Failing XL, What do you think is the problem?
I had it with support.
I am tired of sending pictures, videos, and waiting in chat queues.
I received my XL before summer, and got it upgrade with 2nd Tool.
In September started crashing the heads constantly, to the point that could not be calibrated without a crash. (I think it passed only once in 6 or 7 attempts). like this (from 1m 30s):
After doing so many tests, videos, photos and belt tensions... they decided to take the printer in. So I sent it back to Prusa.
To my surprised they only did a routine review in which they claim they could not reproduce the issue. Which is very hard if you have done some testing and understand that the point of testing is to reproduce failures so that can be fixed, not to retry until you can tick green... but that is another story.
I got my printer back, and after printer one benchy, the filament sensor starting failing, seems dead (I mount on right side, mirrored).... so after cleaning and testing multiple times a decide that mount on the other port (filament 1-3), and there, the filament sensor works perfectly.
So, clearly the filament sensor and cable are fine... but there is some issue with the PCB or Firmware.
Considering the the printer and its history. I am almost sure that this is a failure originating in silicon. I have noticed other users with hardware failures.
But what is your opinion? where do you think the problem origin is?
Meanwhile I will disable the sensor and brace for further impacts.
RE: Failing XL, What do you think is the problem?
Sadly I can't get the video to run on my end. What FW are you running? Not to sound like support but I would also like to see pictures around both your toolhead and nozzle seals. A good view of the cable path.
Let's just try to focus on getting your xl working. The more info you give the more help we provide with this.
RE: Failing XL, What do you think is the problem?
The firmware is the latest: 6.1.3
Here we can see the video of the hear crashing.
https://drive.google.com/file/d/1Z6r3jz_DZXR3UTp6vMxyPrz1Cub_NP_j/view?usp=drive_link
The side sensor is a no brainer. The connectors are solid a clearly labelled: filament 1-3 and filament 4-6.... on one connector the filament sensor works perfectly, on the other fails 100% of times, and was working last week.
So, sensor and cable are in perfect condition.
And I cannot see how this situation could emerge from a firmware bug.