Anyone know what’s causing this? Every time my printer attempts to print inclines, it always comes out like this. It looks like Z banding, but it doesn’t happen on 90° faces. This is at 100μm, 60mm/s, PLA at 200°C.
Are your axis running smooth?
How do the inclines come out if you print slower?
Do you have any springs tensioning your belts? If yes, remove them.
This looks like ringing. The tensioners add springiness to the carriage.
You just need to ensure that there is no play. The carriage must be stable.
Tighten any belts, and ensure there is no play.
I had the same issues and resolved it by ensuring everything is tight, and no removed the belt spring tensioners.
How many shells are you printing? Try with at least two.
Do you have a picture or good description of your printer?
@Panayiotis_Savva No springs, but I do get some X banding, so lack of tension could very well be the issue
@Neil_Darlow I believe I have my slicer set to 3 shells
@NathanielStenzel It’s admittedly a cheap Chinese Prusa kit. I figured I could buy cheap and then upgrade parts of it as I see fit.
I’m also going to try lowering the temp and maybe adjusting the flow rate, because looking at a failed print of this part when my heating cylinder was going out, it seems the jagged edges were less prevalent (at the time, that print was running at a very cold 160C).
Does the banding happen to match your belt pitch? It looks to me like either an idler or pulley causing the belt to wobble on that axis.
do you use cooling? also try different plastic? I always use fan blowing air over print, even with abs, for me it looks like temperature issue maybe? did you make sure heating element on the printer head is screwed on tight? and make sure heating block is isolated well, wrap it in glass fiber and tape with kapton ? maybe , maybe also try to use different slicer as well, and check printing speed, maybe you are spending too much time with tool head in one place? Good luck. try to print some stress tests and change settings around to see what match - certain plastics. From my exp some PLA and some ABS filaments are not really what they claim to be, sometimes cheaper is actually better hehe
Is the bottom picture the bottom of the print?
@NathanielStenzel It’s a different part printed before the one I’m having issues with.
@Piotr_Sitko I’m properly cooling it. The head could be loose, I’ll have to make sure. I think you’re onto something with the print speed though.
I’ve just been speaking to @Ryan_Walmsley he had this exact same issue. Turned out it was a bad bearing, he just changed it and solved the problem.
@Daniel_Bull The bearing for linear movement, or for the belts?
I was experiencing this quite bad and it seemed to be noticeable the most on the Y Axis. I’m currently rebuilding a printer which needed some bearings but ordered some spares for my current one. I decided to swap them out and the result was a big improvement. Same GCODE etc.
I went with the polymer bearings but noticed when replacing that a ball fell out of one of the bearings on the Y Axis so I would guess a replacement standard ball bearing one would have also fixed this issue.
missing/deleted image from Google+