Maslow 4 - First boot errors

I just started my Maslow 4 for the first time in my attempt to get it setup and calibrated. I was able to get it to connect to my Wifi fine, but I noticed that is spamming an Error message so I haven’t attempted to calibrate as I could not figure out how to address the issue.

I have the error “[MSG:ERR: Encoder not found on top left]”. All of my encoders are connected and have lights from the RJ45 jacks. I’m also not sure about the error related to “No heartbeat from machine”.

Any help or direction is appreciated.

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There is definitely some issue with the top left encoder, it’s possible that there could be something wrong with it.

The first thing to try is unplugging and re-plugging both ends of that Ethernet cable, then turning it on again and seeing if the error goes away.

If that doesn’t do it, lets try unplugging both the of the etherent cables on the left side of the board and swapping which port they are plugged into and then turning it on again. We want to see if the issue stays the same or switches to reporting a different encoder not found.

Swapping the ethernet cables between ports on the board changes the error to be the “Bottom Left” now. Power cycling and swapping which ethernet cable was used didn’t affect anything.

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Unfortunately it sounds like a bad encoder board to me.

Shoot an email to anna@maslowcnc.com with where you want the replacement sent and we’ll send you a new one first thing tomorrow.

Sorry about that!

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@bar :I was booting for the first time, and got the error message: encoder not found on top left.
All 3 files 0.75 (although in the top mention in the serial it says 0.74 for the firmware, further down it says 0.75)
z-motors move, but not the belts. (but after zeroing Z, the z-motors don’t move)

I swapped the encoder ethernet cables on the left side, TL to BL, but still got the same error: encoder not found on top left. Also there is a red light blinking.
Performed multiple powercycles, also swapped some ethernet cables around, same issue remains. Something wrong with the ESP32 board?

Any help or direction is appreciated.

Arjen
1Maslow-serial.log (2.2 KB)

after swapping the TL to BL:
2Maslow-serial.log (2.1 KB)

If you plug the cable that normally goes to the top left encoder board into the bottom left one and vice versa does the issue stay the same or move to the bottom left one?

it stays the same

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Weird, it’s possible that there is an issue with the plug for the top left encoder on the controller board. Shoot an email to Anna@maslowcnc.com and we’ll get you a replacement in the mail ASAP

I guess I never replied with a follow-up. I did get a new encoder from Anna and it worked perfectly, solving my issues. I have successfully gotten fully through the calibration process and am working on my first cut. Thanks for the help!

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Interesting, so it was the encoder board and not the controller board?

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In my case it was the encoder board which was not working properly. The controller board was fine. I haven’t pulled out any of my electronics gear (multi-meter, logic analyzer, or oscilloscope) to try to determine if the chip on the encoder board went bad or if there is a manufacturing defect (bad solder joint or something), but if there is interest, I can dig into it further as I still have the bad encoder board.

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I’m interested and I’m sure Bar would like to know as well. I bet others in the community would be interested too.

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I plugged in the replacement, and everything seems fine now, thanks for the fast response.

Arjen

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