RE:
Regarding usable print speeds of the Core One. I only print with the slow STRUCTURAL profiles. I have had virtually zero success printing anything usable using the SPEED profiles. The newest BALANCED profiles are a mixed bag and so far have been unreliable: sometimes they work and sometimes they don't.
Here's what I mean by poor prints. Prusa says it isn't a problem. Beige is the Core One, Gray my Mk3. Prints don't get any simpler than these examples.
Gray is from the Mk3, blue are from the Core One Structural, Balanced, then Speed profiles.
RE: Core One owners regretting their purchase?
Blimey, they're awful! What material is that? Surely the machine is unusable like that?!
RE: Core One owners regretting their purchase?
The C1 is my first printer bought assembled two months ago after years of observation deeming 3D printing not good enough yet. If I had the choice right now I would buy exactly the same machine. Maybe if space allows I will buy a XL in the future as a second machine, the whole printhead optimisation for a particular task is much more attractive to me than the whole INDX situation.
I can repair the C1 myself, its cyber safe, its made in the EU so no regrets at all.
RE: Core One owners regretting their purchase?
The C1 is my first printer bought assembled two months ago after years of observation deeming 3D printing not good enough yet. If I had the choice right now I would buy exactly the same machine. Maybe if space allows I will buy a XL in the future as a second machine, the whole printhead optimisation for a particular task is much more attractive to me than the whole INDX situation.o
I can repair the C1 myself, its cyber safe, it’s made in the EU so no regrets at all.
What do you mean by the bold part mate ?
RE: Core One owners regretting their purchase?
The C1 is my first printer bought assembled two months ago after years of observation deeming 3D printing not good enough yet. If I had the choice right now I would buy exactly the same machine. Maybe if space allows I will buy a XL in the future as a second machine, the whole printhead optimisation for a particular task is much more attractive to me than the whole INDX situation.o
I can repair the C1 myself, its cyber safe, it’s made in the EU so no regrets at all.
What do you mean by the bold part mate ?
I think he means that with the XL it's grabbing the entire Nextruder as opposed to the INDX which is just grabbing a hot end assembly.
RE: Core One owners regretting their purchase?
The C1 is my first printer bought assembled two months ago after years of observation deeming 3D printing not good enough yet. If I had the choice right now I would buy exactly the same machine. Maybe if space allows I will buy a XL in the future as a second machine, the whole printhead optimisation for a particular task is much more attractive to me than the whole INDX situation.o
I can repair the C1 myself, its cyber safe, it’s made in the EU so no regrets at all.
What do you mean by the bold part mate ?
The way I read it is because (at least for the foreseeable future) INDX is nozzles only and the XL has had announcements for non-FDM extruding alternate tools (I know of the 2-part curing liquid (silicone for now) and pick-and-place for embedding hardware), he sees more task expansion on the XL than any of the INDX options on the market, including the C1INDX. But I could be putting words in his fingers. 😉
See my (limited) designs on:
Printables - https://www.printables.com/@Sembazuru
Thingiverse - https://www.thingiverse.com/Sembazuru/designs
RE: Core One owners regretting their purchase?
The C1 is my first printer bought assembled two months ago after years of observation deeming 3D printing not good enough yet. If I had the choice right now I would buy exactly the same machine. Maybe if space allows I will buy a XL in the future as a second machine, the whole printhead optimisation for a particular task is much more attractive to me than the whole INDX situation.o
I can repair the C1 myself, its cyber safe, it’s made in the EU so no regrets at all.
What do you mean by the bold part mate ?
The way I read it is because (at least for the foreseeable future) INDX is nozzles only and the XL has had announcements for non-FDM extruding alternate tools (I know of the 2-part curing liquid (silicone for now) and pick-and-place for embedding hardware), he sees more task expansion on the XL than any of the INDX options on the market, including the C1INDX. But I could be putting words in his fingers. 😉
OK. Like a laser module, a router or a sharpie.
Anyway, next year's FormNext I expect there will be plenty of INDX clones. Elegoo, Creality, Qidi... And the Core Two... now comes with sharks with laser beams on their heads.
RE: Core One owners regretting their purchase?
I find the thread topic silly. For any machine, product, or tool, you can find people that love it and people that hate it. So what does the thread accomplish? Venting maybe? Also, statistically, across all product types, there will be problems with 1 or 2%. That is statistical variation of quality. The 99 people who are not having any problem and would give it 5 star reviews? We don't hear from them often. The 1 or 2 who hate it or got a lemon? They will likely be almost the only voices, providing a distorted perception of the overall product quality by those who discover the thread using google and read it.
DISCLAIMER: I am new to 3D printing. This is my first machine. I am not a business user. This is for hobby and learning. For me and my specific use-case: The Core One has been working fine and I would not change it or buy something different. I was not an early adopter; I waited half a year until various new-product issues were worked out, and my initial experience has been happy. As far as price; I saved enough before retiring, so I don't care if it costs more than Bamboo. As far as new firmware; I never dive right in the first day it's released (RC's). Some people like that, but it can also be a recipe for frustration and negative experience. I plan to install the latest firmware drop after 30 more days go by. Your mileage may vary, and your choices will definitely be different than mine.
Cheers,
Neal
RE: Core One owners regretting their purchase?
The C1 is my first printer bought assembled two months ago after years of observation deeming 3D printing not good enough yet. If I had the choice right now I would buy exactly the same machine. Maybe if space allows I will buy a XL in the future as a second machine, the whole printhead optimisation for a particular task is much more attractive to me than the whole INDX situation.o
I can repair the C1 myself, its cyber safe, it’s made in the EU so no regrets at all.
What do you mean by the bold part mate ?
The way I read it is because (at least for the foreseeable future) INDX is nozzles only and the XL has had announcements for non-FDM extruding alternate tools (I know of the 2-part curing liquid (silicone for now) and pick-and-place for embedding hardware), he sees more task expansion on the XL than any of the INDX options on the market, including the C1INDX. But I could be putting words in his fingers. 😉
Thats exactly what I mean, silicone printhead, pick and place head, a TPU optimised one is something I would mod. High temp that probably will never come to INDX because of the one size fits all inductive heater. The two systems are for different audiences because INDX certainly has its pro's in multicolour printing, I just dont need that. Orthopedists and dentists will for example kill for the silicone printhead if that thing matures.
RE: Core One owners regretting their purchase?
I find the thread topic silly. For any machine, product, or tool, you can find people that love it and people that hate it. So what does the thread accomplish? Venting maybe? Also, statistically, across all product types, there will be problems with 1 or 2%. That is statistical variation of quality. The 99 people who are not having any problem and would give it 5 star reviews? We don't hear from them often. The 1 or 2 who hate it or got a lemon? They will likely be almost the only voices, providing a distorted perception of the overall product quality by those who discover the thread using google and read it.
DISCLAIMER: I am new to 3D printing. This is my first machine. I am not a business user. This is for hobby and learning. For me and my specific use-case: The Core One has been working fine and I would not change it or buy something different. I was not an early adopter; I waited half a year until various new-product issues were worked out, and my initial experience has been happy. As far as price; I saved enough before retiring, so I don't care if it costs more than Bamboo. As far as new firmware; I never dive right in the first day it's released (RC's). Some people like that, but it can also be a recipe for frustration and negative experience. I plan to install the latest firmware drop after 30 more days go by. Your mileage may vary, and your choices will definitely be different than mine.
Cheers,
Neal
I think exactly the same way, I might even wait longer than a month to install new firmware haha.
RE: Core One owners regretting their purchase?
I totally agree that forums and social media are a great way to single out the few who are unhappy – I see it in motorcycling all the time.
I ended up on this thread as I'd ordered a Core One+ but was worried that when I sold my MK3S to help pay for it, I'd be disappointed if the print quality wasn't as good.
My MK3S is of course slow, but it's also printing in excellent quality, and I have a hardened steel nozzle that's currently got some glow in the dark Polymaker PLA going through it.
I love designing parts and seeing them come to life, and besides being slow and having a limited print size, the MK3S does all I need really. If I print anything more exotic it'll likely be PETG CF. I would like to dabble with PC but I can wait.
I cancelled my Core One+ order because I realised that if I'm going to upgrade my MK3S it needs to really be an upgrade, so I'm going to wait for a Core One L with INDX. Multi-material, faster, bigger bed and more material choice – it's the upgrade I really need to make. The only thing I don't like is that it's not available as a kit.
I was of course tempted by Bambu, and I have friends in the motorcycle accessory and security industry that are very pleased with them, but from everything I've seen the prints are good, but not always perfect. I want as close to perfect as I can get, and I know that in FDM you need to work to get that. Prusa has an unmatched level of support that I've used a few times since I built my MK3S, and I'm really happy with the results from my MK3S, and I'm fully behind the way Prusa works in offering upgrades and support for even older machines. Prusa stopped me spending my money because it makes such solid, dependable and repairable kit!
I'm going to save up for the Core One L. If a kit becomes available I might not even wait for the INDX version, but I know that'd be the sensible thing to do.
RE: Core One owners regretting their purchase?
For me the Core One goes from hero to zero on a regular basis, it works fine for a while and then just has a problem. It feels like a constant stream of issues that just stops progress which is frustrating. It also so slow to do anything useful, I understand about the heating up, etc but nozzle clean - deeply irritating, bed levelling - really re-measuring the same spot multiple times then failing, it was fine for the print that had just finished. You upgrade Prusa Slicer and now get random problems in prints, the list just goes on and on.
I do not want to have to contact support to get it working every time as it just wastes my time, I need a reliable, robust printer - the Core One isn't it.
Genuinely if I had the funds I would just buy something else, the Core One was supposed to be a solution but is becoming a frustrating problem.
RE: Core One owners regretting their purchase?
I bought my C1 kit in September 25, and it sat for a month before I put the kit together. I had hurt my back and couldn't sit to deal with it. I assembled it in October. Great instructions, but need work. When it came time to tension the belts and do all that assembly, I got fed up after days of work. The belts are too short and would pull out when I attempted to tension them. I could not get the correct tension without them pulling out. I could not manage to get the "4 teeth" to extend and stay put. No working room with the short belts. I finally ordered the same belt material on a roll and made my own belts. I got it all assembled and tensioned correctly and trimmed the excess. That problem was solved. Successfully printed a few things then problems started. I have probably assembled and reassembled the Nextruder 50 times, troubleshooting a variety of problems that the support seems unable to resolve. I have never gotten the Y-axis self-test to pass, well, once, but it prints. No help from support. I find better and more accurate help from Co-Pilot.
I purchased the MMU with it, and it is sitting in the box. No way I will attempt to build and install it until the main unit is working. I attempted to print the Community MMU box for the top on Printables...no way yet.
I am now beset with a variety of printing problems. I really just wanted to get into 3D printing for fun and printing some parts for my HAM radio hobby. I have gone through more filament with bad prints than good ones. I have spent 100s of hours troubleshooting, and chatting, far less hours than actually printing. I have gone through it a dozen times to check things and readjust for use.
I am ready to set fire to it! I wish I had not waited a month to assemble it or I would have sent it back from all the problems.
Now I am battling grinding and extrusion problems. It is probably me and something I am doing wrong, but 3D printing should not be this hard. I have invested heavily in the C1 and supplies, or I would chuck it and never 3D print again. I really want this to work so I can have some fun, but I don't think 3D will ever be fun. The wife hearing me cuss and yell over a $$$ purchase is no fun either!!
I'll keep at it and update if things become successful.
RE: Core One owners regretting their purchase?
I’ve had my Core One for about a month and am really happy with it.
I tried 3D printing over a decade ago (with an Achatz Prusa i3 clone) — and never really got anywhere: it was clearly a hobby where the “fun” was in getting the printer to print (some of) its own parts.
I had, however, found that there were lots of things I wanted to print so I looked again recently and was about to get a Bamboo X1C — just when the fuss about their license changes started.
I really dislike vendor lock-in, subscription models and online services etc. so I got the Prusa (and happily use Connect — because I don’t have to 🙂
I’ve printed a fair bit and the print quality is great.
I’ve had one nozzle blockage, which I managed to fix, and I can’t get TPU to load, but I expect that’ll work after I’ve modded the filament sensors.
I haven’t had it long enough yet to completely trust it — but so far so good.
RE: Core One owners regretting their purchase?
This is unfortunate. The belts that came with the printer should be perfectly fine, you shouldn't have needed to purchase your own.
I've had my C1 a while and honestly I have found it to be quite reliable - for me anyways. Haven't had any major issues that have stopped me from printing. Saying that, I do feel its for those who have experience printing previously - more for for the semi-advanced user. For a complete beginner I really would recommend something from Bambulab - they are built with beginners in mind and I've always found they 'just work' - literally as soon as you take it out the box! I know that doesn't help you right now, but please do scour and use the forums - lots of knowledgeable people here that are happy to help. Don't let it put you off of 3D printing altogether!
It is probably me and something I am doing wrong, but 3D printing should not be this hard. I have invested heavily in the C1 and supplies, or I would chuck it and never 3D print again. I really want this to work so I can have some fun, but I don't think 3D will ever be fun. The wife hearing me cuss and yell over a $$$ purchase is no fun either!!
I'll keep at it and update if things become successful.
RE: Core One owners regretting their purchase?
Bought a Core One kit in september to understand really product characteristics and being able to maintain it easily.
Assembly went smooth, except for an electronic failure that led to main board change after a failure. Not a real problem since I got amazing support from PRUSA team. This is probably the most important test I made, because I was not exposed before to any such company and honestly those folks are super.
After curing this infant ilness, Core One shows as an excellent printer, very reliable, nice firmware and ecosystem and I am using it 16h/day at least for my projects.
This was not possible with my 2 other printers, built from kit (E3D) and from crowfunding (Fabtotum).
I have 12 years experience in 3D printing, I use prusaslicer since 6 years after having used Simplify3D, so I am not struggling with parameters to get the best out of the C1.
In short, C1 is an excellent printer, european design, and I love the excellent spirit from the company, who has the honest way to explain that open source has its limits and probably less future in a real consumer sizeable market.
I don't regret any € I thrown in the printer, and I will buy the INDX upgrade as soon as PRUSA sell it and enough user experience give valuable feedback on this interesting but challenging technology.
RE: Core One owners regretting their purchase?
I recommend you to read through the thread in this forum named "HOMING ISSUES". It is a miniature course in how to set up the machine correctly. @jürgen and @hyiger (and a few others) went reall yall out in trying to help and, in doing so, ended up writing how to address a number of issues you seem to have as well.
Maybe in one of the proposed fixes in that thread there is something fdor you to finally solve your problems.
I bought my C1 kit in September 25, and it sat for a month before I put the kit together. I had hurt my back and couldn't sit to deal with it. I assembled it in October. Great instructions, but need work. When it came time to tension the belts and do all that assembly, I got fed up after days of work. The belts are too short and would pull out when I attempted to tension them. I could not get the correct tension without them pulling out. I could not manage to get the "4 teeth" to extend and stay put. No working room with the short belts. I finally ordered the same belt material on a roll and made my own belts. I got it all assembled and tensioned correctly and trimmed the excess. That problem was solved. Successfully printed a few things then problems started. I have probably assembled and reassembled the Nextruder 50 times, troubleshooting a variety of problems that the support seems unable to resolve. I have never gotten the Y-axis self-test to pass, well, once, but it prints. No help from support. I find better and more accurate help from Co-Pilot.
I purchased the MMU with it, and it is sitting in the box. No way I will attempt to build and install it until the main unit is working. I attempted to print the Community MMU box for the top on Printables...no way yet.
I am now beset with a variety of printing problems. I really just wanted to get into 3D printing for fun and printing some parts for my HAM radio hobby. I have gone through more filament with bad prints than good ones. I have spent 100s of hours troubleshooting, and chatting, far less hours than actually printing. I have gone through it a dozen times to check things and readjust for use.
I am ready to set fire to it! I wish I had not waited a month to assemble it or I would have sent it back from all the problems.
Now I am battling grinding and extrusion problems. It is probably me and something I am doing wrong, but 3D printing should not be this hard. I have invested heavily in the C1 and supplies, or I would chuck it and never 3D print again. I really want this to work so I can have some fun, but I don't think 3D will ever be fun. The wife hearing me cuss and yell over a $$$ purchase is no fun either!!
I'll keep at it and update if things become successful.
RE: Core One owners regretting their purchase?
Now I am battling grinding and extrusion problems. It is probably me and something I am doing wrong, but 3D printing should not be this hard. I have invested heavily in the C1 and supplies, or I would chuck it and never 3D print again. I really want this to work so I can have some fun, but I don't think 3D will ever be fun. The wife hearing me cuss and yell over a $$$ purchase is no fun either!!
If you are brand new to 3D printing then buying a Core One kit (in my opinion) is probably not the best path. I started out with a pre-built printer then graduated to building my own. By that time I was experienced enough that I was able to understand how to fix the problems I had with regard to operating the printer after building it which was (in this case) a Prusa MK4.
That aside. If the belts were not long enough and they were pulling out of the harness then that is an indication that they were incorrectly routed. Not that they were too short. Otherwise, this is the first I have heard of this issue. By supplying your own belts to replace them you are masking the problem.
As for why the Y calibration is not passing that's most likely being caused by an incorrectly mounted pulley, a bent gantry or both.
Read through the "HOMING ISSUES" thread and if that doesn't answer your questions you can start a new topic in "Assembly and first prints troubleshooting" and we will do our best to help. To start with though, I would recommend going back to original belts or cut the new belts to be the exact same length.
RE: Core One owners regretting their purchase?
I bought my C1 kit in September 25...
I simply didn't follow the instructions with the "4 teeth in the extruder" part. Instead, remove the idler pulley from their screws, insert belts (this may take some iteration to figure out an appropriate number of teeth) then re-insert pulley to the screw. Which is trivially simple, compared to the manual's procedure.
BTW, careful with the pulleys (one way or the other), they break easily.
If XY doesn't work, I would order spare belts from Prusa, not take "compatible" material that may be subtly different (their tuning is based on belt resonant frequency. Even a belt that is mechanically indistinguishable but doesn't have the same weight / length ratio would not tune correctly).
Check the "gantry alignment" topic. Many printers need mechanical bending. This may seem intuitively wrong but the complete assembly needs to achieve better accuracy than manufacturing tolerances of the (bent sheet metal) parts alone would allow.
And (picking up hyiger's sermon 🙂 ), don't assume filament out of the box is in printing condition. I made that mistake myself because it usually is, but not reliably so. If the printer is misbehaving and filament isn't known to be dry, stop. You can't fix that failure mode anywhere else.
Before you write it off, you might consider getting a cheap "push-button ready" bedslinger for the learning experience. It's another $200 or so but it might save the larger investment into Core one.
And, the MMU is a wonderful thing e.g. to print colored boxes and dials. But don't even think about touching it before the printer runs rock solid (lacking a "cancel" button you usually have to reboot the whole box if something goes wrong. Annoying at first but when the printer runs smoothly, things aren't supposed to "go wrong" anymore or people could never complete their 1+ day prints).
RE: Core One owners regretting their purchase?
OK. I am a covert!
Took some suggestions, did a LOT of reading the last two days, and stepped back and took the 30,000 foot view.
A HUGE thank you to Martin Parr in support!! He guided me through all the Slicer config setups in Slicer. I felt like 90% of my problems with models was a code related issue from Printables. Most of the Prusa samples would print fine, but few of the downloads.
I loaded all the Prusa printer and filament configs into Slicer and VIOLA!!! +90% of problems are gone!!
I am a beginner to 3D, but by no means a beginner to computers. software, and assembling things or technology.
My advice is - If you are having banging, grinding, blob, and all sorts of problems print on a Core One - Make sure you load all the Prusa Research configs into Slier!!!