ABS Setting/Calbration Issues with Cura July 14, 2017 10:18PM |
Registered: 10 years ago Posts: 26 |
Re: ABS Setting/Calbration Issues with Cura July 15, 2017 05:02AM |
Registered: 7 years ago Posts: 201 |
Re: ABS Setting/Calbration Issues with Cura July 15, 2017 10:14PM |
Registered: 10 years ago Posts: 770 |
Re: ABS Setting/Calbration Issues with Cura July 17, 2017 09:08PM |
Registered: 10 years ago Posts: 26 |
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Inhumierer
The Z surface looks a bit like you're printing too hot and/or too fast to let the object cool down before the next layer. Although 222 deg seems to be way too cold for ABS, I print mine at 247.
The side walls look like your printer is swinging or resonating when printing the outer walls. Do the vertical ripples change, when you print at half speed? What's your driver? Geared or direct? Bowden or extruder motor mounted on hotend?
Re: ABS Setting/Calbration Issues with Cura July 18, 2017 02:10AM |
Registered: 12 years ago Posts: 799 |
Re: ABS Setting/Calbration Issues with Cura July 18, 2017 02:58AM |
Registered: 7 years ago Posts: 201 |
Is the cube 10 or 20 mm? You're printing one cube at a time? Lower to 20mm/s, or print 4 or 9 cubes at once.Quote
The3rdIcon
I haven't dropped the speed down to 40 yet. I'll try that tonight but I would like to work back up to 60.
The side perimeter artefacts may be caused by a directly driven extruder, as far as I read, but that's not the case.Quote
The3rdIcon
My stepper motor drivers are A4988 Stepper Drivers. It is a geared and the extruder motor is mounted on the hot end.
Re: ABS Setting/Calbration Issues with Cura July 20, 2017 09:33AM |
Registered: 10 years ago Posts: 26 |
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The3rdIcon
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Inhumierer
The Z surface looks a bit like you're printing too hot and/or too fast to let the object cool down before the next layer. Although 222 deg seems to be way too cold for ABS, I print mine at 247.
The side walls look like your printer is swinging or resonating when printing the outer walls. Do the vertical ripples change, when you print at half speed? What's your driver? Geared or direct? Bowden or extruder motor mounted on hotend?
I haven't dropped the speed down to 40 yet. I'll try that tonight but I would like to work back up to 60. My stepper motor drivers are A4988 Stepper Drivers. It is a geared and the extruder motor is mounted on the hot end.
Re: ABS Setting/Calbration Issues with Cura July 20, 2017 09:37AM |
Registered: 10 years ago Posts: 26 |
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Inhumierer
Is the cube 10 or 20 mm? You're printing one cube at a time? Lower to 20mm/s, or print 4 or 9 cubes at once.Quote
The3rdIcon
I haven't dropped the speed down to 40 yet. I'll try that tonight but I would like to work back up to 60.
The side perimeter artefacts may be caused by a directly driven extruder, as far as I read, but that's not the case.Quote
The3rdIcon
My stepper motor drivers are A4988 Stepper Drivers. It is a geared and the extruder motor is mounted on the hot end.
The vertical ripples at the last photo, do they move if you move the cube a bit, maybe 5 mm?
Re: ABS Setting/Calbration Issues with Cura July 20, 2017 10:43AM |
Registered: 7 years ago Posts: 759 |
Re: ABS Setting/Calbration Issues with Cura July 20, 2017 01:02PM |
Registered: 10 years ago Posts: 26 |
Re: ABS Setting/Calbration Issues with Cura July 20, 2017 01:03PM |
Registered: 10 years ago Posts: 26 |
Re: ABS Setting/Calbration Issues with Cura July 20, 2017 04:31PM |
Registered: 12 years ago Posts: 799 |
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The3rdIcon
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Chri
Can you upload the gcode files ?
Chri
Sorry I didn't notice this before. I'll post it when I get home tonight. So you have a specific version in mind or just the newest one.
Re: ABS Setting/Calbration Issues with Cura July 20, 2017 07:58PM |
Registered: 10 years ago Posts: 26 |
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Chri
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The3rdIcon
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Chri
Can you upload the gcode files ?
Chri
Sorry I didn't notice this before. I'll post it when I get home tonight. So you have a specific version in mind or just the newest one.
the one which you think is the best so far and from which you want to go further.
also X/Y/Z Acceleration and Jerk of the FW would be good to know.
Chri
Re: ABS Setting/Calbration Issues with Cura July 20, 2017 08:46PM |
Registered: 10 years ago Posts: 26 |
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The3rdIcon
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obewan
Try printin 2 cubes at the same time, this will allow extra time for the layers to cool
I understand this logic but wouldn't the benchy test be a work around?
Re: ABS Setting/Calbration Issues with Cura July 21, 2017 02:14AM |
Registered: 12 years ago Posts: 799 |
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The3rdIcon
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Chri
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The3rdIcon
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Chri
Can you upload the gcode files ?
Chri
Sorry I didn't notice this before. I'll post it when I get home tonight. So you have a specific version in mind or just the newest one.
the one which you think is the best so far and from which you want to go further.
also X/Y/Z Acceleration and Jerk of the FW would be good to know.
Chri
I'm already tracking 21 different variables. I don;t think I want to keep tracking more and more because I'll loose site of what is important. I'm not even sure if I'm tracking the right things now. I'll add it to my list for the time being. Can you tell me what this helps to improve on my print thou?
Re: ABS Setting/Calbration Issues with Cura July 25, 2017 11:15PM |
Registered: 10 years ago Posts: 26 |
Re: ABS Setting/Calbration Issues with Cura July 26, 2017 04:28AM |
Registered: 7 years ago Posts: 201 |
Re: ABS Setting/Calbration Issues with Cura July 26, 2017 01:18PM |
Registered: 10 years ago Posts: 26 |
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Inhumierer
Your calibration cube top surface looks way better now. The benchy chimneys show lots of signs of too hot layers, they didn't have enought time to cool down. They're literally melting while printing.
I don't know which Cura version you're using. Mine doesn't have coasting integrated, so it must be a different one.
cool_min_layer_time is too small for ABS, try 30 or 45.
Usually for a bowden extruder you need a retraction of 3 to 8mm, but with a HE mounted geared driver like yours you may reduce this to 1mm, may reduce stringing.
Your cubes still have strange, regular vertical ripples at the sides. Do they change when reducing the speed, or do they wander when slightly changing object placement?
Re: ABS Setting/Calbration Issues with Cura July 26, 2017 01:21PM |
Registered: 10 years ago Posts: 26 |
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Chri
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The3rdIcon
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Chri
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The3rdIcon
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Chri
Can you upload the gcode files ?
Chri
Sorry I didn't notice this before. I'll post it when I get home tonight. So you have a specific version in mind or just the newest one.
the one which you think is the best so far and from which you want to go further.
also X/Y/Z Acceleration and Jerk of the FW would be good to know.
Chri
I'm already tracking 21 different variables. I don;t think I want to keep tracking more and more because I'll loose site of what is important. I'm not even sure if I'm tracking the right things now. I'll add it to my list for the time being. Can you tell me what this helps to improve on my print thou?
Ok, then i`ll try it without the informations.
First of all, Acceleration, Yerk and Printing speed are one of the most important basic values to achieve good print quality.
Especial on a relative weak printer like this Folger tech it`s probably not good to have this values very high.
as other people also recommended, your printing speed is probably way to high, the per layer printing time without Filament cooling and ABS should be at least 15 seconds to be on the save side.
on even smaller objects it may have up to 20 seconds.
So check how much time one layer will take (not the first ones) and slower the speed until it takes at least 15 seconds.
the waves at the side have all three values involved, printing with to high speed when Acc and more important yerk is set too high.
the easiert way is to print not so fast, the second way is to lower acc and yerk so you can print faster again.
8 Top layer are way too much at 0.2 layer height, with this so will store too much heat energy at the top and also loose the "self regulation" function when flow is probably set too high.
3 to max. 4 layer should be enough.
Your Hotend temperature is also probably at the lower side whats recommended.
For example i`m only printing very tiny abs parts with 225°C because to not get too much heat energy into the part, this lowering also makes the part more weak as the material does not bond so good anymore.
normally you should start with about 235°C to 240°C to also get good bonding, later when printing faster you can go even higher (up to 250°C is normally save and depending on the vendor).
When i check your settings you probably have most of them still set to the default UM settings, they won`t fit your printer as they are too different.
Best way for you is to at least reduce all speed setting to the half value, if you want to print faster you can speed up the printer while printing with the M220 command.
You can export the printsetting with Cura 2.6.2, upload it here so we can check also this.
Chri
Re: ABS Setting/Calbration Issues with Cura July 27, 2017 02:49AM |
Registered: 7 years ago Posts: 201 |
Oops, I'm using Cura 15.01 - from Jan 2015 I never looked for newer versions, I admit. I'll give the newest version a shot when back from holidays.Quote
The3rdIcon
I'm using cura 2.6.2 mostly because of the infill options. I've considered switching to slic3r. The one thing I don't like about Cura is when I've tried to increase the min layer time if I make it too large it will not let me slice.
[...]
As far as placement on the build plate to test if the ripples wonder. Is there a distance you can recommend of how far away from the original location I should put them? Are we talk 1 mm, 5, 10 or larger?
Re: ABS Setting/Calbration Issues with Cura August 03, 2017 03:38PM |
Registered: 10 years ago Posts: 26 |
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Inhumierer
Oops, I'm using Cura 15.01 - from Jan 2015 I never looked for newer versions, I admit. I'll give the newest version a shot when back from holidays.Quote
The3rdIcon
I'm using cura 2.6.2 mostly because of the infill options. I've considered switching to slic3r. The one thing I don't like about Cura is when I've tried to increase the min layer time if I make it too large it will not let me slice.
[...]
As far as placement on the build plate to test if the ripples wonder. Is there a distance you can recommend of how far away from the original location I should put them? Are we talk 1 mm, 5, 10 or larger?
For the offset from your pictures I'd say something about 5mm would be a good try.