So I ran a print. Started a new print and print would not run it. I checked, reset, reseated cables, did not work. So I reset back to factory same issue. I then ordered parts a need toolhead cable and TH-Board. Installed new parts, I still have same issue. What I noticed if I move the toolhead all the way back to left corner then run a click on home it will bump to right corner then go back to middle and home no issues. Then I tried to run a calibration from printer, or handy app, or Bambu Studio. The printer starts all go , then goes to right corner to bump home and…nothing. The printer just stops, the calibration g-code goes away and the printer goes back to ready to start a print. This is the exact same issue I had before I replaced the TH-board and ToolHead cable. So now I am at square one. I am at a loss on what this could be. Also, one of the first things I tried was to downgrade software, did not work, then I upgrade software again same issues. So, I also ejected SD Card and loaded a new SD Card formatted it in the printer and power cycled the printer etc(Meaning I went through all steps previously explained) and same issue. Has anyone had this issue or very similar? I only had this printer for like 7 months. Not a single issue up until last week. I have submitted a ticket and they are sending me TH-Board and cable. But I could not wait so I ordered and received the parts delivered to me yesterday and worked all night installing and testing only to get same issue. No error codes either. This video is basically what happens when I run any command. Notice the toolhead already in right corner and I run a home does not work. BUT if I move toolhead back to back left position and power cycle the printer it Will Home! I cant load a video here so I linked to Youtube: https://youtu.be/o21eiRftT2o?si=GsJ0Or9_03odm8t2
After watching the video, it appears like the commands are being accepted by the printer. When it goes to the front corner like that, it is running the motor and looking for a higher current reading, that lets it know it hit the front, then it moves to the side to find the very corner. Yours stops at the first part of that. It isn’t seeing the higher current is my guess. This could be the motor or the mc board. I don’t know how to verify which, I would suspect the board, but it might help you and support to get to the culprit faster.
Thank you, I felt the same. Like it wanted to get a signal to continue but the Main Board didn’t send it. I will say I can get the printer to home if I turn off printer, then move the toolhead all the way back to the left corner. Make sure it’s unplugged for about 5 mins., then turn it back on and press the home option it works fine, moving the bed up and homing. So I am not clear what’s happening.
My P1S is doing the same thing. But, mine comes to the front right, then to the center of the plate, taps the plate a few times, then goes home and stops. With the calibration sitting at 24%. I am at a loss, haven’t had this a year yet. What would be my next step. Ahhhhhhhhhhhhhhhhhhhhhhh
I’d take a deep breath and put in a ticket. Throwing parts at it won’t fix it, it’ll just mean you have newer unbroken parts.
Take pics or video, open a ticket and include them. Support may ask you to document things you’ve already done. Don’t get frustrated with them, just state what you know clearly and as cleanly as you can.
It’ll get fixed.
So…did anyone end up fixing the problem and what was the solution? I have been going through the same exact thing. Calibration gets stuck at 24%. I took the case off, scraped and pressurized air the guts, replace the hotend, then replaced the Complete Hotend assembly, etc. Crossed my fingers on the last one, but when I turned on my P1S it was Groundhog Day. Thank you for the ticket suggestion. I submitted a tickets earlier tonight. I am curious what the outcome was? I use 3D printing as a work tool and upgraded to the P1S from the A1Mini (still rockin) and it crapped out on me after a few months. I was tempted to buy one of the new fancy Bambu printers with multiple nozzles, etc., but now I am questioning the brand all together and hesitate to make the investment.
looks like there is at least 1 other thread on a similar theme: (edit: this is actually a P1P)
where this was mentioned as the solution:
SOLUTION: One of the cables (I think my toolhead cable) was not seated properly in the toolhead circuit board. I just unplugged all my cables on the toolhead circuit board and made sure all of them are properly plugged in, and it started working properly.
But if as suggested it is failing at a certain check point there could be multiple issues that will give the same fail point.
and this was on a facebook post and also relates to toolhead cable.
Bambu Lab Printers – H2C, H2D, X2D, X1C, P1S & More ·
Ryan S
· May 22 ·
Why does P1S printer calibration get stuck at 24%?
Doing a repair in a p1s and it gets stuck at 24% on calibration and can’t figure out why
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Ryan S
Author
Figured out the Client tried to do the repair themselves before calling my company and ripped the tool head ribbon cable