I would return the printer. I constantly have issues with the four BL printers I have had in the last six months or you will be dealing with multiple issues all the time.
False. I solved changing the USB-C cable. I do agree the overall quality could be improved, though.
Good luck to you. In my experience, it is absolutely true.
Check the USB C connection below…Needs to be seated allll the way. The bottom housing with motor cables clicks then slides up into the USBC…youll know its seated correctly when you dont see the silver.
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buenas,
tengo un problema al hacer la calibración de ejes, cuando se esta calibrando el eje Z y se dispone a llegar al pinto mas alto no frena y hace que los motores se esten forzando y no llega a home nunca
Alguien tiene una solucion?
Gracias
THANK YOU! i feel like an idiot
Another one!
Just mounted my Bambu printer and it’s been a nightmare so far. I took out the black blocks and made sure the usb is connected, I will see a tiny and thin chrome part and I really pushed hard, does it really go all the way?
- First full calibration gave me a Z-axis error.
- Tried a test print with bed calibration — toolhead started wiping the nozzle all over the bed erratically
- Updated firmware (no issues), but the behavior persisted.
- Ran calibration again through the app and the toolhead crashed into the bed and damaged it (video attached).
- Y-axis endstop sounds off, and every reboot shows the Wi-Fi Assistant, even though I’m already logged in.
Found the issue. I hope this help anyone!
Make sure the screws under the bed are fully tightened or the bed will hit against that cuausing a early endstop!!
Wow! Thank you, weird that’s not on the set up instructions.
Received my A1 last night. I finally decided to see what is the hype about how easy the Bambu printers are in setup. Putting the A! Together was not hard. Then comes the Z axis calibration issue.
Yes I removed the black plastic shipping protector. I moved all axis by hand. No obstruction.
The Z axis moved up and down maybe 20 mm. Then it moved all the way up and I hear the belt skipping. It then came down 20mm and stopped. Calibration failed. Over and over and over. I tried all the suggestions. No luck. I am on latest firmware the screen said. No update.
So much for plug and play. I could have build a working machine by now.
Got a ticket to tech support and nothing except an automated reply so far.
Talking to myself but I am hoping this can help others too.
My A1 is now going through the calibration process.
The problem? The USB-C connector on the bottom. It is too short and will not fully seat as it is from the factory. I took it out of the plastic housing and checked. It seated a lot deeper without the housing. Especially when I tighten the screw to hold down the housing, the USB connector is pulled out a bit.
So I wound up trimming the rubber skirt on the USB-C connector so it will sit a little further forward in the housing.
Voila. It worked.
Sooo… did anyone have this happen after changing over the hotend + cables? 
I finally got everything back together, went to home it and 
BAM this treacherous error arose.
So, like anyone with common sense does- they quickly skim the wiki, then backtrack checking cable from sensor to MB. (100% fine of course it wasn’t even touched during the hotend change).
The only thing I know is 100% different, is that I’ve change the nozzle to a 2mm (experiment for a friends print) and I am yet to update Bambu Studio
This is literally where I am at but I’ve replaced the entire hot end and also the leads on the extruder fan snapped so replaced that entire part too. I’ve dug out the USB-c cable too as you mentioned it worked for you. And nope. Pulling my hair out its beyond frustrating! You’re the only person whose described the exact uhhh, symptom?
I just want to cry at this point, this has been my only hyperfixation outlet this year and the first time it f&%ks up I do all the things, and the things aint thinging 
Random question from a new user - most models on the Maker world seem to use PLA. If I want to print a model using PTEG instead - maybe because I want something sturdier or I only have the color I need in PTEG - can I assume that my A1 will adjust the necessary settings to account for the filament difference, or are there setting changes that the community would recommend?
Welcome to the forum.
No, this is not a safe assumption. The model needs to be resliced for PTEG otherwise you will run into problems as the nozzle temperature and other setting will be incorrect.
Download the .3mf file from Makerworld, switch the filament from PLA to PTEG and reslice. Send to the printer.
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Sorry to hear you still have issue. After I fixed the USB-C connection the printer has been working with no problem for 3 days now. You did not say if you have done anything to make sure the USB-C connector is seated deep enough. Maybe you can try that. I have tried many times until I modified the rubber housing on the USB-C connector by shaving off the flange at the end. Then the connector is able to move forward enough to engage the socket.