Basic Information: Printer Model: SecKit Tank CoreXY on Fluidd MCU / Printerboard: BTT Manta M8P V2.0, BTT EBB36 v1.2 Host / SBC: BTT CB2 with v1.0.5 BTT’s Debian 11 image here klippy.log A: With MCU: EBBcan error klippy(1).log (428.9 KB) klippy.log B: With MCU: MCU error klippy.log (4.8 …

Hiya, The big thing to check is your CAN bus wiring - probably not what you want to hear but an intermittent connection in the cable can cause your problems. Do you have the cable (not relying on just the connector) anchored at both ends with the most important end obviously being at the toolhead. …

Got the cable pretty well secured I think, jiggling, wiggling, tapping, and even smacking haven’t been able to trigger the problem. Is there a utility or a logging script I can run to see if it’s the cable disconnecting? The thing that makes me think the cable may be ok is that the CB2 is directly …

Nice looking printer. Could you get a better image of the middle one (showing the CAN bus going into the printer’s frame)? Your toolhead connection looks fine but I’d like to get a better view of the other end, especially since it looks like it moves. I should have noted in my previous reply that…

Hey Myke! Got my meter out and verified V- is floating and isolated from AC-Ground and the frame. Also verified the stepper-wire shields are connected only to the frame/AC-Ground. I can try running it with those disconnected and floating? [20241107_000425] [20241107_000447] [20241107_001017] […

[image] Automobilie: Undervoltage does pop up at what looks like the start The messages indicate that the drivers recover from the UV condition but this is at least very fishy and should not happen at all. [image] Automobilie: There doesn’t seem to be any obvious signs of system overload …

[image] Automobilie: Hey Myke! Got my meter out and verified V- is floating and isolated from AC-Ground and the frame. Also verified the stepper-wire shields are connected only to the frame/AC-Ground. I can try running it with those disconnected and floating? That’s good - I’d say leave it a…

Hey Sineos! Hmmm, well I guess I can try setting my oscilloscope up to the power rails and set it to trigger if it drops too much. Any idea what the threshhold is to trigger that warning? Everything should be running 24v, steppers included. Hey Myke! So the main power supply is a Meanwell LRS-200…

[image] Automobilie: Soooo, looks like I need to try a different PSU, or at least set my stepper currents down and see if that makes difference. My old Ender 3 has a 350W, 24v Supply, might try swapping that in a and see what happens. *Dropped the total stepper currents from 8A (192W) to 5.8A (…

Was able to complete a part that it’s been crashing on last night, so fingers crossed that a new PSU works out! Looking at a 48v secondary supply as the Manta lets me run the steppers on a different supply and should be able to fit it in place or even get two high -efficiency PSU’s that can fit in …

MCU shutdown: Missed scheduling of next digital out event

General Discussion

Sineos November 7, 2024, 7:03am 5

See Missed scheduling of next digital out event

Topic		Replies	Views
CAN network failures - M8P CB2 EBB42 General Discussion	76	801	November 16, 2025
MCU 'mcu' shutdown: General Discussion	48	1504	February 14, 2025
Problem with CANBUS during print/idle General Discussion	81	8879	December 6, 2024
MCU shutdown after couple hours General Discussion	25	335	May 13, 2025
Voron 2.4 CanBus: Lost Communication to mcu (EBB36) General Discussion	59	952	August 16, 2025

MCU shutdown: Missed scheduling of next digital out event

Related topics