping and resuming the program=== | ||
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This function is similar to the one described above, however, the program is stopped automatically due to a break in the plasma torch arc. The program can be resumed by pressing the Run button after eliminating the source of the break (by cleaning the plasma torch, replacing the nozzle, etc). | This function is similar to the one described above, however, the program is stopped automatically due to a break in the plasma torch arc. The program can be resumed by pressing the Run button after eliminating the source of the break (by cleaning the plasma torch, replacing the nozzle, etc). | ||
- | ===Drafting | + | ===Simulation |
- | By pressing a button on the remote control or on the screen of the control system, the system can be set to a drafting | + | By pressing a button on the remote control or on the screen of the control system, the system can be set to a simulation (jog toolpath) |
===Running the program backwards and forwards=== | ===Running the program backwards and forwards=== | ||
- | In drafting | + | In simulation |
{{: | {{: | ||
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In comparison with the " | In comparison with the " | ||
{{: | {{: | ||
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+ | ===Hole Cutting=== | ||
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+ | {{: | ||
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+ | A 2D (or a 2.5D) file such as the one shown above contains both the outer and the inner contours of the part being cut. In certain applications (such as plasma cutting, tangential knife cutting) it is preferable to have a separate (often lower) speed for the holes that are located inside the main contour. However, a number of CAM programs do not accommodate for this need if they do not have an implementation for two separate speeds. | ||
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+ | To solve this issue, myCNC features an Arcs Slow Speed Control settings (Settings > Motion) which allows the user to quickly set up hole cutting speed based on the arc diameter of the hole in question: | ||
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+ | {{: | ||
===Detail Multiplication=== | ===Detail Multiplication=== | ||
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* A heavy sheet that has been put down slightly asymmetrically, | * A heavy sheet that has been put down slightly asymmetrically, | ||
* Using the last remaining bits of material that require the part to be rotated or mirrored in order to fit it in | * Using the last remaining bits of material that require the part to be rotated or mirrored in order to fit it in | ||
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+ | Read more about this feature [[mycnc: | ||
===Cutting from the edge of the sheet=== | ===Cutting from the edge of the sheet=== | ||
- | In case the cutting is done on a thick sheet, it can be hard to perform the initial cut in order to break through the material for the first time. In this case, the edge cutting function can be used, since the breakthrough process is a lot less demanding if performed on the edge of the sheet. In this mode, a spot for the cut will be selected, the part itself is selected through scrolling to the necessary cutting command (as shown above), after which the operator can move the machine from the cutting position to the closest point at the edge of the material sheet and turn on the edge cutting mode. | + | In case the cutting is done on a thick sheet, it can be hard to perform the initial cut in order to punch through the material for the first time. In this case, the edge cutting function can be used, since the breakthrough process is a lot less demanding if performed on the edge of the sheet. In this mode, a spot for the cut will be selected, the part itself is selected through scrolling to the necessary cutting command (as shown above), after which the operator can move the machine from the cutting position to the closest point at the edge of the material sheet and turn on the edge cutting mode. |
- | This will automatically start the initial contact and ignition procedure, after which the machine will automatically | + | This will automatically start the initial contact and ignition procedure, after which the machine will move directly to its actual cutting position upon reaching which it will continue to execute the cutting program. |
===Parts Library=== | ===Parts Library=== | ||
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+ | {{youtube> | ||
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myCNC includes a library of more than 70 default parts which can be altered according to the user's specifications. The parameters that can be changed are: | myCNC includes a library of more than 70 default parts which can be altered according to the user's specifications. The parameters that can be changed are: | ||
* the size of the part | * the size of the part | ||
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The results of the system working with such an imported DXF file, library parts, or part multiplication are saved as G-code files. Therefore, the myCNC software can be used with third-party CNC control systems to prepare the necessary G-code commands. | The results of the system working with such an imported DXF file, library parts, or part multiplication are saved as G-code files. Therefore, the myCNC software can be used with third-party CNC control systems to prepare the necessary G-code commands. | ||
+ | ===Cut Charts=== | ||
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+ | {{youtube> | ||
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+ | myCNC software makes it possible to create cut charts for different types of plasma cutting sources. The list of parameters that the operator indicates when loading a module from a table can be configured. Usually the following parameters are considered: | ||
+ | * material (regular steel, stainless steel, aluminum, titanium, etc) | ||
+ | * thickness | ||
+ | * cutting current | ||
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+ | When loading the control system, the following parameters will be loaded from the cut charts (provided they have been inputted) | ||
+ | * Cutting speed | ||
+ | * Ignition height | ||
+ | * Punching height | ||
+ | * Punching time | ||
+ | * Cutting height (arc reference voltage for THC) | ||
+ | * Cutting current | ||
+ | * Magnitude of current decrease at the trajectory corners | ||
+ | * Cut width adjustment (kerf) | ||
+ | * Crawling speed (during punching through) | ||
+ | * Driving time at creeping speed (when punching) | ||
+ | * The delay time to enable tracking after punching | ||
+ | * Gas parameters for manual and automatic Hypertherm console (type of cutting and shielding gases, MixGas1, MixGas2 gas mix values, plasma torch cutting and shielding channel pressure values during Preflow and Cut) | ||
+ | * Consumable components of the plasma torch as auxiliary information for the operator of the machine (types of electrodes, nozzle, protective nozzle, protective cap, swirl and water tube) | ||
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+ | {{mycnc: | ||
+ | {{mycnc: | ||
+ | {{mycnc: | ||
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+ | ===Torch Height Control=== | ||
+ | Unlike many CNC systems, myCNC has full integration of the THC (torch height control) system. This brings along the following benefits: | ||
+ | * Cutting height (THC reference voltage) is set in the CNC system itself (not on an external THC, as in many other systems). In addition, the optimal value for the cutting height can be loaded from the Cut Chart when selecting the material thickness. | ||
+ | * The system implements several algorithms to prevent the plasma torch from diving - a THC start delay, THC preemptive shutdown, and THC momentary shutdown when cutting speed drops below a predetermined value, as well as during abrupt voltage surges. | ||
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+ | < | ||
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+ | NOTE: | ||
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+ | Arc voltage is not stable for the first few tens or hundreds of milliseconds | ||
+ | after the material has been punched through. | ||
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+ | At the end of the cutting process, the plasma torch passes over an already cut out trajectory, | ||
+ | where the arc length and the arc voltage increase. | ||
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+ | The arc also lengthens and its voltage increases at the corners of its path as the | ||
+ | cutting speeds lower and and more material is burned though. | ||
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+ | When the arc passes through the cut, the arc voltage can increase | ||
+ | up to a few dozen volts. | ||
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+ | All of these factors can lead to short-term diving when running THC, | ||
+ | leading to the plasma torch nearly touching the material | ||
+ | Timely reactions to such situations and short-term blocking of | ||
+ | torch height control in such scenarios is an effective method of diving prevention. </ | ||
+ | * In addition to the work on the pre-set arc voltage (loaded from the table), the THC myCNC system is able to measure the real arc voltage after punching and is to maintain this voltage during the cutting process. This tracking method is becoming increasingly popular, as it allows you to get away from the effect of " | ||
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mycnc/mycnc_advantages.txt · Last modified: 2021/01/14 16:03 by ivan