Printing issues with Soleyin Ultra PLA - Grey Only

Flagship K Series Creality Flagship K2 Plus & CFS
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I have a Creality K2 Plus 3d (firmware 1.1.4.11) printer with the CFS (firmware 1.1.3) attached.

The CFS currently has in it Soleyin Ultra PLA Black and White and been printing no problems for months.

Today I added a Soleyin Ultra PLA Grey, configured on the front panel as Soleyin Ultra PLA and also in Creality Print 7.1

When I print with the grey filament it’s causing it to jam up in the extruder gear kit, resulting in having to take it apart and remove the clump of PLA jammed in between the ridged wheels.

I thought it was the CFS so swapped the filament and put the grey in the place of the working black. Same thing it jammed.

Is there something special / different about the Grey vs Black and White?

Could it be Creality Print 7.1, as I only upgraded today?

It appears to be printing with the extruder at 220C does that sound right? With a pressure advance of 0.6

I’m using the same print settings (default settings from Creality Print) for all the colours.

I’m confused.

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I have had issues with the Soleyin Ultra PLA as well - although I don’t have a solution for you as I’ve been just muddling my way yhrough things myself. I have issues with both grey and white. The white tends to pick up on the nozzle while printing - while the grey the trees seem weaker and i’ve had to adjust setting there….

all the best - hopefully others can help more , but i’ll be following along for more info myself

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I too have had issues with Soleyin. In fact I believe it was the gray also. One major thing that helped was really drying the filament before use

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so…. I’ve been struggling with my Soleyin Ultra PLA. I bought it for prototyping and general model testing because where I live it is 1/2 the price of Creality Hyper PLA. I had ‘assumed’ that using Creality’s recommended filament settings were good enough - but it turns out that is not the case.

I was coming to the end of the 10 rolls I had purchased, and it was go/no go decision time on whether I was going to continue struggling with using the Soleyin.

That is when I came across the following article on the Creality Wiki - and decided to try the Flow Rate Calibration built into Creality Print. Needless to say, I ran both the Level 1 and Level 2 Flow Rate tests. While my Soleyin problems have not been eliminated as of yet - they were reduced significantly. My Flow rate for Soleyin Grey is now 1.02 and for Soleyin White is 1.03 based on the testing I did. And I’ve already seen a marked improvement.

The following is the link to the Creality Wiki Calibration Tutorial Calibration Tutorial

Given “we don’t know what we don’t know”, I thought I would share this here in the hopes it helps someone else with less expensive or alternative filaments. It was well worth the hour of time to dial in the Flow Rate. I haven’t gone through the remainder of the Calibration options yet, but I did notice the Soleyin prints better after the first few layers - which would tend to suggest it doesn’t like the lower print speeds … anyway, that’s where I’ll be focusing next…

cheers folks - I hope this helps!!

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Thank you. I just had an issue where the print failed at the very end with what looks like a clogged gear also. I haven’t had a chance to open up the print head yet, but I will run these tests before I print again.