There are many precautions for choosing a small engraving machine. The following is a general introduction: the structure of the machine, electrical performance, accessories used, effective stroke size, engraving range, and all spindle and motor models, as well as engraving speed and engraving machine. Let’s pay for these aspects.
1. Whether the machine structure is reasonable: According to the structure: column type and gantry type. The gantry is divided into fixed gantry and mobile gantry. Column type and fixed gantry type have good rigidity. Divided by material: aluminum alloy, steel plate, cast iron, weight; weight increases, rigidity increases sequentially, as long as you do not mill steel, engraving wood, jade, copper, aluminum, or light-weight milling of soft metals such as copper, aluminum, and aluminum alloy racks. Meet the requirements.
In addition, the motion structure is also very important, whether it is a ball screw or a T-shaped screw, a round rail or a square rail, if it is a round rail, it depends on whether it is a linear bearing or a self-lubricating bearing. The screw must use ball wire without thinking. Rod, this also depends on where it is produced, the approximate price is this self-lubricating bearing round rail = two-way China-made linear bearing round rail price, China-made square rail = two-way self-lubricating bearing round rail price, Taiwan-made square rail = 2 times the price of square rail made in China, square rail made in Japan = 2 times the price of square rail made in Taiwan; price of ball screws made in Taiwan = 2 to 3 times the price of square ball screws made in China.
2. Whether the electrical performance is stable: The electrical performance mainly depends on the anti-interference ability of the electronic control part. Generally, the electronic control extension 3 is controlled and the Weihong card is controlled. Relatively speaking, the performance of the Weihong card is very stable, but the USB version of mach is controlled It’s also very stable when the card is around one thousand cards. Most of the carving deformations that we often see are controlled by parallel port mach3. This parallel port mach3 has the worst performance. It may be fine if you change the computer. It may be impossible to fix it. Macro card or USB mach3. In addition, the wiring of the electric control box is reasonable and the shielding is done well, which is also a necessary condition for anti-interference. The simple test is to gradually move the motor slightly at the moment of power-on, then the anti-interference is not well done.
3. Whether the effective stroke meets your requirements: It depends on the length, width and height of the largest piece you need to engrave, but don’t blindly pursue a large stroke, just enough.
4. Is the performance of the spindle motor good or not: If you are making a commodity, you must use a water-cooled spindle. For more work, it is best to use a 4-bearing water-cooled spindle, otherwise the service life is relatively low.
5. Engraving speed: The engraving speed determines the efficiency of the work. Under the alignment that the engraving effect meets the requirements, of course, the faster the better, the speed is not simply directly linked to the F value, and even depends on the motor acceleration ,, the diameter that the acceleration value can be set, the closer the actual engraving speed can be to the F value, the acceleration at the beginning and the end of a straight line is more affected, the middle section is the F value, the lower the F value, the better the engraving quality, the acceleration value is close to 46 The brand is opened coarsely and then carved again. If the set fine carving code depends on the complexity of the pattern in the range of 100,000 to 300,000 lines, it will not be slow after two hours.
6. How much is an engraving machine? This is a problem that all customers care about. We have already analyzed the configuration and performance of the engraving machine. The configuration and performance of the engraving machine are the primary conditions for determining how much an engraving machine is. The other is the after-sales service of different manufacturers. Therefore, how much an engraving machine costs depends on this. Your own analysis and judgment are still the same: the right is the best!
The above is the summary of the selection of small CNC engraving machine, I hope to provide you with some help before you buy the engraving machine.
