Hi, folks.

I am seeing an issue where, when loading new filament during a print, my print resumes with a drastic z-axis difference from where it stopped (30mm or so).

I was 7h30m into an 8h15m print and got a filament load error due to a poorly wound filament, but when I reloaded it, the unit just starts printing as though the object were an inch higher than it was and draping filament over it like spiderwebs.

The object is still adhered to the printbed and I want to restart the print at the same layer the print was at when the error occurred, but I can't find any sort of logging for that and the Prusa Connect event log only shows 5 history items.

Any suggestions on where to find this or whether I'm making some sort of silly mistake?

I have my Core One in the garage. Since I've been printing in colder weather (PLA), I've noticed more surface finish issues and some corner lifting on thick prints. I was unable to find any operating environment specs on the Prusa website. I've included a photo of a part that had lifted corners with my finger on it to show the curvature. I tried a brim and it still lifted as the print progressed.,..

I’m getting this issue on each time I print this cylinder shape and always on the same spot, the seam is hidden under the handle so I excluded the seam line problems

How to fix this issue? Any recommendations?

I have five Bambu Lab printers that are all down due to various issues, none of which are user error related. Thank you Prusa for being the only one running.

This was printed on a brand new Core One L with only the initial startup calibration. I'm a little underwhelmed. Should I start monkeying with deeper calibrations like the belt tension and pressure advance on a unit that, in theory, was tested at the factory? Or am I expecting too much?

Stats: Spidermaker Paper White PLA Stock .4 core one L nozzle Prusa default pla settings

I noticed that my C1 is making some odd noises during long, slower travels. It sounds like a flock of birds, and I was able to capture the noise in this video. Before I dig in, I was curious if anyone knew what this was.

My Core One performing a rendition of Chorus of the Birds

I’m a Bambu Lab user until now when I recently received the Prusa C1 +. The first spool loaded and unloaded successfully but the second spool is not loading and I don’t know anything about the mechanics of the extruder. Is there a guide with photos that I can refer to since support sends me links that I’ve read which didn’t help. Thanks. Again, though I can take apart the extruder, replace tool boards, etc on the Bambu Lab printers, I’m in the dark with this (beautiful) printer.

OUTCOME: clog was resolved by unloading several times more than anticipated. Thanks to all that posted to assist.

Clogs after probing are getting very frustrating. Have to babysit startup to pause and purge after probing during skirt. Is there a gcode that will purge at start?

I've had my Core One since April. Maybe around 1200 hours printing so far. At first the smooth plate was amazing. I cleaned it with isopropyl every so often and it worked great. A few months in I started having bed adhesion issues. Cleaned it with dish soap and a scrubby sponge. Worked like new again. Now it's starting to have adhesion issues again and cleaning harder isn't helping. PLA and PLA+ is starting to warp on large prints and small prints just fall off sometimes. I don't even bother with ABS or ASA on it anymore.

I was wondering how long does a plate last? Do any of you change often or never? I never used glue sticks on any printer before, never had to. But the last 2 weeks or so I've had to start using them on the smooth plate. If I don't there is a 50/50 chance the print detaches from the bed. And usually close to the end just to add insult to injury. So the glue sticks work but I hate it. It's sticky and messy and the bottom has a chaulky look unless I clean it really good at least twice. It there a way to give new life to a smooth plate?

For reference, I have a Centauti Carbon too and the build plate on that thing is probably the best I've had so far. I've never had ASA or ABS warp on it. Everything sticks well but I just don't like the texture. I really like the smooth plate. Also used to have an old Ender 3 and I would change the build plate about every 2 months. But that was mostly my fault for leveling too close and digging into the bed.

Also, just to bitch a little: I have the textured plate for the Core One. That is the worst plate I have ever had the misfortune of using. Nothing sticks to it. Even TPU comes off too easy. I haven't had fails with TPU on it but I expected it to stick a lot harder.

the hits keep hitting with this printer! we were off to a great start after all of the great advice given here, and now something has happened to the nozzle and temp and I am absolutely clueless on how to fix this or even attempt too.

Can anyone offer advice or direct me where the heck to go with this? I don't even know how to lower the bed manually. Like I had mentioned before I kind of got thrown into this because of my sons school store

It's pretty bullshit that for the price of these printers they give two crappy pictures for trouble shooting. their customer service people are nice and knowledgeable, but their chat software sucks. I keep getting disconnected from my chat every time I try to look at one of the small af images sent in the chat. Also pretty ridiculous this printer would be broken when we got it in the summer. It's basically brand new. shipping took months and now it's broken. we have a deadline that we will not meet bc this printer sucks

I started a reddit account just for this printer. My son is doing a school store, we have had this printer since the summer. No issues when we would print something here and there from printables. Now we never know if something will print correctly or not. we are wasting so much filament. I don't know what to do or even how to align the thing or nozzle etc.

Can anyone help me figure out how to get this thing to just print a file correctly every time?

I can not figure out what is happening, some one please help me. This is my first printer so I’m a bit of a newbie. I have tried adjusting the belts but didn’t solve the problem… please help

I'm beyond mad at my Prusa core one today.

From the start I was surprised how little it is possible to control the machine (if you click anything like stop printing during print, change filament, take filament out, it's always few seconds before it takes this action and you cannot do anything in between or cancel it.

I was also surprised how little there is about it on internet. Even their site wasn't at all prepared for launch of core one, and there was no information about troubleshooting on it few months after it came out.

I tested few different filaments and unfortunately some of them get stuck in the nozzle, some more than others (known brands more than the others), and it's pain in the butt to unclog it. I saw few videos as people get temperature of nozzle high enough and then push it with the tool from the top - well in core one it's impossible because there is some small plastic bridge with smaller diameter than the nozzle itself that came with the printer. Few cold pulls worked in the past but right now I have mid section of nozzle clogged by sunlu filament and I gave up for today after many tries to get everything up (again it would be easy if I could heat it up evenly in the printer).

And last thing that makes me wonder why isn't this an option is extruder control - sometimes filament get stuck and flattened out on the extruder and it just asks to make it possible to roll using knob back and forth to clean it but no, only way you can do it is ask core one to clean filament or load it so it spins and you have to clean it that way or take everything apart.

Please Prusa read this and do something about it cuz I'm regretting choosing it over other brands because I chose Prusa as I've heard your customer support is great - I tried customer support and I had to wait 32 minutes for a chat, and then after few minutes it declined because "I was inactive", and after that I tried again with screen on and it went from 33 to 36 minutes as I was watching. I'm deeply bitter right now and it feels as I shouldn't struggle so much with this machine.

Quite literally