New owner, first prints are somehwat... sobering

Hey,

just recieved my new X1-Carbon. After years of problems and fiddeling for every print on my Sidewinder I took the plunge and invested in a hopefully more hassle free machine.

Right out of the box my first prints are a little underwhelming, I think there’s something not right.

Everything was setup as stated in the guide / wiki. Printed all with default settings and fresh rolls of Bambu Basic ssilver PLA out of the box. Machine stands on a solid desk with a massive concrete plate and a vibration matt.


At first I thought it might be the y belt, so I did the calibration right of the wiki. The green PLA that came with the X1 came out better… but another benchy shows still the same flaws. Material issue? :confused:


Any hints what might be wrong there?

Appreciate your input!

Best regards!

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After coming from an Ender 3 S1 Pro I was really happy with my first prints, and everyone since, I have even reprinted most of the Skadis pegboard items, and they are all far better.
I am not anything but an hobbyist, so not too sure about the quality levels, but compared to my previous printer, my P1P is a millions times better.
Maybe it will settle and you will see better results

Yeah, something seems off. I’ve also printed the benchy with the green PLA that came with the printer and it’s better. Unfortunately I can’t tell you what it is. Perhaps try to recalibrate the axis by loosening and fastening the belts (video is on the wiki) and running the init sequence again.

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Did you slice the files yourself or did you use the built in ones on the printer? If you used the built in ones, don’t do that.

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I did use the built-in one. Came out perfect.

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Thanks for the feedback, this was printed via the internal pre sliced one. Also tried the belt “calibration” in the wiki and ran the selftest afterwards as stated. We’ll see how it will go on with a self sliced one or some more prints. :confused:

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You’ll also want to look at drying the filament if you haven’t already. While PLA doesn’t normally need drying, the speeds that BL printers run can create issues even with the low moisture gain of PLA.

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Thanks Simon, the rolls came fresh out of the sealed bags, so this shouldn’t be the issue here I think.

You’d be surprised - I’ve seen some pretty dramatic improvements by drying PLA (more specifically PLA-CF), even though it was a brand new roll (freshly unsealed).

Not the types of moisture issues you see with PA or PC, where the print fails utterly…but those more random quality issues that you’re showing I’ve definitely seen from PLA filament that was not dried before use.

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Hmm, guess I’ll have to do some more drying / printing :wink: Thanks for the input.

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Especially Benchy 1 and 2 look like they have an issue in regular vertical intervals. Therefore I’d check if your leadscrews are OK (straight, clean, etc.).

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thanks @hho I’ll have a look! but wouldn’t the green one look similar then?

I think it does:

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What kind of temps you have in chamber when you print? It is very hot now here in Europe. If you have more than 40 C in chamber when printing PLA, your prints wont be so good. PLA chamber max 40, PETG 40-45 for best results. Thats according to my experiences with X1C.

@djeZo888 thanks for the input… closed buildroom is new for me, and yeah it’s mad hot right now… I’ll try again with an open door and remove top panel. IMHO build room was around 40°C

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Something’s not right to produce those prints. Cooling could be an issue especially as things look worse as the layers take less time. Check fans are working properly.

FWIW, 3D printers are not hassle free machines. Some are easier to use than others. All require tweaking to get to the desired outcome.

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Yes I’m aware of that after tinkering years with my old one. Just learning the quirks of the new one. But oh boy is it an upgrade to my old bedslinger :slight_smile:

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To give an entirely unasked for elaboration on the importance of drying when dealing with the print speeds that BL hits:

This is the first printer I’ve used that has to take into account the max flow rate for a given filament – the print speeds can get to the point where the thermal transfer through the filament in the hotend is not sufficient, leading to flaws in the print as the filament is unable to exit the nozzle fast enough…and then rebounds as the filament that was “trapped” is heated through and suddenly flows easier…lather, rinse, repeat.

Filament (esp PLA) with some minimal moisture normally wouldn’t be an issue at all…but when you’re already pushing the bounds of max flow, that little bit of moisture slows down the thermal transfer just enough to lower the effective max flow rate below the levels that the software is configured for.

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That seems logical, but it is not true. I have had new filament out of the vacuum sealed bag print badly. In fact that was what prompted me to buy a dryer. I wanted to prove that it could not be a moisture problem. After drying the print was perfect.

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