200W CNC auto-pauses second into an operation

Snapmaker 2.0
1

I’ve been using my new 200W CNC on the snapmaker 2.0 for a few weeks, but it has recently stopped working. When I execute an operation it loads the gcode and begins to carve but pauses itself (not at my command) within the first minute or so. See the first attached image. When I press the “resume” button on the touch screen it gives an error message: “Unable to resume job. Please check your machine settings and try again.” See the second attached image.

What can I do to fix this or even start to troubleshoot?

cnc_pause
cnc_pause1920×2550 228 KB

cnc_wont_resume
cnc_wont_resume1920×2550 221 KB

2

Door switch?

3

Export your logs and let us have a look about.
If the tool gets blocked the issue appears the same.

1 Like
4

I think it is triggering the “tool blocked” case incorrectly. I experimented by raising the z offset a bit so it wouldn’t engage the stock. This ran fine until it came to a point where the tool brushed against the stock (but wasn’t removing any material). The moment the tool touched the machine paused.

I’m at work but I should be able to export logs when I get home this evening. That is something I do on the touch screen? Are the logs saved to the USB stick?

5

Yes, Export via Touchscreen and exported to a USB stick, it takes a while so click export and wait until the message it’s exported.

https://wiki.snapmaker.com/en/Snapmaker_2/manual/export_logs

6

Following up here in case anyone else sees this issue:

I contacted snapmaker support and after a few rounds of debugging (sending them logs etc) they concluded that there was a fault in the control board and sent me a new one. I was able to do the swap myself and it did solve my problem.

1 Like
7

As it stands in the new gcode wiki, you should be able to readout the current state/error of the toolhead with M1006:
https://wiki.snapmaker.com/en/Snapmaker_Luban/manual/2_supported_gcode_references

M1006 (SM2.0) - Get Toolhead Details

Description

  • Get detailed information of the toolhead. For different toolheads, the information format may vary. Only key fields are explained here, and see the following example for details.
    • 3DP
Tool Head: 3DP
active_probe_sensor: 0
hotend_type: 0: 1, 1: 1
hotend_diameter: 0: 0.40, 1:0.40
Kp: 150.000, Ki: 1.000, Kd: 30000.000
z_compensation: 0: 0.585, 1: 0.397
echo:Hotend offsets: 0.00,0.00,0.000 26.00,0.00,-1.524
ok

Copy

* `Tool Head: 3DP`: Toolhead type - 3DP.
* `z_compensation: 0: 0.585, 1: 0.397`: Z probe compensation.
  • Laser
Tool Head: 20W LASER
Current Status: OFF
Current Power: 0.00
Focus Height: 65
ok

Copy

* `Tool Head: 20W LASER`: Toolhead type - 20W Laser.
* `Current Status: OFF`: Current status of the laser.
* `Current Power: 0.00`: Current power of the laser.
  • CNC
Tool Head: 200W CNC
rpm: 0, error: 0x0
M_I: 346, M_V: 24.23
M_TEMP: 25.80, PCB_TEMP: 26.90
ctr mode: CNC_CONSTANT_RPM_MODE
run status: STOP
cur_power: 0 target_power: 0
cur_rpm: 0 target_rpm: 0
last error: 0x0
ok

Copy

* `Tool Head: 200W CNC`: Toolhead type - 200W CNC.
* `cur_rpm: 0 target_rpm: 0`: Current rpm and target rpm.

Usage

M1006
8

I have begun to experience the same thing. I have the 200w CNC, bracing kit and quick swap. I have been routering out some boxes for various tools in my wood shop. Everything going fine and suddenly the machine stopped at 44%. I got the same message that it couldn’t restart. I cycled power to restart and it stopped as soon as the tool touched wood. Tried all sorts of things to no avail. The machine would stop at various stages. Last time I started I (carefully) reached out and grabbed the spindle and it stopped instantly with very little force. I don’t know how to pull up codes or whatever and they wouldn’t mean anything to me. Is there some setting I can adjust? Is my control board bad?

Update: I installed the original CNC. It runs and will not stop with finger pressure. It finished without incident. Is the 200w unit bad?

9

Ask support about they will help:
https://snapmaker.formcrafts.com/support-ticket

This happens if the force on the module is too high, the error could be seen in the log files.
Unfortunately it came not from too much speed or pressure in your case…

10

I understand that if the force is too high the machine will stop, e.g. trying to remove too much material. But certainly the mere pressure from grabbing the spindle (albeit gingerly) should not stop it. The original module cannot be stopped at all no matter how much pressure I put on the spindle with my fingers. Anyhow, I sent a request to support.