Hello, I have a problem with my prints. I have X/Y wobbles on my prints when printing with Cura. When I print with Slic3er these wobbles are almost invisible. So I think it must be speed related since Cura prints visible faster than slicer. My first thought it was due backlash of the X/Y belts so I did not looked further into it because I was planning on buying GT2 belts. But today I started printing with these new GT2 belts, same problem. And the weird thing is I get the exact same waves then with the GT5 belts. They are as wide as before. On this photo you can see the problem:
I also checked the bearings again when changing the belts to make sure everything runs smooth and it did. My belts do vibrate when doing infill but not so much with outer layers etc. This time I also added springs on the belt to function as tensioners. I don’t really know if this is good or not but I read it somewhere that it compensates a bit for uneven pulleys.
One last thing I noticed with these new belt and pulleys is that the pulleys are smaller in diameter. Therefore the belt goes “downhill” to the moving bed. You can see this in this photo:
not neccessarily, a similar setup works just fine over here. But the tension of the belts seems to be a bit low, at least if the force the springs produce upon bending is comparable to mine.
I could try to tension the belts a bit more, the only problem is the Y-axis. Do you have a better way to tension these. The original setup is almost impossible with the GT2 belts because the tooth don’t fall in the groove of the clamp.
Did you already had x/y wobbles before? It is very strange that the intervals between the wobbles did not change even the belts/tooth are so much smaller now.
Btw any idea why cura moves visible faster then sli3cer even when all the speed settings are exactly the same?
Is there anybody on the forum that has experimented with belt tension so far? I’m still having “problems” (Just don’t like the look of it) with these slight X/Y wobbles. I’m planning on upgrading my K8200 with all the parts neccesairy to be able to adjust the belt tension really quick. This way I can print an object and raise the belt tension each 10 layers or so. Then I will be able to see if these wobbles get worse or better…
I started this topic a while ago, I tried several things and I can’t get completely rid of the wobbeling. It reduced it to an acceptable limit by testing different belt tensions. But since today something completely different happens. Each print I do (and I did not change anything) has rough outer edges. It looks like the wobbling from before but now it happens at complete random. So you get a rough outer edge. What can be causing this? While printing the table looks to be struggling when moving around but when free-moving the table everything runs very smooth… I never got this problem before and I have no clue what is causing this all of a sudden. This example is printed in ABS, I re-tried in PLA and the results are the same…
I’ve been using Cura for over 3 months without the need of using Slicer again but since I did not find any clue on why this was happening I tried the same object in Slicer. What I see now are visible Z-wobble (but just very slightly). The random wobbling in X/Y direction are gone, now I have the repeating X/Y waves again that I posted in this topic in the beginning. But I also see allot of little blobs at the surface… I have to say that the build platform had not that “struggling”-behavior as a stated before but it printed much faster so maybe it was just not that clear this time. I’m thinking this has something to do with wrong extrusion? Something else I noticed with Slicer is that the layers are smeared out quite allot, again: extrusion problem?
