A few layers into a print, my P1s jammed itself into the bed, twice, breaking off the nozzle. The link is to a bit of video showing where it stops printing one of the objects, jumps to the front of the bed and slams down twice. I can’t figure out what happened here, any thoughts?
My first thought would be, have you changed any default GCODE?
My second thought is, is this your model, did you create the print profile?
A test.
- Create a new project in Bambu Studio
- Right-click the build plate within the prepare tab
- Add a Primitive cube
- Change the dimensions to something like 20x20x20
Print this, do you see the same outcome?
If not…
- Clone the cube 8 times
- Arrange the cubes in a 3 by 3 grid on the build plate
- The aim is to place one in a virtual grid with each cube in the centre of each grid square
Print this, do you see the same outcome?
I haven’t messed with the GCode, I’m not that brave yet lol
It’s not my model, however it is one I’ve printed before without it doing this. After changing out the nozzle, I re-sliced it and reprinted it, it has gone past that layer (I think, didn’t catch exactly what layer it was at, but the models are taller than when the issue occurred) without the issue repeating.
I’m thinking it’s just a fluke, but a broken nozzle and a torn up plate (I didn’t catch it right away) is a pricey fluke.
Given that data, my next suspicion would be file corruption due to the SD card having a read/write failure.
Just for safety sake, I would at the very minimum reformat the SDCard and for even better safety, buy a new one, preferably a high endurance card like the ones used in Dashcams. The Bambu Algorithm I’ve found is pretty dirty. There’s a strong evidence that it does not properly use he cards as it should. As an example, Bambu uses the SDCard as cache, that is really asking for trouble.
Here’s a search term on Amazon for suitable cards. Just note that the printer cannot access anything beyond 32GB. So don’t waste your money by purchasing any higher capacity.
https://www.amazon.com/s?k=high+endurance+32GB+MicroSd+card
This is one version that I use in all of my cameras. The one I currently have in my P1P is over 3 years old and has never given me any problems. Contrast that with the original card that came with the P1P and failed multiple times even after reformatting. I also tried other brands. I do enough Raspberry Pi and Camera work where I have a desk drawer full of these things.
Samsung is another trustworthy brand but I’ve been using Sandisk Flash products since they were known as SunDisk(1995). They own most of the patents in this field of NV Memory well before MicroSD cards were even a thing.
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Is the print profile you are using for the correct machine? You state that you have printed this model before, but were you using the same print profile at the time, or did you accidentally download a different print profile for a different machine?