RE: Core One owners regretting their purchase?
I have been following this post since it was created. I hesitated for a long time before commenting. Now, after almost 3 months of use, I can say that I have no regrets.
You have to keep in mind:
- People make mistakes
- People build machines
- Machines make mistakes because people built them
- People operate the machines that were built by people
With a Prusa printer, it never gets boring. I know from my own experience that printers from other manufacturers have similar, different, or “better” problems.
Even though the C1 isn't perfect, it does what I want it to do. The print results are perfect now — but only because settings defined by a human (in this case, me) on the printer have led to success.
The only way to improve a machine when it has faults is through human intervention. The machine only does what it is “told” to do.
RE: Core One owners regretting their purchase?
If we are sounding off, I have had my Core One for 3 months and I have absolutely no regrets. The Core One is my first printer, is purely hobby, and any problems have been purely self inflicted.
RE:
I'm trying to convince myself not to get an H2D. If I do, I may still keep the Core One mounted with the INDX system but I just can't see a use case for me except some multi-color stuff. I still don't regret the Core One except for the limitations I've already mentioned ad nauseam.
I suppose I could flip this around and ask: "Are there any H2D owners regretting their purchase?"
RE: Core One owners regretting their purchase?
I'm trying to convince myself not to get an H2D. If I do, I may still keep the Core One mounted with the INDX system but I just can't see a use case for me except some multi-color stuff. I still don't regret the Core One except for the limitations I've already mentioned ad nauseam.
I suppose I could flip this around and ask: "Are there any H2D owners regretting their purchase?"
Maybe wait a bit and try the INDX first? Either it will be a pleasant surprise and will just work and impress you, or it will give you the perfect reason to get that H2D. Win-win! 😎
RE: Core One owners regretting their purchase?
Maybe wait a bit and try the INDX first? Either it will be a pleasant surprise and will just work and impress you, or it will give you the perfect reason to get that H2D. Win-win! 😎
It's a temperature issue more than anything. A guy in my model rocket club recommended I give PPA-CF or PPS-CF a try. So I'm thinking to myself "Good idea, only my C1 can't print these."
RE: Core One owners regretting their purchase?
Things are still going great! Fought a long battle to get where I am with my C1, but learned a lot along the way. I always felt it was something I did wrong in assembly, just couldn't get past "Check the belt tension." Once problems were located and resolved, with a lot of help from here, things run smoothly 99.9% of the time.
I am in the process of assembling and installing the MMU3. I did print the top mount assembly from Printables. I do not have the room to spread out 5 spools around the printer. In no hurry to get it done.
I have completed a few very large and time-consuming builds. I printed a large geo-iso-sculpture last week that took 30 hours to print. No problems. The only problem I have had with a long print job was one that, 12 hours into it, hit a serious knot on the Prusa 2k black PETG spool. GRRRRR! I'll have to give the nextruder credit! It lifted that half full 2k spool all the way up to the feed tube! It kept on printing, though nothing was coming out! Wish we had a sensor for that.
I grumbled a bit about wasting 12 hours and a lot of filament, but I guess it happens.
My wife asked me if I planned on printing 24 hours a day!? I will usually start something before I go to bed since it all runs well now.
I never meant to bash support over all the problems I had early on. I always felt it was something I had done wrong. My advice to them was to track previous calls and advice to the same customer and not recommend the canned solutions over, and over, and over, when they have not worked. It is easy for me to recommend that, but not easy to implement. I am just coming from 20 years of support work, much over the phone. The creation of a database to track and review previous calls and solutions I designed moved our support into a well-known and beneficial one in the industry in those days, and greatly reduced our support costs. The goal of any company's support teams is to not solve the same problems over and over. Support staffing is expensive for a company. Poor support is more expensive for a company. Not in cost but lost sales. Prusa support has been there in the middle of the night since they run 24/7. A 24/7 operation is awesome in itself! They just need to move the dial a little more.
5
Extra HAM Radio - N4MCC
RE: Core One owners regretting their purchase?
Maybe wait a bit and try the INDX first? Either it will be a pleasant surprise and will just work and impress you, or it will give you the perfect reason to get that H2D. Win-win! 😎
It's a temperature issue more than anything. A guy in my model rocket club recommended I give PPA-CF or PPS-CF a try. So I'm thinking to myself "Good idea, only my C1 can't print these."
Maybe this https://www.printables.com/model/1493518-polyheater-for-core-one-foldable-polydryer-chamber/files
and this https://www.prusa3d.com/product/ht-hotend-upgrade-for-core-one-and-core-one-l/
could solve that
RE:
Maybe this https://www.printables.com/model/1493518-polyheater-for-core-one-foldable-polydryer-chamber/files
and this https://www.prusa3d.com/product/ht-hotend-upgrade-for-core-one-and-core-one-l/
could solve that
Not really.
The PolyDryer doesn't heat above 55C and as for the HT hotend I would need to break the warranty seal on the BuddyBoard to install the modified firmware. I would prefer to wait for the official Prusa hotend that is yet to be released. Also, fundamentally the chamber cannot reliably go above 55C without causing issues with the stepper motors and electronics.
RE: Core One owners regretting their purchase?
Also, fundamentally the chamber cannot reliably go above 55C without causing issues with the stepper motors and electronics.
I wonder whether other brands use fundamentally better-suited solutions or simply run the parts outside of their specs? To my knowledge, all consumer CoreXY printers place the stepper motors and some electronics inside the chamber and rely on passive cooling for these components.
The Buddy camera has been reported to show actual functional issues when it runs too hot. Are there other known malfunctions, or is it more a general concern about reliability margins and longevity of the electronics?
On top of the electronics, mechanical issues may also arise when the chamber is heated too much. Printers with a glass door and top lid should avoid the bending panels of the Core One. But all CoreXY designs will be impacted by the temperature dependence of the belt length -- or is there any consumer printer which can compensate for that?
RE: Core One owners regretting their purchase?
Maybe wait a bit and try the INDX first? Either it will be a pleasant surprise and will just work and impress you, or it will give you the perfect reason to get that H2D. Win-win! 😎
It's a temperature issue more than anything. A guy in my model rocket club recommended I give PPA-CF or PPS-CF a try. So I'm thinking to myself "Good idea, only my C1 can't print these."
I printed a bit with Siraya PPA-CF in my C1, good results so far with layer adhesion, only thing you have to do is to reprint a different idler arm more suitable for brittle filaments.
I ran my C1 at 60degrees indicated chamber for a 24h print, nothing strange happened, havent tried more than that though. 70-80 would have been nice in some cases, but I wont push it more than 60. I think prusa might have a different design life calculation on some electronics, hence the more conservative limit even though it seems similar.
RE: Core One owners regretting their purchase?
I suppose I could flip this around and ask: "Are there any H2D owners regretting their purchase?"
Not in the slightest. Still have my Core One, but I love the H2D as well - currently upgrading it with the Vortek system (H2C) - video guide coming soon!
RE: Core One owners regretting their purchase?
I purchased a Core One approx 5 months ago, my first 3D printer to learn about the technology and how it worked. For me, it's a hobby. I print occasionally.
Before purchase, I did research, reading, YouTube videos, and decided that for learning about 3D printing, I would want to be able to print PLA and PETG, and then maybe grow into ABS, PC-CF, and ASA. I then started looking at which printer models are designed for those filaments. My choice was narrowed down to Bambu and Prusa. I chose the Prusa Core One because I liked the company and the history of long term parts availability, good support, and somewhat open source. Cost was not a consideration for me. The Prusa is known to be more expensive.
Summary: After 5 months, the printer has always done what it was designed to do. It just works, every time I use it.
Some of the complaining here are the 1 or 2 percent of people who got a "lemon", a unit with some hard to find issue or problem.
That happens with cars, cameras, audio and TV, tools, almost everything. It is not a perfect world. People build products, people
occasionally make a mistake in the factories. But it is a VERY small percentage, if you consider the total number of unhappy forum
posts (for any brand/product) versus the total number of units sold.
Some of the other complaining here is silly: It sounds like, "I bought a Lexus Hybrid luxury sedan, why can't it carry as much lumber
as Tom's flatbed truck?". I purchased a battery powered SawZall, why can't it do what Sam's high powered 10 HorsePower table saw does?
If you needed a larger printer, or one with higher end features for different purposes, then either buy that requirement in the first
place, or upgrade without complaining.
The Prusa Core One is doing everything that I purchased it for, and doing it quite well. As I said, it is my first printer, and if I
outgrow it in the future, I will buy something else. Nothing to regret here, move along...
RE: Core One owners regretting their purchase?
Simple answer to this question: No.
RE: Core One owners regretting their purchase?
Some of the other complaining here is silly: It sounds like, "I bought a Lexus Hybrid luxury sedan, why can't it carry as much lumber
as Tom's flatbed truck?". I purchased a battery powered SawZall, why can't it do what Sam's high powered 10 HorsePower table saw does?
If you needed a larger printer, or one with higher end features for different purposes, then either buy that requirement in the first
place, or upgrade without complaining.The Prusa Core One is doing everything that I purchased it for, and doing it quite well. As I said, it is my first printer, and if I
outgrow it in the future, I will buy something else. Nothing to regret here, move along...
The appeal of Prusa is you had an upgrade path. That you didn't need to buy a whole new printer to get the latest innovations. Some of us who have Core One's started with an MK3. I started with an MK4, upgraded to an MK4S then upgraded to the Core One. It's this feature alone that has, in my view, kept me with Prusa for the last 3 years. Now I'm seeing other brands: Elegoo, AnyCubic, Creality who used to copy Prusa as the innovator are now copying Bambu Labs.
Setting up a strawman arguement "why can't my Lexus carry lumber" is not the same thing. I bought a brand X car, I was promised a self-drive feature, they didn't deliver and now all my friends have self-drive in their cars.
RE: Core One owners regretting their purchase?
I wonder whether other brands use fundamentally better-suited solutions or simply run the parts outside of their specs? To my knowledge, all consumer CoreXY printers place the stepper motors and some electronics inside the chamber and rely on passive cooling for these components.
The Buddy camera has been reported to show actual functional issues when it runs too hot. Are there other known malfunctions, or is it more a general concern about reliability margins and longevity of the electronics?
On top of the electronics, mechanical issues may also arise when the chamber is heated too much. Printers with a glass door and top lid should avoid the bending panels of the Core One. But all CoreXY designs will be impacted by the temperature dependence of the belt length -- or is there any consumer printer which can compensate for that?
I can confirm that I've put in around 100 hrs of print time with the chamber at 55-60. I can also confirm that the Buddy Camera does not like this and will stop imaging when it get's too hot.
Anyway, I've replaced all of the PETG parts in the chamber with PC and relubed the bearings and planetary gears with a HT lubricant. If a stepper motor seizes up, then so be it, I'll just replace it.
With regard to other brands, the only numbers I will trust come out of BL. The QIDI 4 claimed a 65C chamber and 390C hotend (if I remember it correctly) and also burned down someone's house.
RE:
I have Siraya PPA-CF. It's barely printable for what I would want to use it for. The 290C hot end is at the lower-limit for that filament. I can also get my C1 to maintain a 60C chamber and have done so on and off for over 100hrs in total. However, I'm not sure how the Core One will hold up after say 6 months.
RE: Core One owners regretting their purchase?
My workhorses in order are
- Elegoo Centauri Carbons x 4 (2 ones and 2 twos)
- Three Core Ones
- One Mk4S+
- P1S
- X1C
- Anycubic Kobra S1
- Six Prusa Minis
- My XL
- Qidi Max4
- FLSUN T1 Pro
You will notice a trend, I use smaller printers more. I can print twice as much with small printers on a smaller build plate than filling the XL.
Eventually, I will buy an H2 of some variety to meet my print demands, but right now, the size is just not needed.
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Chuck H
3D Printer Review Blog
RE: Core One owners regretting their purchase?
You’re missing a Creality and a Formnext
RE: Core One owners regretting their purchase?
I have Siraya PPA-CF. It's barely printable for what I would want to use it for. The 290C hot end is at the lower-limit for that filament. I can also get my C1 to maintain a 60C chamber and have done so on and off for over 100hrs in total. However, I'm not sure how the Core One will hold up after say 6 months.
What issues do you have with printing Siraya PPA-CF ? I havent printed any extreme complicated parts yet, but it seemed to worked well on the smaller parts I did during the strenght tests/layer adhesion test, and looks. Obxidian 0,4 non HF
RE: Core One owners regretting their purchase?
No, I own two Creality printers. Both are garbage. I have heard the new ones are good. I am gun-shy about trying them.
You’re missing a Creality and a Formnext
--------------------
Chuck H
3D Printer Review Blog