I have an X1C with about 500 hours on it. This morning I decided to run a flow dynamics calibration on polymaker Matte PLA Black. It failed. I tried again. It failed. Tried different plates. It still failed. I then tried some of my other filaments with no luck still. I finally decided to look at the screen and I get the error “The horizontal laser is not lit. Please check if it’s covered or hardware connection is normal.
[0c00-0200-0001-0001 173602]” as shown
So I started messing with a few things. Changing the nozzle just because, cleaning the lidar lens, and blowing out the printer and head. Still nothing. So I decided to completely take out the micro lidar system (after looking the the connections which were fine) and putting it back in. Anddd nothing. At this point. Im not sure what else to try. I got the printer a little less than a month and a half ago and hope the lidar isn’t broken already. Id be willing to get a new one if I have to. But if anyone has any ideas I’m definitely willing to try them!
I think the problem might be that the lidar doesn’t work well for translucent or black filaments:
Check this:
So I mean it could just be a residual message from your attempt to calibrate the black, but not sure how that relates to then having issues with other colors or your overall problem…
I am afraid that filaments, plates or dirty lensed never triggered red errors for me (since June 2023). I am afraid that you are likely to need a ticket with support for this.
And be prepared for a potentially lengthy and challenging troubleshooting ordeal. The printer should still work like a P series in the meantime though.
When opening the ticket, you may already supplement that with a camera vid of the laser (not) in operation (it is visible using a phone camera… if it lights.), the open front toolhead and maybe even the USB cable from the printhead into the printer.
Thanks for the response! And that’s kind of what I figured. But honestly, if I can just get another and replace it without having to contact support I would rather do that. I’ve had to contact support once before and it was absolutely miserable. So really. Im just looking to see if anyone thinks replacing it would fix it or if it may be a greater problem.
Well, I’ve tried about 12 other filaments and 4 different build plates. I’ve taken the whole lidar off and apart and tested continuity on its connectors. So I’ve really narrowed it down to hardware
Finally, I had to replace the TH board. That is something that can not be done without support as it needs to be initialized by them after installation. That is where I got “lucky”. Just before starting the replacement, the mainboard blew. Another 3 months with support, but then I got a printer replacement unit under warranty.
So best to get started with support early. It may be frustrating and long winded. But the LIDAR is something you’ll most likely need them with.
Try to capture the Laser with your phones camera. If you can not see it in the video, it is definitely the hardware. In my case, it was actually still working. It was just trying to do the calibration 10mm off …
Yes, it looks like it is projecting a single line in the right place. Mine did project two perpendicular lines subsequently but it was off by 10mm.
By now, support have a bit of an overview of failure cases (at the time, I was not only one affected) so they should be able to diagnose much better than us. Bambu is fairly closed off on the LIDAR.
I contacted support but in mean time, because I don’t expect them to respond anytime soon I ordered a new th board and lidar. I did already take the lidar off and apart and tested for continuity. All wires have connection and don’t seem to short anywhere. I also tested the board to the best of my ability without a print and didn’t see or find anything that seemed off. I didn’t touch the interface board as I don’t think that wouldnt cause lidar issues but im not sure if it could. I got the set so I’ll be getting a new interface board anyways. It took support 14 days to get back to me about a tangled spool last month. So I figured worse case they get back to me earlier and I just return the lidar and board or if they reimburse me instead.
At this point I’m just going to keep throwing things at the wall to see if anything will stick. Rn I’m removing any mod atm, even if it would be impossible to cause the issue. Im also going to put on the stock tool head cover. I’m willing to try any ideas anyone has!
Unfortunately, I am not enough into electronics to advise on that. But, depending on when you purchased your printer, I’d double check that the dual red laser and v9 TH board are what is currently in your printer. Last year, Bambu still had several versions around which were mutually incompatible.
Apart from that and waiting for Godot/Support, there are just the usual straws: Firmware reset and SD card replacement…
A quick lidar replacement did the trick. Just glued them down and I pass calibration. Though, I used my phone camera again and it seems nothing changed. I matched the videos and it seems almost identical. So either it wasn’t receiving data because of the cables for some reason. Or it was just off center enough to mess with it. Maybe something else, but I’m glad it was just that haha. Thank you for the help!
