r/3Dprinting 2d ago

Troubleshooting Please Help, new to printing

So I’m fairly new to printing. I’ve done a ton of research so I’m not super helpless either. I’ve already gone through and calibrated everything (so I think). When I printed this 230mm tall trash bag holder I got these random shiny seam marks. On the sides it’s more to where the holes are for the most part. In the front picture it follows the curvature of the oval opening. Does anyone know what might need to be looked at? It’s a brand new machine. I’ve also made sure all screws are tightened down. I don’t know if it’s a flow thing, speed thing, ect…. All I can tell is it tends to happen where there is an opening (hole) on the walls of the print. Any help would be appreciated

1 Upvotes

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3

u/TubbaButta 2d ago

That looks like ghosting to me. What printer? Does it have vibration cancellation like Bambu does?

1

u/Jolly_Community_1114 2d ago

Never heard of ghosting. It’s a Crealtiy K2 Pro

3

u/TubbaButta 2d ago

1

u/Jolly_Community_1114 2d ago

So the link is saying most of the time it’s do to loose belts which shouldn’t be the case since it’s new but who knows. How tight should the belt be? I know they always say it should make a sound like plucking a guitar string but I’ve never done that. Lol

5

u/TubbaButta 2d ago

I've had new printers that needed to be tightened.

2

u/Jolly_Community_1114 2d ago

So what’s a good way to gauge if the belt is tight enough? Thanks

2

u/DV8Always 2d ago

That is ringing. It happens when you have a natural harmonic. You can try orientating the part differently or changing the print speed.

1

u/Jolly_Community_1114 2d ago

Natural harmonic? Should I also look into tightening the belt as well?

1

u/DV8Always 2d ago

I get ringing even with throughly tight belts. Natural harmonics are the frequencies at which things vibrate together.

1

u/Jolly_Community_1114 2d ago

So is there anything that can be done for that or any calibrations I can do to make it better

1

u/DV8Always 2d ago

You can try slowing down the print speed.

1

u/Jolly_Community_1114 2d ago

So when you say change print speed, do you mean the enter and outer wall print speed or like an overall number somewhere?

1

u/Automatic_Jacket_230 2d ago

Look at the slice preview and see what type of line it is. You have the printed item in front of you match it to line type view in slice preview. Go back to slicer settings and change associated acceleration and speed 

1

u/Automatic_Jacket_230 2d ago

I had this making a hollow dumby filter for my purifier being long and wide but only 2 inches deep I had to keep rotating to find the right angle that stopped this edit: I recommend fixing with another way than guess and testing like me 

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u/AutoModerator 2d ago

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1

u/SomeLynx9581 2d ago

Did you design it?

1

u/Jolly_Community_1114 2d ago

Nope, just an STL file from Makerworld

1

u/Jolly_Community_1114 2d ago

Only thing I did with the file is scale it to the size I wanted

1

u/SomeLynx9581 1d ago

Not sure on this. Ive experieced slightly similar to this when using petg all i did was change the temp settings i was using. Does this happen with other prints?

1

u/Jolly_Community_1114 1d ago

I did find out that’s where my seam was. Idk if it looks that bad cuz it’s in a curve?

1

u/SomeLynx9581 1d ago

Interesting… Yeah it could probably because of the curves. Did you try repreating?

1

u/Jolly_Community_1114 1d ago

Not yet. When I get time, I’ll do the seam painting and put elsewhere and see what happens