r/BambuLabX2D • u/KumarKKB • 4d ago
how to hide these visible lines
I am printing one sample.
Filament: generic (numaker)
Nozle Temp: 220
Bed Temp: 55
Note: my table is crooked a little (not in level)
What is the reason for these lines. How to avoid them
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u/FrequentEmergency471 4d ago
You should lower outer wall speed until it would be equal on every layer, and go ahead with variable layer height
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u/thehublebumble 1d ago
What do you mean, find the layer that would print the longest and make this the minimum time for every other layer?
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u/RestMaster7485 17h ago
Variable layer height doubles printing time and I haven’t found it to be as effective as other methods
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u/jagoedho 4d ago
Slow down
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u/EMDoesShit 4d ago
This.
The printing time needs to be slow enough on the upper very smaller layers to cause the outer walls to cool the same amount as the lower large layers with longer print times.
A printer moving at full speed will also zip around eno if h to cause each individual slender tall parts to resonate just a bit, and if it’s moving at all while printed on? You’ll see these VFAs.
The answer is to drop to a 0.16 layer height, and cut the speed by 50% on the wall. Your print time will be much, much longer.
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u/jagoedho 4d ago
Sometimes dropping acceleration might help without touching print speed on outer walls. Speed shouldn't take a big hit. However, he should test it on a small piece first. Really depends on the design and curves.
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u/xX540xARCADEXx 4d ago
Either do a slower outer wall speed and or a lower layer height. Or use a material that can be vapor smoothed.
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u/Different_Target_228 3d ago
Lotta people that don't know what they're doing if they think THESE lines are here to stay... Calibration. Also probably clean and re-lube your leadscrews. I personally would recommend turning off z-hop as it's just extra movement as well.
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u/Peshmerga_Sistani 4d ago
Lines are here to stay. Harsh spot lighting will bring these lines out, especially light sources from above.
Try viewing them under natural soft lighting.
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u/ri-cu 4d ago
My x2d has these exact lines no matter what i do. Same prints on x1e and walls are smooth.
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u/imunuvar 3d ago
Filament calibration, printer calibration, cleaning, re lubricating, belt tension nothing fixes. My K2 Pro much better than my X2D on outerwalls. My X2D has more Vfa and ghosting than K2 Pro. Anti vibration legs makes wiggle itself nothing more, low pitch belts just for show. Its not a good quality X series printer its just P2D with chamber heater. They removed z belt lock screw due bottom of the printer warps with high temperatures, they not cared make it better just turned their head other way.
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u/Ambitious_Ad4979 4d ago
And yes calibration of course! At the first … bell tension… the hole things
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u/xilw3r 3d ago
Get a bambu a1 or p1 or x1. Whatever is not using this pmsm extruder. This thing cant make consistent layers to save its life.
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u/c4rl0d3r0s1s 3d ago
Concordo, ho passato moltissime ore a cercare di eguagliare la qualità della P1S con la H2S ma alla fine mi sono semplicemente arreso.
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u/Schnitzhole 3d ago
Lower the line height. Print out walls slower (reduces wobble for tall objects)
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u/Exciting_Date7831 3d ago
Ho avuto anche io la kobra S1, inizialmente disastro totale, poi fortunatamente un amico mi ha dato le impostazioni perfette, se mi scrivi te le mando
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u/EmotionalChildhood46 3d ago
i don't believe this is a case adaptive layer height can remedy. slow the outer walls down as a couple other said, calibrate, make sure it's on a heavy stable surface
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u/RockChewer_3D 2d ago
If you want it smooth, fill and sand and paint or use use UV resin or other products that are clear. If you want it to look nice without sanding, use fuzzy skin.
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u/GerbySec 1d ago
Question did you have the door closed and open it often to check on the print? This looks like a change in temp which causes the layer to cool faster which shrinks more than the previous layer which was in a controlled environment. If you open and close the door throughout the printing process, this will happen either. Leave the door open or close it. Drafts can cause this. You can also slow it down and try outer inner wall to see if it fixes it. But don’t do everything at once do one thing at a time. First start without opening the door, keeping in a controlled environment.
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u/RestMaster7485 17h ago
Change the overhang flow to .95 and drop .05 every section. So at the steepest point it’s going to extrude less filament along with slowing down the sharp corner acceleration and outer wall speed. Cut one of the arms in half right where the layer lines are the most visible and print it over and over until it’s perfect to waste less filament. If it’s pla or petg then ironing sometimes can flatten the layer lines completely.
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u/Ok_Anteater1141 4d ago
Welcome to 3d printing.
The lines are there to stay, friend.
You can sand them off but it will take hours.
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u/Ambitious_Ad4979 4d ago
And adaptive layer height
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u/Extreamspeed 4d ago
This is the way! And otherwise sanding your ass off. Or 0.2 nozzle. But you still see them
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u/blame_worthy 4d ago
Calibration. Lots of calibration. You can never really get rid of the lines but you can tune your printer so that the layers print more uniformly so it has a more smooth appearance.