Had some fun time with a guy who tried to contact me while being ignored as it happened in a different forum…
Eventually I did take a look at his “Need help with my Bambu printer!” message bombardment…
Turned out DADDY tried to use the son’s P1S while the kid was away for some school camp…
Never used it and so it all went badly wrong.
After enough failed prints and print parts ending everywhere I had the great idea to check that the bed is still level…
What do you do if you find it quite a bit off ?
You start to turn those knobs below the plate to get things right…
A few big bangs later and no matter how those thumb screws were turned he gave up and tried to contact me LOL
One corner had the thumb screw almost falling off but was still too low, the others cranked all the way in and still no good…
The guy wanted advise on how to change the bed before his son comes back from camp to find out his printer is wrecked…
About an hour later it worked just fine again…
What did we do? We used LOGIC…
Told the guy to manually get the bed all the down and to check if all three screws go down all the way on those rods - the offending hit the bottom, the others did not…
Only at this stage the guy noticed how much debris was sitting down there…
Referred him to the Bambu Wiki so he could loosen the belt for the z-axis rods and manually crank them all down to then set the belt and do the DEFAULT tramming as per the Wiki…
Ok, I lied with the hour - I got to hear after one hour that is thinks he will make it through…
As it was 10 hours of timeshift we continued the next day with the fine trimming of the bed.
But even without it and just the usual bed levelling enabled for a print it already produced prints as planned.
The rest was just a matter of finding something in 0.4mm thickness and moving the head around to find the best position for those thumb screws.
Long story short - not always is the seemingly obvious problem the culprit you need to fix…
Must have been a bit of force involved to make the system fail this way…