RE: As of 6.4.0, the XL still crashes toolheads into one another. It is inexcusable.
I was expecting that exact same comments. I just ask you to temper your judgement.
Issues occurs also when printing monomaterial parts. Which I try to do 95% of the time.
Monomaterial printing don't need "tool head offset calibration".
Dock calibration is good here and is less crucial for monomaterial printing. I never noticed a badly locked tool.
Tool falling on the plate is because of huge layer shifting bringing the tool mount going on the far right of the rail. That unlocks the tool. At my surprise there is no safety against that.
RE: As of 6.4.0, the XL still crashes toolheads into one another. It is inexcusable.
Vous êtes vraiment le dieu de l impression, par contre visiblement vous avez échappé a l éducation.
Bref. Je peux vous assurer que cette version a de nombreux bog et oui il es possible que certains des problèmes soient humains.
Un exemple très représentatif qui n'a absolument rien à voir avec des réglages. Effectué la calibration du pas a pas en phase et vous obtiendrez des résultats catastrophiques par rapport a la version précédente.
RE: As of 6.4.0, the XL still crashes toolheads into one another. It is inexcusable.
Vous êtes vraiment le dieu de l impression, par contre visiblement vous avez échappé a l éducation.
Bref. Je peux vous assurer que cette version a de nombreux bog et oui il es possible que certains des problèmes soient humains.
Un exemple très représentatif qui n'a absolument rien à voir avec des réglages. Effectué la calibration du pas a pas en phase et vous obtiendrez des résultats catastrophiques par rapport a la version précédente.
Well my poor upbringing somehow allows me to print on a daily basis without issue.
This leads me to understand that the issue that you are having is not happening to everyone.
So I'm not sure what these bugs are. It seems to be working fine.
RE: As of 6.4.0, the XL still crashes toolheads into one another. It is inexcusable.
Is it possible the problems were having isn't really related to the firmware, but just the age/use of the machine...
I have 243 days on my machine...
Tool 1, 22.8km, 27579 tool changes
Tool 2, 8.5km, 19192 tool changes
Tool 3, 2.9km, 11335 tool changes
Tool 4, 5.9km, 8747 tool changes
Tool 5, 1.6km, 3279 tool changes
Perhaps the issue is actually the tool-head connector which adds anomalies such as: https://forum.prusa3d.com/forum/original-prusa-xl-tool-changer-hardware-firmware-and-software-help/toolhead-led-flickering/#post-778393
RE: As of 6.4.0, the XL still crashes toolheads into one another. It is inexcusable.
Very early XL, factory built. Idlers all replaced. I replaced all five extruder cable connectors with the taller version. Otherwise stock standard. Have been printing a while after cable connectors on FW 6.2.6. No problems.
Last night upgraded to fw 6.4.0. Even during calibration there was head crash confusion. This was after the tool head offset calibration.
Now back on 6.2.6, after calibration, print runs smoothly.
RE: As of 6.4.0, the XL still crashes toolheads into one another. It is inexcusable.
When you say calibrating are you referring to the homing at the start of a print?
RE: As of 6.4.0, the XL still crashes toolheads into one another. It is inexcusable.
This was during calibration, still in process with calibration. Print not yet started.
TH2 attempted to return to dock and made harsh noises, finally managed to dock. Then trying to undock TH1, it made some more harsh noises, unable to remove from dock. The gantry then stopped in TH1 loading position.
An important note, perhaps, is that I tried to early terminate the gearbox calibration - perhaps I took a wrong turn here.
After loading fw 6.2.6 all works, I completed the full calibration and just completed a small test print.
When you say calibrating are you referring to the homing at the start of a print?
RE: As of 6.4.0, the XL still crashes toolheads into one another. It is inexcusable.
This was during calibration, still in process with calibration. Print not yet started.
TH2 attempted to return to dock and made harsh noises, finally managed to dock. Then trying to undock TH1, it made some more harsh noises, unable to remove from dock. The gantry then stopped in TH1 loading position.
An important note, perhaps, is that I tried to early terminate the gearbox calibration - perhaps I took a wrong turn here.
After loading fw 6.2.6 all works, I completed the full calibration and just completed a small test print.
When you say calibrating are you referring to the homing at the start of a print?
Out of curiosity why did you recalibrate? Updating the firmware doesn't require you to recalibrate.
RE: As of 6.4.0, the XL still crashes toolheads into one another. It is inexcusable.
Recalibration after firmware update: I do this as a matter of course on all calibrations except docking [which is a pain]. It makes sense if you consider a firmware upgrade as a change to an embedded software - it changes the behaviour of the hardware. An obvious example is when input shaping became part of the firmware - you have to calibrate to get the effect.
The other reason I did it now was because I changed the cable connectors (dwarf board?) in December, on the extruders from the original smaller to now, the taller more rigid versions. Before this change I only had one toolhead working - the rest failed because of cable connector failure. So I am still in the "Check the tool head offset calibration" because this failed on me after the cable changes.
RE: As of 6.4.0, the XL still crashes toolheads into one another. It is inexcusable.
Recalibration after firmware update: I do this as a matter of course on all calibrations except docking [which is a pain]. It makes sense if you consider a firmware upgrade as a change to an embedded software - it changes the behaviour of the hardware. An obvious example is when input shaping became part of the firmware - you have to calibrate to get the effect.
The other reason I did it now was because I changed the cable connectors (dwarf board?) in December, on the extruders from the original smaller to now, the taller more rigid versions. Before this change I only had one toolhead working - the rest failed because of cable connector failure. So I am still in the "Check the tool head offset calibration" because this failed on me after the cable changes.
I have never recalibrated except for when I changed nozzles. 100% not necessary after a firmware update. The locations of the docks and the nozzle offset didn't change.
I suspect your crashes were related to stopping mid calibration. Likely letting the printer re-home x and y would have got it back to normal.
The Nextruder gearbox calibration is only necessary if you've disassembled the Nextruder gearbox.
I think your problems might be self induced.
RE: As of 6.4.0, the XL still crashes toolheads into one another. It is inexcusable.
Quite possible. Thanks.
RE: As of 6.4.0, the XL still crashes toolheads into one another. It is inexcusable.
Recalibration after firmware update: I do this as a matter of course on all calibrations except docking [which is a pain]. It makes sense if you consider a firmware upgrade as a change to an embedded software - it changes the behaviour of the hardware. An obvious example is when input shaping became part of the firmware - you have to calibrate to get the effect.
The other reason I did it now was because I changed the cable connectors (dwarf board?) in December, on the extruders from the original smaller to now, the taller more rigid versions. Before this change I only had one toolhead working - the rest failed because of cable connector failure. So I am still in the "Check the tool head offset calibration" because this failed on me after the cable changes.
I have never recalibrated except for when I changed nozzles. 100% not necessary after a firmware update. The locations of the docks and the nozzle offset didn't change.
I suspect your crashes were related to stopping mid calibration. Likely letting the printer re-home x and y would have got it back to normal.
The Nextruder gearbox calibration is only necessary if you've disassembled the Nextruder gearbox.
I think your problems might be self induced.
That is because you are unable to acknowledge that others may have different experiences than you, and that those experiences may stem from reasons you do not understand. Your entire gimmick is to enter a thread, blame the user, and call any attempts at reasonable technical discussion or criticism "trolling".
Thank you for your contributions.
RE: As of 6.4.0, the XL still crashes toolheads into one another. It is inexcusable.
Recalibration after firmware update: I do this as a matter of course on all calibrations except docking [which is a pain]. It makes sense if you consider a firmware upgrade as a change to an embedded software - it changes the behaviour of the hardware. An obvious example is when input shaping became part of the firmware - you have to calibrate to get the effect.
The other reason I did it now was because I changed the cable connectors (dwarf board?) in December, on the extruders from the original smaller to now, the taller more rigid versions. Before this change I only had one toolhead working - the rest failed because of cable connector failure. So I am still in the "Check the tool head offset calibration" because this failed on me after the cable changes.
I have never recalibrated except for when I changed nozzles. 100% not necessary after a firmware update. The locations of the docks and the nozzle offset didn't change.
I suspect your crashes were related to stopping mid calibration. Likely letting the printer re-home x and y would have got it back to normal.
The Nextruder gearbox calibration is only necessary if you've disassembled the Nextruder gearbox.
I think your problems might be self induced.
That is because you are unable to acknowledge that others may have different experiences than you, and that those experiences may stem from reasons you do not understand. Your entire gimmick is to enter a thread, blame the user, and call any attempts at reasonable technical discussion or criticism "trolling".
Thank you for your contributions.
No offense, but in response you seem to be unable to acknowledge that it might be user error, and nothing is wrong with the machine or the firmware.
In the past week I've completed 2 54 hour long prints with hundreds of tool changes. I can't see there being a major problem with the firmware. Are there some bugs, well I can't be for sure, but I haven't run into them yet.
I suspect user error. What specifically, it's hard to say, but just coming on to the forum and just bashing, not making any real effort to figure out what night he wrong is completely useless, and it fits the definition of troll perfectly.
I'm sorry if you find it offensive, but I call what I see. There's is absolutely nothing positive that can come from bashing.
RE: As of 6.4.0, the XL still crashes toolheads into one another. It is inexcusable.
"My own N=1 experience shows otherwise, therefore I am correct".
Sir, you are not correct. You simply have a different outcome for the same experiment, as is to be expected by anyone with a very basic understanding of statistics. This is why some Jeeps last 300,000 miles but most do not. I am quite fond of Prusa, but certainly not fond enough to deny that these problems exist, are experienced by me and many others, and extend well beyond what is reasonably regarded as user error. In theory, everything is user error. Since it's open source, we should just go fix the firmware, right? Someone probably could.
You may, if you wish, refer to that as trolling. You would be wrong, as you have been every time you come into these threads to say "nuh uh, mine works fine", but that is very unlikely to stop you, so please continue if you like.
RE: As of 6.4.0, the XL still crashes toolheads into one another. It is inexcusable.
"My own N=1 experience shows otherwise, therefore I am correct".
Sir, you are not correct. You simply have a different outcome for the same experiment, as is to be expected by anyone with a very basic understanding of statistics. This is why some Jeeps last 300,000 miles but most do not. I am quite fond of Prusa, but certainly not fond enough to deny that these problems exist, are experienced by me and many others, and extend well beyond what is reasonably regarded as user error. In theory, everything is user error. Since it's open source, we should just go fix the firmware, right? Someone probably could.
You may, if you wish, refer to that as trolling. You would be wrong, as you have been every time you come into these threads to say "nuh uh, mine works fine", but that is very unlikely to stop you, so please continue if you like.
Who said anything about fixing the firmware? You say many others, what's your sample size? Statistically what is many? See it's easy to play the numbers game.
Anyways, I have no issue with someone having a problem and trying to diagnose. Maybe you need to go back to the first post and reread it to understand where my troll comment came from ......
RE: As of 6.4.0, the XL still crashes toolheads into one another. It is inexcusable.
No, sir, you cannot play the numbers game. It is very, very clear that you are one person and those of us having trouble comprise a number larger than one person. I do not really feel like giving you an intro to stats course here, so I encourage you to pursue higher education. I said "in theory", I never posited that anyone suggested fixing the firmware. It was an intentionally hyperbolic example of something that could be considered user error, but could not reasonably be considered such. Please add a rhetoric course to your curriculum.
I will not be re-reading anything you post. In fact, I don't think I'll be reading your posts in the first place.
RE: As of 6.4.0, the XL still crashes toolheads into one another. It is inexcusable.
No, sir, you cannot play the numbers game. It is very, very clear that you are one person and those of us having trouble comprise a number larger than one person. I do not really feel like giving you an intro to stats course here, so I encourage you to pursue higher education. I said "in theory", I never posited that anyone suggested fixing the firmware. It was an intentionally hyperbolic example of something that could be considered user error, but could not reasonably be considered such. Please add a rhetoric course to your curriculum.
I will not be re-reading anything you post. In fact, I don't think I'll be reading your posts in the first place.
🤣. How many XL's have been sold, how many are having problems.
When you have those numbers I'll listen to your argument.
RE: As of 6.4.0, the XL still crashes toolheads into one another. It is inexcusable.
Closely examining your pictures I would be willing to bet you have bed adhesion/warping issues. Most likely the print head crashed into your parts due them warping on the bed. This crash caused the motors to skip steps leading to it losing position, hence your diagnosis of it trying to dock in the wrong spot. The print head would not dock except at the end of the print on a single material print. I don't see anything but PCCF in your print.
The top of the completed parts in your picture are wavy, which means that the part was warped when completing the to layer.
You can also clearly see that the bed had not been cleaned prior to this print since there is are imprints from previous prints on it.
Did you actually witness what happened or did you just come back to find the printer this way? Can you put a camera on it so that we can see what actually happens since you say it's repeatable? It might help solve the problem.
My guess is that the print head in crashing into the print due to adhesion issues.
6.4.0 Firmware for Prusa XL
RE: 6.4.0 Firmware for Prusa XL
Hello.
Based on your feedback and the reports we’ve received, we’ve decided to withdraw firmware version 6.4.0 for the Original Prusa XL. The main issues are related to Phase Stepping calibration.We are currently working on a fix, which should be available in the coming weeks.
If you are experiencing Phase Stepping issues (noise), layer shifts, or random tool crashes, please downgrade to the latest stable firmware version, 6.2.6.
These issues affect only the Original Prusa XL. If you’re running firmware 6.4.0 on your MK4 or CORE One, there is no need to downgrade.
RE: As of 6.4.0, the XL still crashes toolheads into one another. It is inexcusable.
lol. It's user error, of course.