Problems with Print quality ABS

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blue.hills
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Joined: Wed Sep 05, 2018 2:57 am

Problems with Print quality ABS

Postby blue.hills » Wed Sep 05, 2018 3:19 am

Hi,
I have been printing the same part and gcode for some time. The most recent time printing this part and also subsequent times after I have been having an issue with the quality of the prints. Do I have a printer part failing, how can I diagnose this? I have Bondtech extruding mechanism and Hatchbox 1.75mm ABS plastic (both of which were unchanged variables when my print quality had been great). I am really confused, see attached pictures.

Again thanks for any help, I just need to diagnose this.
Attachments
3.jpeg
4.jpeg
1.jpeg
2.jpeg

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Vicky@Raise3D
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Joined: Fri Mar 25, 2016 3:54 am

Re: Problems with Print quality ABS

Postby Vicky@Raise3D » Wed Sep 05, 2018 8:06 pm

Would you like to share the .data file here so that we can see your print settings?
BTW, normally we will put the fan bottom cover on when printing high temperature filament.

blue.hills
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Joined: Wed Sep 05, 2018 2:57 am

Re: Problems with Print quality ABS

Postby blue.hills » Mon Sep 10, 2018 5:09 pm

Hi, by the .data file do you mean the .Gcode? And I guess ABS wouldn't count as high temperature filament? The main confusing thing to me is the fact I've used the printer in this exact configuration in the past with no issue, same .Gcode

The fact the only changed variable is runtime makes me suspect some component is worn down or not functioning correctly now.

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Vicky@Raise3D
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Re: Problems with Print quality ABS

Postby Vicky@Raise3D » Tue Sep 11, 2018 2:48 am

I mean .data file which is created together with .gcode file with complete slicing. It can show print settings.
ABS is a kind of high temperature filament, as it has high shrinkage rate due to temperature.

blue.hills
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Joined: Wed Sep 05, 2018 2:57 am

Re: Problems with Print quality ABS

Postby blue.hills » Mon Sep 17, 2018 7:57 pm

Okay, I can work to get that file. But it seems to me this is clearly a printer wearing issue, since I've been using the same code since day one (back when I had no issues printing)

blue.hills
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Re: Problems with Print quality ABS

Postby blue.hills » Mon Sep 17, 2018 9:17 pm

Okay the .gcode has been stored only locally on the printer. I went ahead and made new .gcode and a .data file and have to upload them from my laptop. I will know in 18 hours the result of printing this code and will post pictures. This forum is not letting me upload with the file extensions so I will .zip the data file (says gcode too big to upload though). It looks like I compressed the gcode small enough with 7zip though to upload too!
Attachments
1xCupholder (high rez)GCODE.7z
(2.01 MiB) Downloaded 10 times
1xCupholder (high rez)DATA.zip
(28.51 KiB) Downloaded 9 times

blue.hills
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Joined: Wed Sep 05, 2018 2:57 am

Re: Problems with Print quality ABS

Postby blue.hills » Tue Sep 18, 2018 8:58 pm

Printed with that new generated Gcode, and still have the same issue with quality. But going to have to redo that code I sent already since it printed on a raft this time and I can't have that.

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Vicky@Raise3D
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Re: Problems with Print quality ABS

Postby Vicky@Raise3D » Wed Sep 19, 2018 12:03 am

From the settings you shared, I see that you are using the default High Quality ABS settings.
Have you ever tried printing with lower nozzle temperature to compare the results?

blue.hills
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Re: Problems with Print quality ABS

Postby blue.hills » Mon Sep 24, 2018 2:54 am

Yes, the temp makes no difference and eventually makes it worse at the layer adhesion etc drop off immediately. Can I please have help actually figuring out what has worn in my machine?? The problem is not a setting issue, I have never had a problem like this in any variance of settings before but now have been using the printer for quite some time now. I am positive something is worn or needs to be replaced on the printer itself, how can I investigate the cause?

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Vicky@Raise3D
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Re: Problems with Print quality ABS

Postby Vicky@Raise3D » Tue Sep 25, 2018 1:07 am

The issue looks like due to temperature based on your pictures, as there has no obvious mechanical issue on your model, such as shifting, deformed.
Please clean the nozzle and hotend before starting another print. From the pictures you shared, your hotend looks really directly covered with filament. If you have another new spool of this filament on hand, I would suggest test with higher layer height, such as 0.15mm for standard settings and lower printing speed.
And meanwhile, confirm the nozzle temperature on screen, which it changes a lot during printing. If it changes a lot, you may need to tune PID or something wrong with temperature sensor or heating components.
BTW, how long have you used this current hotend? Does this issue happen at the beginning or newly appeared?

ZED
Posts: 2
Joined: Sat Sep 29, 2018 4:45 pm

Re: Problems with Print quality ABS

Postby ZED » Sat Sep 29, 2018 4:55 pm

I'm having a similar issue. Did you ever figure out how to improve this? I've tried reducing temperature by a couple degrees and increasing/decreasing retraction by 0.1mm without improvement. If this is a different issue from yours or does anyone else have advice?

Image

blue.hills
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Re: Problems with Print quality ABS

Postby blue.hills » Fri Nov 02, 2018 6:18 pm

@ZED I still have never solved this issue, just have been dealing with the lower quality unfortunately, usually its defective in a certain area of the print almost like there is a mechanical issue in the bearings etc. At this point I have been searching for a specialist of some kind to diagnose and fix the printer, because the poor quality has ruined the reputation for the parts I have been creating recently. I am thinking it could be the extruding mechanism slipping or the nozzle on the hot end being worn possibly, but posting here got me nowhere.

I have been using the hot end since the beggining, and the temperatures never change during the print at all. And more importantly with the same exact .gcode and filament I was getting beautiful prints in the beginning using this printer on the same part, so its definitely not related to temperature settings. My .gcode had the 0.15mm layer height IIRC already and I have been throughly cleaning the hotend before every print and it gets immedeately covered in buildup again after the next item which should be a huge clue to whatever defective component is causing an issue.

Also there is no email notification on this forum, so I have no idea when I even get a reply which makes for a long drawn out back and forth diagnosis thread. I literally had to check in just today if I got a reply, once I gave up blindly checking every few hours when I last posted in September. I am going to reach out directly to Raise 3D via their website and see if I can get some live tech support, I am pretty annoyed the main troubleshooting is to just "tweak settings" and waste money on more ABS plastic to see there isn't any change. I don't want to keep buying spool after spool to print parts that are too low quality to sell, with barely having changed any variables to improve my printing in the first place.

Honestly considering selling this printer as-is and moving on to a different manufacturer if that doesn't get my printer back on its feet, this experience is leaving a pretty bad taste in my mouth. If it will let me post my email here it's bluehillsmine@gmail.com; please is there a way I can add this to my forums account so I can know when I get replies? That would be great

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Vicky@Raise3D
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Re: Problems with Print quality ABS

Postby Vicky@Raise3D » Fri Nov 02, 2018 9:40 pm

You can open a support ticket at http://help.raise3d.com with your email address. So that all the response to that ticket, you will get notifications.

crimsonyoshi
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Location: Manitoba, Canada

Re: Problems with Print quality ABS

Postby crimsonyoshi » Tue Nov 06, 2018 9:43 pm

I'm a bit late to the party here, but looking at your first couple of pictures with the amount of material all over the nozzle tells me there's a small break in your hot end somewhere. I had a similar experience where the nozzle slightly broke just below the heat sink, and that caused polycarbonate to slowly ooze out. 100% my fault I believe though as I had warping on my model I was working with, so the nozzle ended up dragging on the model a few times.

While oozing won't cause insane issues, they will add to any existing problems. I haven't worked with ABS as of yet (and I keep saying someday I will - I've got a couple of spools waiting for me), but I know via other threads in here and from other manufacturer forums, it can warp slightly. Nowhere near the same extent as polycarbonate though. So if you've got warping going on plus oozing, that can cause print issues galore.

My fixes were replacing the hot end with a new one for oozing, and for warping, add dense layers to a support structure (or increasing infill up to 100%). Now, if you've printed this a few times without issue - it shouldn't be warping. Z-hop is also something to try out (height set to 0.25mm).

I see the last post was 4 days ago, and tech support hopefully will be able to have answers for you - as I can only go off of what's happened to my machine thus far.


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