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01-25-2016, 02:57 PM #1
- Join Date
- Dec 2015
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- 9
Print rough higher up - Possible Causes? Please see pic with zoom
Hey all,
I wanted to see if any of you could identify the possible cause of this print getting more rough (it wasnt great to begin with I know) part of the way up? I used a 50x pocket microscope and it seems to be some small gaps (see in pic), but why would something like that start happening all the sudden after 20+ layers? I am new and learning so if you can tell me what types of issues can cause this I will start troubleshooting.
It was a ABS print with 100 bed temp, 220 extruder temp and it is repeatable.
Thanks in advance for your suggestions!
3d print rough changeover regular.jpg
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01-26-2016, 01:48 AM #2
Under-extrusion.
Extruder calibration is pretty much a visual process, as opposed to a measured process. Under-extrusion is not that visible at lower layers as they pressed up against the build platform causing them bulge out and produce a bit of back pressure. As you go higher this pressure is relieved and little gaps appear.
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01-27-2016, 01:28 AM #3
Also, the print is smaller higher up, so the time between passes decreases, which can also affect how the layers bind.
A good acetone smoothing will help those layers bond better post print, especially if the print is good enough to keep, but just to harden/smooth the layers out.
But follow SF's solution too, it's probably more right.
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01-27-2016, 06:42 AM #4
I would also add after you confirm your calibration, and if it's still present, try slowing the print down.
Qidi X Plus 3 Paper thin first...
05-27-2024, 01:15 AM in General 3D Printing Discussion