My X1C came with the original textured PEI plate for PLA-ABS-PETG. After a couple of weeks with around 100 hours of printing a number of projects, I suddenly began having the “Build plate marker not detected.” error, even though the plate was there. Upon closer inspection, the printed code on the plate was simply getting rubbed off from handling and scraping, and was becoming unreadable. Not the camera lens, or other things I’ve read about, but the plate itself was too worn to read properly.
I found the right ArUco code (a 4x4 “5”) and printed with my brother P-touch tape printer. Having cut out the teeny 5mm square and applying it over the existing worn marking, the printer is now happily printing again.
(Note, there are TWO codes you’ll find researching this. The older code is an ArUco 4x4 “3”, and the newer one is the ArUco 4x4 “5”. This link will take you to the updated version: Printables ).
Just a word of warning… the code on my PEI build plate lasted much longer but at some point, the prints weren’t sticking very well to the bed so I did one of the recommendations to sand the surface with 600 (?) grit sandpaper. It does work! but I wasn’t paying attention and sanded the QR code area too and now I get the “Build plate marker not detected.” error. SO if you sand, make sure you avoid that part of the plate because it doesn’t need sanding because nothing is ever printed there.
My X1C is 2 weeks old. From day one, I got the “build plate market not detected” on just one side of the textured PEI plate. Well, sometimes it worked, sometimes not. By chance, I had ordered a second textured PEI plate and for the life of me cannot see what is wrong, all the ArUco codes look the same. Anyway, I found the correct ArUci code online somewhere. Sized it and printed it on paper, cut it out and stuck it over the original one and sealed it with nail varnish. Now the printer detects it fine. I really cannot justify buying a P-touch printer. I am wondering if I could use a 0.2mm hotend, print the 1st layer in black and the next layer in white with the ArUco symbol? It just an idea, maybe someone has an alternative idea on how to fix this little niggle.
Maybe I should, but I found a fix. At least until I accidently use the scraper tool on it. But yes, I will raise a ticket. I’m interested to see how their support dept reacts.
Photocopy it, stick it in position, and coat it with a little clear nail polish, or maybe a thin layer of some UV-cure clear resin?
Somebody should make a little cottage industry of printing TPU stampers with that code on them. Make a white square in the right spot, then stamp the pattern in black ink over it. Easy to refresh, as will be necessary occasionally.
Well it works. Here is the Textured plate ArUci code printed on X1C. Used 0.2mm hotend using 0.08mm HQ mode. Labels are 6x6x0.15mm. Printed 9 labels as it only took 2 minutes longer than one label. Pleasantly surprised at the quality. 7 out of 9 are perfect. I tested one and it works fine.
Well, that’s cool! I keep catching mine with the nylon-blade scraper I use on the build plate. I haven’t procured a 0.2mm nozzle yet, but some small things look like they really benefit from it.
Are you considering posting your design somewhere?
Not sure how to post the design yet (too new to this). I tried to upload to here, but it’s not allowed. I have the Fusion 360 and Bambu project saved. I will look into what to do.
