3dhull
1
Hello fellow 3d print guys. I have a problem I simply cannot solve. I am getting misalignment layers in my print. They are the same height and location every time. However if I print other files they are perfect. I have redone the gcode many times tried different settings .e.g. speed. Infill. Checked belts, rods even had my extruder apart twice. Nothing seems to work. Your grand old wisdom is much appreciated I’m using pla at 215degress bed 60degrees infill 30% speed 50mm Flashforge slicer
Dumb question here. How does the slice look at that layer on the preview window? Is it possible that you have a slight misalignment within the design? On my Dreamers, for intricate models, I turn the outer most perimeter speed way down, otherwise this can happen especially on complex curves. Check my slicer settings on the picture.
My first suggestion is slow the overall down to 35-40mm/sec and see if it improves. Also seems a bit hot for most PLA. I’d try 195-205 and see.
You can run the model through a fixer also just to make sure it is ok.
Try moving the item to a different location on the bed. You could have build up on a belt
Good idea and reminded me of an issue I had a long time back.
check, clean and lube the Z axis lead screw. Mine, on a similar machine had gotten dirty and dry from always running in the same general range and when I did a taller print it then went out of the range it had been in and got some resistance and caused the bed to skew slightly horizontally from the turning motion shifting the layers.
3dhull
6
Hey. Iv tried that I have even rotated the file. yet the lines always are on the same location of the print
3dhull
7
Hey. The slice appears to be spot on. The file is only one section of a much larger file which was cut and repaired on netfabb. This is file number 15 of 16. Every other file before has 0rintes perfect. I’ve had the speed as low as 30mm but no luck
3dhull
8
Hey. I ran the file through netfabbs repair but still prints the same. I’m using flashforges own pla which says 210degress however i was getting much cleaner prints at 215 I’ve had the speed as low as 30mm with no luck
3dhull
9
Hey. I did suspect the z but I have printed other files perfect with no lines in the same location on the bed. I’ve tried this particular file 4 times and the lines are at the exact same heights
Sounds like a problem with the file. Try this service. Netfabb Online Service
It is the best file repair service I have found and it is free.
See if you can “sink” the model lower on the build plate so that the “bad” area prints at a different height in relation to the bed. In some slicers you can lower the model through the build plate so that only the part about will print. This could eliminate the model as the problem. Also is the layer shifts more prominent on a particular side? This is how I discovered the lead screw was causing the bed to turn on its axis ever so slightly. The layer shift was on the side that would be against the rotation of the lead screw. In other words the bed moved in a counter-clockwise direction and the shift stuck out on the right side of the model the most.
Other things would be to see what could be binding at those heights. Is something hitting the cabinet?
I suggest a good cleaning before continuing…
Not location on the bed but height. Every model started to get the lines at the same height.
3dhull
14
Just the one particular model gets lines at the set heights other models I’ve tried don’t get the lines at the same heights.
3dhull
15
I have rotated the model 180 in z axis but the lines remain in the same location of the print whichever way I rotate which leads me to suspect it’s the file itself. Or the settings in flashprint. I’ve checked every component for binding slipping. Loose screws. Pulleys. Cleaned rods and lead screw. As for the file I’ve repaired it in netfabb. It seems very odd. I’m going to try printing it in flashprints fine setting although it doubles the print time
Ok, well that is probably a good sign. See if you can lower the model through the build plate in the slicer so the affected area is closer to the bed (shift the Z position of the model down). That way you may see if the lines remain in the same location on the model or they print at the same height off the bed. We want to see if we can tell if the shift is in the model or with hardware.
Another thing to look at is the infill or anything in the model in that area that may be different. Also how many perimeters are you using? If only a few try with more. I had one recently where the infill was pushing through the perimeters on the lower layers. It was an odd one.
Ok, so if the lines are on the left side and you rotate 180 the are now on the right? That would sure seem like the model. Is this the latest version of Flashprint?
I would be willing to try a print to see if it still does it but it would be on a Creator Pro so not the exact machine.
3dhull
18
that is correct. latest version indeed, ive uploaded the file if u wana giv it a blast, thanks for your expertise thus far
chest3g.stl (10 MB)
How about MakePrintable website?
How about Simplify3D slicer to generate the .3g file.
I have looked at the file in my slicer and don’t see anything obvious. I did notice however that it will generate supports if I turn it on. I will have to look closer but I wonder if these overhang areas on the inside of the print coincide with your lines?
Haven’t had time to try a print yet.
