#Lost connection with Box Turtle

1 messages · Page 1 of 1 (latest)

cyan cosmos
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I was doing a 4 hour, single colour print from lane 3 on the BT when i got this error. My printer's mcu is a manta m8p v2 with a cm4 attached. I am not running klipperscreen or led-effects. The BT is plugged in via usb<@&1304550334839918672> please help.

📎 klippy_11.log
upper violet
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bytes_write=170225 bytes_read=3800617 bytes_retransmit=48

blissful osprey
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It looks like it dropped out on USB

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Are there other USB devices connected to the manta? A hub involved in any way?

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Long term I would suggest simply moving it to CAN since it appears you have an existing CAN setup.

cyan cosmos
blissful osprey
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The cam and beacon are likely sucking up all the USB bandwidth

cyan cosmos
cyan cosmos
blissful osprey
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Its all the same pool of bandwidth from the CM4 though.

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I would bet if you took the cam out of the equation, AFC directly to Manta, issue will likely go away

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I ended up moving away from a SBC host in my 300 voron because it doesnt have can and I couldnt get reliability on long prints with a Pi.

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After about 6hr it would drop out

cyan cosmos
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what did you switch to? I am considering the octopus pro with rpi4. Also, if i have the can going out of the board to toolhead, is there a way to also send it to the BT?

blissful osprey
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Im using an intel-based mini-pc

zealous mountain
cyan cosmos
blissful osprey
cyan cosmos
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and that should be fine?

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do i put the resistor at both the manta and BT?

blissful osprey
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AFC and EBB, as the manta becomes the "middle"

cyan cosmos
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ok. Think it will be fine with beacon and webcam in the hub?

blissful osprey
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I would take the camera off the printer host.

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It can be on literally anything with an IP that can host it, and just point crowsnest/mainsaiil at it.

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Some folks use a 2nd/old pi just for camera duties

cyan cosmos
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damn, was trying to keep the setup in there simple-ish

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would upgrading to an octopus pro help? would it have the bandwidth for it?

blissful osprey
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Its not the control board, its the host computer.

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It could also be the hub in your case. A traditional USB hub that gets fed wall power may work better.

cyan cosmos
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Ah ok, so like upgrading from a cm4 to rpi 4/5?

blissful osprey
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It may fair better, but Ive seen this issue on those hosts as well.

cyan cosmos
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I'll unplug the camera for now and see. I plan on upgrading to the octopus anyway because of the beacon. I would rather not use a hub lol.

blissful osprey
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Any way you slice it lots of USB on a pi is usually a bad time, at some point.

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Gonna throw that canbus suggestion out again, Esoterical has a lot of info available on klipper canbus.

cyan cosmos
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Oh, I will be switching the BT to canbus lol. I was trying to figure out if I can keep my cam plugged in after the switch 😅

blissful osprey
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Oh yeah likely will be fine with the AFC on CAN

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Lots of data gets sent to the AFC during printing, all the extruder moves, etc.

cyan cosmos
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Ill do that first so. I need to get a can cable now 😛

zealous mountain
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The online image for a v1.1 m8p shows 2 CAN connectors next to each other just like is there for my m5p

blissful osprey
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V2 there is only one I believe.

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I only recall one when I built my micron and it has a M8P v2

cyan cosmos
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think it is worth going igus? or just strip an ethernet cable? 🤔 It is also twisted pair

zealous mountain
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Well that seems like a silly change

blissful osprey
cyan cosmos
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Cheers. Out of curiosity, could this issue also be seen as a "rescheduled timer in the past"? I got it sometimes when I was running carto via can. I recently switched to beacon

blissful osprey
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timer too close?

cyan cosmos
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No

blissful osprey
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Ah, I've not seen rescheduled timer before myself.

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A little googling seems to indicate, yes, that is a system load issue as well.

cyan cosmos
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I haven't gotten it since switching to beacon but Was just curious if you guys had seen it before

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I saw that it might be due to the mcu speed