// pressure_advance: 0.024460
// pressure_advance_smooth_time: 0.040000
14:58:06
// extruder1 -> extruder2
14:58:06
// Retrying to get normal extruder activation status (attempt 0), forced_park: False, retry_extruder_id: None
14:58:07
// Retrying to get normal extruder activation status (attempt 1), forced_park: False, retry_extruder_id: None
14:58:07
// Retrying to get normal extruder activation status (attempt 2), forced_park: False, retry_extruder_id: None
14:58:08
// Retrying to get normal extruder activation status (attempt 3), forced_park: False, retry_extruder_id: None
14:58:08
// Retrying to get normal extruder activation status (attempt 4), forced_park: False, retry_extruder_id: None
14:58:09
// Retrying to get normal extruder activation status (attempt 5), forced_park: False, retry_extruder_id: None
14:58:09
// Retrying to get normal extruder activation status (attempt 6), forced_park: False, retry_extruder_id: None
14:58:10
// Retrying to get normal extruder activation status (attempt 7), forced_park: False, retry_extruder_id: None
14:58:10
// Retrying to get normal extruder activation status (attempt 8), forced_park: False, retry_extruder_id: None
14:58:11
!! Extruder extruder2 is not allowed to switch, detected that extruder1 is detached. err-sta: ['1-(FFF)']
14:58:11
// Pausing..
I don’t know if you read the post, because it’s not a calibration issue.
Toolhead fell mid print because of obstruction is toolhead pickup and drop off location, ask is to add in firmware someway for system to error out if the lock in not successful
We haven’t encountered this issue yet, so I probably can’t offer any effective advice.
Generally, if there’s no physical resistance during the toolhead pick-and-place process, the toolhead can be properly locked onto the tool changer by the mechanical structure.
But I checked with the tech team—switching toolheads does include a detach check, but there’s currently no mid-print detection. They’ve added the request to the backlog and will optimize it later.
If you encounter this situation again, I hope you can immediately provide us with the saved logs. Based on this type of situation, we will launch a machine-side log upload function before the end of the year.
I’m genuinely surprised. I think you mentioned on Discord, you did not see the failure in action.
Are you certain that the printhead detached while printing? As far as I know, if the head is successfully picked, there’s almost no way for it to detach once pulled from the docking pin. Although it is possible for it to get knocked from the docking position then stop.
I guess Snapmaker can say exactly how “successfully picked” is detected. But I mean, it would not resume printing unless the head were securely attached, afaik. And in that case, I’m not sure how it’s possible for it to come off until a park is later attempted.
Yes, I wasn’t home when that happened. The toolhead is in the middle of the plate, and I’m sure the carriage brought it there. I guess it was able to pick up the toolhead, but since it wasn’t secure, it eventually fell. That also explains why the bottom cover of the carriage fell; it must have been because of the weight of the toolhead.
Sounds like an alignment issue with the toolhead just like I have been having… Those are all the same things happened to me. Sometimes the bottom cover of the carriage would get ripped off when changing toolheads.
You “might” need to adjust your alignment coordinates. This problem has been plaguing my machine, although I haven’t had the bottom plastic cover of the carriage rip off in awhile.
