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On the Original Prusa XL, the selftest checks for issues in the assembly of the printer, its wiring and the electronic components. It is the first part of the Calibration Wizard, which is prompted automatically when you turn on the printer for the first time or after a Factory reset (XL). After the initial calibration is completed, the selftest can be initiated in LCD Menu - Calibration - Selftest.
During the selftest, its results are shown on the screen, indicating success or fail for each point. Alternatively, the results can be shown at any time on the following path: LCD Menu - Calibrate - Diagnostics - Show selftest results.
The Original Prusa XL selftest procedure can determine which of the fans doesn't work. Check the one that is diagnosed as not OK.
The printer can determine if the components are moving correctly along each axis.
In case of an issue on the X-axis, or on the Y-axis, make sure that there is no obstacle to the movement, and readjust the belt tension.
The selftest can determine a fault during the heating of a component, and the affected component.
Heat up the affected component in [LCD Menu - Settings - Preheat], and see if any error appears: if it does, the error should have a QR code that redirects to the article that describes how to troubleshoot that particular error.
A functioning loadcell is fundamental for the Original Prusa XL to detect that the nozzle is close enough to the steel sheet for printing, and to avoid damage that would be caused by the nozzle digging into the steel sheet.
The Original Prusa XL is equipped with two filament sensors: the first one is located on the side, close to the input of the PTFE tube where you feed the filament. The second one is located in the extruder. Both filament sensors are necessary for the correct filament retraction: when the sensor on the side detects that the filament has run out, the filament will be retracted in time.
6 comments
The only information available addressing this problem is via the community forums, and no offense meant to community members, but that information is the very definition of "shotgun" trouble shooting. Running a test until it passes? Not helpful for Prusa or the XL community.
Who at Prusa is responsible for managing the XL platform and when will that person address this issue?
Seems rather bizarre. What are the physics of what's going on?
-> The vibration of the other printer were enough to disturb the loadcell when homing for the Z-Axis. Move the printer on it's own table, no more problems.
I can't work out how to disassemble the sensor to see if something is stuck.
My printer is assebled but failing the intial tests with afain rpm failed error your trouble shooting steps only suggest checking the wiring which I have done! So how long am I going to have to wait with you dropping me while I am waiting in the que. This shows no regard for customers that spen thousands of dollars for your printers and then have to spend many hours because your chat support software does not allow people to wait more then a specific amount of time when your ques are to long for this to be adequate.
How about not being sorry about making me wait and fix the problem with your chat software!!!!!! tHIS IS COMPLETLEY UNACCEPTABLE!