Answered No axes responding

Hello,
I have one of several R1+ that I am trying to get up and working. One started with the z-axis only moving up which was fixed for a short time thanks to the people on this forum. Then I had troubles with the x-axis movement, now there is no response between Matter Control and the printer. There are no jams, seems like no endstops or sensors have been tripped (although not an expert on these), everything is level as far as I can tell.
Can anyone give advice on what would be a good next step? Asking as this may be a known problem.
Should I re-install firmware or Matter Control, replace a component on the main board, or is there a sensor test or board multimeter test I can do?
Thanks in advance.
Jon.

 

Open terminal mode in Matter Control to see if you are receiving data from the printer mainboard. There may be a way to truncate repetitive data, but I don't have a system up and running and can't remember for certain. Typically, you can send a g-code command to the printer and get a reply.

It's safer to stick to x or y movement commands, which would prevent the nozzle from being driven into the bed. Send a g-code to move the x-axis ten mm or so and see how it responds.

From that point, the option tree expands like a spider web, so it's challenging to make suggestions beyond this, until other information presents itself.

 

Thank you fred3D and mark.

 

Please consider to provide updates of your progress. If you are still stumped, we may be able to help. If you are not stumped, it's great to hear that we are helpful.

 

Hi,
I used terminal mode to test the axes and I could move all axes in positive and negative directions initially, then after a minute or two, I would lose functionality in one direction, then another, until I could not move at all. Has anyone had this problem?

 

At this stage, consider looking at hardware and/or power supply problems. My next step would be to identify and disconnect from the main board all but one of the stepper cables and see if you can execute more commands than previously noted or perhaps so many you grow weary of doing so.

Test each stepper cable in this manner, to see if each one will function in a normal manner for many (infinite) moves. Use caution with the z-axis as there are two cables to address.

If all three will work completely for many many tries, make for two connections. X/Y, then X/Z, then Y/Z.

There are methods to test the stepper driver circuits, but something is getting too hot too soon.

Oh, yeah, does the underside cooling fan work properly?

 

I think the underside cooling fan may have been unplugged. Does it plug into this point (see attached images), just want to be sure? I will still do a stepper cable and endstop test. I would like to multimeter test them first as it is quicker and easier to verify if there is an initial problem before I go deeper to unplugging and running. Do you know resistance should I expect from the stepper motors?

 

Thank you Mark, thank you Fred3d.
The Electronic board cooling fan is not working, as well as fan 2. Multimeter continuity test confirmed.
Will need to replace, then further troubleshoot if still having problems. Thank you.