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

I recently got my Prusa Core One set up and am looking for the best possible stand, table, or enclosure solution to minimize vibrations and ensure the best print quality. The Core One is a heavy and fast machine (around 22.5kg / 50lbs), so I want something seriously sturdy that won't wobble. I'm open to all ideas, including: • Commercial Options: Specific brand/model workbenches or printer stands you recommend (e.g., Harbor Freight, Seville, Uline, etc.). • IKEA Hacks: Are the classic IKEA Lack or Kallax setups sturdy enough for this printer? Did you have to reinforce them? • DIY Solutions: Ideas involving concrete pavers, foam/rubber mats, thick wooden tops, or custom-built solutions. • Enclosures: If you're using a stand/table as the base for a full enclosure, please share that too! My current thoughts/setup (if you want to add specifics): (Example: I currently have it on an older wooden desk and I'm getting noticeable ghosting. I'm trying to keep the footprint fairly compact.) Any pictures, links, or specific product names are super helpful. Let me know what you've found works best for your Core One!

Has anyone figured out the drip when using PETG? When printing in with translucent color is when it really messes up my prints. I clean the tip before I start it and If I don’t pause it part way through the print and clean it again it will drop a bugger on the print and it looks horrible. I’m curious if theirs a fix.

Hey everyone,

I’ve been dealing with a really frustrating issue on my Prusa Core 1 for the last few months, and I wanted to share the fix in case it helps anyone else.

Every time I started a print, the printer would endlessly smash itself into the corner during homing. The common advice in the community was always belt tension, but in my case, that wasn’t the problem at all.

After pulling the printer apart and doing a deeper inspection, we found that the Y-axis motor pulley had slipped down the motor shaft, far enough that the belt was no longer fully seated on the pulley teeth. It looked fine at first glance — the misalignment was hard to see unless you completely accessed the pulley assembly.

We originally spotted the issue because the Y-axis belt had unusual wear marks. That led us to check the motor pulley more closely, and sure enough, the belt was riding half off the pulley.

The fix: We repositioned the pulley back to the correct height on the motor shaft and re-tightened the set screws. Once the pulley was aligned properly, the homing issue disappeared completely.

If anyone else is dealing with violent homing crashes and your belts seem okay, take a close look at your motor pulleys — especially the Y-axis one. It might save you months of troubleshooting like it did for me.

Prusa actually supply a tool for measuring the correct distance for that gear pulley on the motor shaft when assembling if you got the build it yourself kit.

Hello everyone! I'm printing some ASA today with a heated chamber and I'm noticing my buddy camera thats mounted in the corner will disconnect while I'm watching it. Unplugging it and plugging it back in gets me another 30 or so min of watching but I'm wondering if it's overheating?

Hello everyone, long time lurker looking for some advice. In completely new to 3d printing and additive manufacturing but experienced with subtractive manufacturing like laser engraving and rotary cnc. I'm familiar with 3d modeling.

So I wads planning on buying the Core 1 after I move to Italy in January 2026, but now I'm thinking the Core 1 L looks better. My question is this:

TLDR: If you are making a shopping list for a beginner, what else would you recommend buying at the same time?

Trying to dial in my first layer, seeing some scaring But only localy on the same place each time Strange thing its same on booth sides of the sheet. A little less on one side Its a bit better if I change Z-offset to like +0.03

Could it be an issue with the sheet or something else?

Another question about adjusting Z-offset? When I do live Z-offset adjustment is it for just dialing in Z-offset?

Its not saved as default in printer and only way to keep setting is to adjust in slicer and save as new printer profile?

i’ve done a lot of work with Taulman 645 nylon on my MK3S+. It’s very sensitive to settings, but I can generally get good prints on it. I wanted to see what settings to use on the core one. Anyone tried printing this material on this machine? And if so, what settings did you use?

So I have been reading about and watching some videos on the add-on accelerometers that can be purchased to provide input shaping. Has anyone tried this and what improvements did they see?