Ringing/ghosting - Prusa Team please provide more information
Hallo,
As there is a lot of user's feedback of ringing/ghosting, could anyone from Prusa Team tells us more what is the problem with it and if it can be resolved without lowering external speed to 15mm/s. I ordered my printer but I am really concerned reading all those informations, or maybe it is already fixed and new printers will be shipped without this problem?
Re: Ringing/ghosting - Prusa Team please provide more information
Hello Bartosz and welcome to this forum.
The Prusa Support team does not answer here. It's a user to user forum. Official Prusa support is either online chat or email.
If you are already worried about ringing at certain speed then you might rethink your decision to buy a 3D printer. It's a long way of learning and tweaking to get a really good results. The showcase of best Prusa prints is based on a lot of experience and prints. The provided hardware is possible to bring you there but don't expect this on day one.
The Prusa homepage doesn't mention it, but you're buying a tool like saw and a hammer by watching at the nice assembled wooden wardrobe.
Often linked posts:
Going small with MMU2
Real Multi Material
My prints on Instagram
Re: Ringing/ghosting - Prusa Team please provide more information
nikolai.r do you own a mk3? from reading your posts you have a mk2 machine. i've owned my mk2s for a year and believe me the mk3 is not ready for sale it has significant issues above messing with some settings. there are real firmware problems with this machine that need to be solved before you can even try to dial it in.
“One does not simply use a picture as signature on Prusa forumsâ€
Re: Ringing/ghosting - Prusa Team please provide more information
It is not my first 3d printer, the one I have is i3 clone with pretty decent print quality, of course after hundreds of hours printing/tweaking but I dont want to compare printer for 150-200 EUR to the printer for few times more. I would really want someone to confirm that he achieved good print quality without ringing/ghosting. Can anyone confirm/show the printed parts. I need this printer mostly for engineering not to print with some crazy layer height settings like 0.05mm but still really need to see more of the parts printed using this MK3 printer and the people's opinion who already has it
Re: Ringing/ghosting - Prusa Team please provide more information
@Daniel:
Yes, I own MK2/MK2S and I keep track on all the MK3 issue because my MK3 should be shipped soon.
The firmware is not fully stable and is under heavy development, you can see it on github. But it already perform pretty good under certain conditions. The hardware parts are all good except of PSU which does have too many fails for my taste with 110V. But that's exactly my point. Bartosz should not expect one-button-solution printer. It has own limitations.
@Bartosz:
Do not expect to much only because you're paying couple hundreds more. The original Prusa i3 might perform better and give you better results depends on how much you've tweaked your i3 clone. But it's still the same design and have the same weak points.
Because I don't own MK3 yet, I can't provide examples. The ghosting I can reproduce with my MK2 by raising the speed to 40mm/s for the outer lane. That's why I'm printing with 20mm/s outer lane and no ghosting.
I assume you will have the same thing on MK3 in high speed. It's a limitation of the heavy head which gives you this result. The weight is unchanged, maybe even heavier.
Most people come here because they have some kind of issues. People who are satisfied with the results usually just using the printer. But maybe we have one satisfied MK3 user here 🙂
Often linked posts:
Going small with MMU2
Real Multi Material
My prints on Instagram
Re: Ringing/ghosting - Prusa Team please provide more information
when you start to use your new MK3 and they haven't got the bugs out you won't be happy either. your going to be shocked at the issues compared to the MK2S
as far as my prints: The RED was done on the MK2S the Blue on the MK3, FYI the MK2S did a much better job.
“One does not simply use a picture as signature on Prusa forumsâ€
Re: Ringing/ghosting - Prusa Team please provide more information
You're absolutely right, the mk3 is not up to the mk2 or other economic range. I also have problems with print quality and I have had several printers
Re: Ringing/ghosting - Prusa Team please provide more information
Printing a giant model car is not the ideal way to identify and troubleshoot ringing. Why did you let the model complete if you weren't happy with it? 15mms perimeter may be excessive, I use 50% of whatever my print speed is (usually not more than 100 or so) with 8 jerk and 1000 accel.
Print a cube, if it ghosts lower accel and jerk using M commands in your start script. rinse, repeat, report back.
You're absolutely right, the mk3 is not up to the mk2 or other economic range. I also have problems with print quality and I have had several printers
OP is talking about a minor settings tweak, your printer can't even make it past layer 10 on a cali cube. I feel your pain but spreading FUD isn't the answer.
Re: Ringing/ghosting - Prusa Team please provide more information
@curtis
I use 50% of whatever my print speed is (usually not more than 100 or so) with 8 jerk and 1000 accel
Do you use those settings on MK3? Could You show results?
I need to determine how much is the firmware problem vs so heavy X carriage (at least it looks like heavy as I still waiting for my MK3). Maybe in the worser case there would be the easy way to print another bowden carriage to make it light weight...
Re: Ringing/ghosting - Prusa Team please provide more information
@curtis
I use 50% of whatever my print speed is (usually not more than 100 or so) with 8 jerk and 1000 accel
Do you use those settings on MK3? Could You show results?
I need to determine how much is the firmware problem vs so heavy X carriage (at least it looks like heavy as I still waiting for my MK3). Maybe in the worser case there would be the easy way to print another bowden carriage to make it light weight...
Can mitigate the weight with the proper speeds. Check out the pic, the orange benchy was printed with a very early firmware BEFORE they lowered the default print speed and acceleration and run in normal mode.
Re: Ringing/ghosting - Prusa Team please provide more information
Hmm hard to say from this image but it does not look bad. btw the silver one looks horrible;p
I already read some ppl who were able to fix some things by using antivibration mat/remove the upper spool holder or remove the gummy legs. Anyway thank You for additional information, i am still optimistic, in the worser case there will be the solid pack of electronic/steal/hotend to build something else 😀
Re: Ringing/ghosting - Prusa Team please provide more information
Well for now, I dont have any issues with ringing/ghosting.
When I got the printer (one of the very first firmwares), it was horrible.
Well as to expect, the printer was going way too fast and the claim that you can print 200mm/s is.... well overexagerrated?
The only thing going 200mm/s (if it even reaches that speed with acceleration and braking) is infill and the x/y axis at most.
Dont expect the z-axis to go any faster then 20mm/s.
Im on 17mm/s for the z-axis and I have no issues, maybe sometime I will up that speed, but not for now.