hi. i’ve got an a1 which i bought in sep24.
has been working absolutely great until the other day.
now the nozzle touches bed cause it to not extrude correctly and leaves clumps on bed.
i have done the ‘SCREWS’ replaced nozzle, done updates, cheanged filament around, cleaned out print head, calibrations of all sorts.
but still the same. even so much as it does it with the pre-loaded files like ‘benchy’.
on the calibration settings where it prints the rectangles with numbers on, even they don’y come out great, so low infact you can’t read the numbers.
i’m at a loss as to what it could be now.
any help appreciated? tia.
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Try performing a manual “tramming” adjustment:
All done. Thanks for this and the advice. Unfortunately it’s still exactly the same.
First few levels are TOO close to bed, nozzle scrapes across printed filament.
Until it’s laid a few levels, then ‘seems’ to print ‘ok’.
Hmm… I’m just now learning what the advanced settings in the bambu lab software do, so I have no idea if there’s a setting to adjust that. I know I haven’t seen anything in the unit settings itself, but crazy idea here… How about resetting the unit to factory defaults right from the unit controls itself? Maybe software update set something wrong internally.
I have 5 A1s and the older one does this, also one which is about 4 months old has started doing it. Without the printer running obviously, see if there is play in where the gantry connects to the Z screw. This is my issue, the brass connectors I think have worn out. It can help raising the z height in the G code.
just to clarify you have looked at all 7 screws? Some people think they only need to check the 3 behind the hotend, they overlook the other 4 on the back side of that piece
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yes. have had the whole print head apart, and reassemnled it. all screws were tight anyway.
yes, have done a factory reset. then done ALL calibs’.
still same. was so dissapoinyed after this.
have done factory reset.
the ALL recalibs’.
still no change.
This definitely seems like a Bambu Lab trouble ticket - sounds like a faulty unit.
Got mine in November it started 30 days after I used it. Bought replacement parts twice now. Still does it. Submitted ticket when the hot end assymbly failed after 4 days, they essentially told me buy another one, so I bought the next one from Amazon at double the price so it would arrive within a week rather than 3+ like the last one. Still dragging. Still causing issues. Done all adjustments and calibrations. They won’t exchange it past 30 days, so I’m just stuck with a lemon. Their warrantee is a complete joke and setup perfectly to make sure you cannot exchange it. So my advice if you have ANY ISSUES with their printer within the first 30 days RETURN IMMEDDIATELY DO NOT LET THEM TALK YOU INTO TRYING TO REPAIR IT. It takes 14+ days for a replacement part to arrive in the states by the time you had an issue and attempted to resolve it you’ll be out of warrantee. I am now looking into buyer’s remorse laws to see I have any legal avenue since they aren’t based in my country. I’m so very disappointed.
I mean the fact they shipped me a replacement part that turned out to be defective (I know it was because I put it in very carfully and when the thermometor went out I took it off and found that the wire was LOOSE inside the insulation tubing and not actually attached to the tip. No kinks no other issue just the wire wasn’t firmly attached to the thermosil. But they wouldn’t even take that back or replace because it’s a “consumable” YEAH the first one was, I grant you, but when the replacement is dead after less than 3 prints I think it was defective. I really am so utter disappointed with this company after all the positive reviews, etc. Novemeber’s sale feels like they were offloading questionable goods, because I’m not alone in this, reddit is filled with people with the same issue from having bought it in November/December…