Sunday, September 17, 2017

Solution for CNC Router Fault with One Axis Not Working

Sometimes, we may encounter CNC router fault that one of the axes is not working. The fault axis can be X-axis, Y-axis or Z-axis. Any one is possible. When it happens, what shall we do? Now matter you machine is wood cnc router, stone cnc router, Styrofoam cnc router or auto tool changer cnc router, you can follow our guides here.   

1. The controller cable or connector got lossen, or controller problem. 
Troubleshooting: please disconnect the controller cable (connector) and connect it again. If problem is from controller, please replace the controller. 

2. The driver is broken.
Troubleshooting: please check the condition of driver. If confirm the reason is driver, then replace the driver. It is easy to check servo driver because there is error code. For stepping driver, you are suggested to exchange the wiring between two drivers to find out the error point.

3. The motor is broken.
Solution: please replace the motor. 

4. The guide block is broken.
Solution: please replace the guide block. 

5. The wiring between driver and motor is fault
Solution: please replace the wire. 

6. There is debris or other things on rack or guideway
Solution: please clean the debris. 

7. Driver parameter is wrong set up 
Solution: please set up the driver properly

EagleTec engineer team is ready to guide you. Please contact freely if need any assistance. 

Excerpt from 
Jinan EagleTec CNC Machinery Co.,Ltd. 

Difference Between Stone CNC Router and Wood CNC Router

When consider to buy a CNC Router, many users always asking “what is the difference between wood cnc router and stone cnc router?”

Compared with wood router, cnc stone router can finish all the jobs of wood router, also can work on stone, aluminum and copper. In a word, it has more application on materials than wood router. 

If seeing from configuration, stone router has three points difference compared with wood router. 
1. Body construction of stone cnc router must be heavy duty.
2. Stone router have to be equipped with water recycle system for purpose of cooling router cutter bits.
3. Stone router machine must be equipped with the spindle which is especially for stone working job.

All the users will take care point 1. and point 2. here. But for point 3, it is ignored by most of the users. So we are going to talk some details regarding point 3 now. 

Why the spindle for wood router can not be used on stone router?
1. Stone hardness is higher than wood hardness.
2. In the process of stone working, water recycle system will spray water on router bits and working table for two purpose:
2.1 Cooling the router bits.
2.2 Reduce dust
3. A lot of users make stone router working for 24 hours without stop due to the high hardness and big size of stone materials. And here is an example, a user makes machine keep working for nearly 30 days and machine only have a stop when the bits need to be changed. He keeps machine working in this way until the job finished and then give a 3 day rest for machine. But the spindle does not work any more after machine start again 3 days later.

Some users also run wood router machine for 24 hours without stop. But please noted first wood material is softer than stone; second, wood carving jobs only take a small step down; third, for wood carving, the cutter shank is 6mm maximum, while for stone working, it needs 12.7mm normally.

Which is the right spindle for stone working job?
1. Spindle for stone working should have a bigger torque than for wood. Torque is determined by the electric current of spindle; under the same voltage, the bigger the output current is, the bigger the output torque is. How to increase the electric current? All the spindle manufacturers make this way: increasing the length or diameter of the stator.
2. According to the point 2 in above, spindle for stone working should have good performance on dustproof and waterproof. If the dust comes into the spindle, it will reduce the bearing service life largely; if the water comes into spindle, bearing locked immediately.
3. According to point 3 in above, 24 hour working is not a thing of bearing life only, instead, it is a test for full components of stone working spindle. Just like a car, 24 hours driving is not only the test of 4 wheels. This is why the stone spindle cost more than wood working spindle.

So you are strongly suggest to check the spindle carefully when consider to buy a stone working cnc router machine. Some suppliers may use woodworking spindle on stone cnc router machine due to the cost.

Hope this article is helpful for you! Above is my personal idea, and welcome your discussion if any different idea. 

Excerpt from 
Jinan EagleTec CNC Machinery Co.,Ltd. - CNC Router Manufacturer


Sunday, September 10, 2017

Troubleshooting of Leadshine Hybrid Servo Error Code ER020 | |EagleTec

As a middle product between servo and stepping, leadshine hybrid servo is widely used on machines like single head cnc router, nesting cnc router, stone working cnc router and pneumatic tool changed cnc router. Hybrid servo is also outfitted with encoder like the AC servo. And when it find any fault, the error code will show on the driver. Here we are going to talk something regarding leadshine error code ER020. Sincerely hope this article can help you. 

What can cause code ER020 appear? And how to solve it? 

1. Phase Failure due to motor cable get loose
Troubleshooting: please get the cables well connected again

2. Encoder Failure due to encoder cable get loose
Troubleshooting: please get the cables well connected again

3. Position Error caused by follow reasons:
3.1 Limit sensor failure
Troubleshooting: please replace a new sensor with cable, or adjust the distance between sensor and steel chip.
3.2 Signal interfere
Troubleshooting: please clear the interfere
3.3 Ground protection failure
Troubleshooting: please do grounding correctly
3.4 Motor cable with open circuit  
Troubleshooting: please repair the open circuit
3.5 The timing belts get loose
Troubleshooting: please fasten the belt properly
3.6 Wrong subdivision
Troubleshooting: please set it correctly
3.7 Wrong pulse direction
Troubleshooting: please set it correctly

4. Tracing error out of tolerance caused by below:
4.1 Wrong wiring on encoder
Troubleshooting: please wire encoder correctly
4.2 Wrong order of motor phase wiring
Troubleshooting: please correct the order of phase wiring
4.3 Encoder broken
Troubleshooting: please replace a new motor
4.4 Driver broken
Troubleshooting: please replace a new driver

Our technical support team is ready to serve you, please feel free to contact us if you need any assistance. 

Excerpt from 
Jinan EagleTec CNC Machinery Co., Ltd. - China CNC Router Manufacturer