romary.sonrier
RRCRat Rig Community [Unofficial]
•Created by romary.sonrier on 9/27/2024 in #fix-my-printer
V-CORE MGN12 Linear rails gone rusty : how to protect steel bar from rust ??
Some on my linear rails got rusty on my V-CORE 3.0, and I wonder what is the recommended oil to protect steel from getting rusty ?
Same question to lubricate linear rails , any recommended oil ?
4 replies
RRCRat Rig Community [Unofficial]
•Created by romary.sonrier on 6/7/2024 in #fix-my-printer
Intermitent klipper shutdown - Unable to read tmc uart + Max31865 Overvoltage or undervoltage fault
Hello,
I im facing some random shutdown from klipper on my vcore 3 / btt octopus / PT1000 thermistor w/ Max31865.
Now I have 1/3 of print failing into unexpected shudown, very annoying !!
I have some intermitent error message from "Max31865 Overvoltage or undervoltage fault", not always causing shutdown while printing. once or twince per print.
But about every 3 message , it is followed by :
Transition to shutdown state: Unable to read tmc uart 'stepper_y' register DRV_STATUS
or
Transition to shutdown state: Unable to read tmc uart 'stepper_z' register DRV_STATUS
What could be the most likely root cause?
- power outage ( i don't think so, because other equipment would have been impaced)
- wiring issue with the PT1000 ?
- faulty PT1000 ?
- ESD issue, from moving hotend ? bed is grounded.
- faulty tmc driver 2209 ? (not my best option since most of print goes well + error is not on the same axis/motor)
2 replies