Lost Communication with MCU 'toolboard_t0'
The printer is a VC4-500 IDEX hybrid. The error occurred for the first time during a 24+ hour print. When I tried to restart the print the next day, the error occurred almost instantly again, but this time it was triggered with a material change by the Orbitor smart sensor. I tried this a few more times, even unplugging the smart sensor, but the printer started homing and heating and encountered the same error. It doesn't seem to make a difference whether the sensor is plugged in or not.
Currently, I can't even perform a homing sequence without this error occurring.
6 Replies
Wiggle USB cable, does it error?
It's fixed with zip ties and won't move, tried to force an error when pushing on it but nothing happens. Maybe it's the cable itself, waiting for a replacement at the moment
I changed the USB cable, but it didn't change the behavior. While refitting the cable sleeve, I noticed that one of the 24V cables had become loose at the crimped connection. I recrimped the cable. The connection loss error is gone, but there are still random filament changes. I disabled the Orbit Orbiter Smart Sensor and started a print. We'll see if it finishes without error. Do you have any ideas about the random filament changes?
Lot of people with filament sensors have had trouble with them being too sensitive. Make sure the filament path is short straight smooth
The filament is fed directly into the sensor, eliminating the need for a tube. The spool is mounted on top of the printer. There have been no print errors with the deactivated sensor so far.
A short.length of tube may help then, so the filament enters straight and doesn't get "caught up" on the edge
okay, will try that, thank you