Is there any documentation about the fires? How did you find out about them?
Comment on Did Bambu Lab change something on the A1 recently?
paf@jlai.lu 1 week agoMake sure your printer is not on something flammable, have a smoke detector (are common practises for safety). Since the problem is about power draw, and heated bed is what needs the most i got a cool build plate so i’m now printing at 30°c instead or 60°c. Obviously, some could also replace the cheap component bambou has put in but i’m not confident enough with my electric skills.
About the issue, i recall that quite a few A1 got on fire. Bambu denied there was an issue and said it was a user fault. Some guys pointed out a weak component that would just barely support the maximum load printer can use and ranked it as unsafe. No recalls as no issues for Bambu
akilou@sh.itjust.works 1 week ago
paf@jlai.lu 6 days ago
Various report of users and a video that explained the issue. Don’t have sources now, it has been a few months
GreenKnight23@lemmy.world 1 week ago
Make sure your printer is not on something flammable
I’m currently building an enclosure for mine that is double layered with backer board (concrete) and drywall (high inflammability).
also adding in a smoke detector that can cut off the power with a backup thermistor that when triggered will cut off the power and set off an even louder alarm.
my hope is to have it sealed air tight enough that even if a fire were to start, it would quickly run out of oxygen to burn. I may lose the printer, but hopefully I won’t lose my house.
my preference would have been to keep my printing to an exterior building but that’s not possible right now.
I share this in hopes someone might get some inspiration and protect themselves from the inevitable fire that starts from the hobby.
paf@jlai.lu 6 days ago
Be careful if you seal it completely, electronics won’t be able to cool down properly, it needs some fresh air.
GreenKnight23@lemmy.world 6 days ago
thanks for the input. I’m going to be moving the controller outside the enclosure but there’s still the motors and hot end to contend with.
I suppose I could monitor interior temps and activate the venting/filter when it reaches temp. would be tricky though, because then I would risk feeding a fire and allowing it to escape should one start.
paf@jlai.lu 6 days ago
Mainboard and psu are the ones to take care the most but keep in mind that not all filament like to be printed in fully closed enclosure (without proper ventilation), PLA for exemple.
One way to monitor and secure my printer is to use smart devices. I have home assistant running at home, my printer has an integration available and i can recover several printer informations like status, temps, printing time… and i have several smart devices (mostly zigbee) which i use to monitor and apply automation based on scenarios. (temperature sensor, smoke detector, camera, light, plug to power on/off printer). I can then create automation like “when smoke detector has detected smoke, turn off printer, then send picture to my phone and broadcast a message in the house…”. I have maybe 5 different automation running for the printer but the possibilities are endless.
Bluewing@lemmy.world 1 week ago
As I know from reading various outside sources and have heard, there have been NO actual fires reported and verified caused by the NTC failure in question. Just some scorch marks and a bit of localized melting.
This does not mean that a fire is impossible, but that you would need to have an exceptionally bad day for the fire resistant plastic of the housing and board to catch fire.