[Mat_bonbon]

Hi everyone,

I hope I'm posting in the appropriate section of this forum.

My company has a machine from Chengnuo Mechanics, specifically the model FM48, which is equipped with the LNC MW220 controller. Since we started using the machine, we’ve encountered several significant challenges, mainly stemming from the absence of a comprehensive manual. Additionally, we’re facing difficulties obtaining support from the factory due to language barriers, which complicates communication further.

Before seeking assistance here, I conducted extensive tests and explored numerous tutorials for similar machines that have nearly identical configurations and controllers. I’ve carefully studied the manual for the LNC controller and another from the Chinese manufacturer, but unfortunately, the latter not only lacks clarity but is also primarily in Chinese, making it difficult for us to understand.

Despite our efforts to troubleshoot, we have successfully resolved many issues; however, two critical problems still persist:

1. **Setting the Z-work Position:** I’ve been able to set the XY coordinates without any difficulties, but I’m struggling to set the Z coordinate. Following the tutorials and the manual has not yielded results. My process involves using a measurement tool as instructed, and then I attempt to set the Z coordinate manually. Unfortunately, this approach does not produce any output. When I attempt a different method, I often encounter a negative value, which, according to the tutorial guidelines, should not occur. This issue at least allows me to start the program until the tool switch, but it doesn’t resolve the concern.

2. **Tool Change Height Issue:** The second problem arises during the tool change process for subsequent operations. When the machine initiates the tool change, it starts functioning at a height significantly higher than the intended surface. I have calibrated all of the tools thoroughly before beginning the job, and I’ve verified that the Z values in the tool library are distinct and seem to be correct. However, the discrepancy in height still occurs, affecting the accuracy of the operations.

Additionally, I’m uncertain whether I’m using the correct post-processor for our operations. Currently, I have been using a generic post-processor that was suggested by a colleague here. However, despite my attempts to reach out to the factory for guidance on this matter, I have yet to receive any response. If anyone in this community could recommend a suitable post-processor that aligns well with our needs, I would greatly appreciate it.

I have also attached some pictures and videos that illustrate the issues I’m experiencing, which may provide further context.

Thank you all for your time and assistance! Any insights or help would be immensely valuable as we work to resolve these challenges.

[sawdustandcoffee]

Hi everyone,

I hope I'm posting in the appropriate section of this forum.

My company has a machine from Chengnuo Mechanics, specifically the model FM48, which is equipped with the LNC MW220 controller. Since we started using the machine, we’ve encountered several significant challenges, mainly stemming from the absence of a comprehensive manual. Additionally, we’re facing difficulties obtaining support from the factory due to language barriers, which complicates communication further.

Before seeking assistance here, I conducted extensive tests and explored numerous tutorials for similar machines that have nearly identical configurations and controllers. I’ve carefully studied the manual for the LNC controller and another from the Chinese manufacturer, but unfortunately, the latter not only lacks clarity but is also primarily in Chinese, making it difficult for us to understand.

Despite our efforts to troubleshoot, we have successfully resolved many issues; however, two critical problems still persist:

1. **Setting the Z-work Position:** I’ve been able to set the XY coordinates without any difficulties, but I’m struggling to set the Z coordinate. Following the tutorials and the manual has not yielded results. My process involves using a measurement tool as instructed, and then I attempt to set the Z coordinate manually. Unfortunately, this approach does not produce any output. When I attempt a different method, I often encounter a negative value, which, according to the tutorial guidelines, should not occur. This issue at least allows me to start the program until the tool switch, but it doesn’t resolve the concern.

2. **Tool Change Height Issue:** The second problem arises during the tool change process for subsequent operations. When the machine initiates the tool change, it starts functioning at a height significantly higher than the intended surface. I have calibrated all of the tools thoroughly before beginning the job, and I’ve verified that the Z values in the tool library are distinct and seem to be correct. However, the discrepancy in height still occurs, affecting the accuracy of the operations.

Additionally, I’m uncertain whether I’m using the correct post-processor for our operations. Currently, I have been using a generic post-processor that was suggested by a colleague here. However, despite my attempts to reach out to the factory for guidance on this matter, I have yet to receive any response. If anyone in this community could recommend a suitable post-processor that aligns well with our needs, I would greatly appreciate it.

I have also attached some pictures and videos that illustrate the issues I’m experiencing, which may provide further context.

Thank you all for your time and assistance! Any insights or help would be immensely valuable as we work to resolve these challenges.

I know this thread is old, but if anyone else is having issues with this, feel free to reach out. I have a machine with the mw2200 controller and have worked with my manufacturer extensively at this point to understand a lot of the controls better.

[sebastian_dz]

I know this thread is old, but if anyone else is having issues with this, feel free to reach out. I have a machine with the mw2200 controller and have worked with my manufacturer extensively at this point to understand a lot of the controls better.

Hi, I have chinese cnc router 4 axis with LNC MW2200, coud you help me undertand some options cause i have issue with acc and have bad surface when work on YZ Axis, chinese give me info that i should change some parmaeters but i coudnt find it after many tries i found that HSHP (high speed high precision) is the menu where i can change acceleration which is the issue. But there are few options and i dont exacly understand them if you could put some light on it i'll be glad. Attached pics with orginal settings and surface when router making move zigzag on Y axis and on X axis (which is ok).