There does appear to be some level of curve within your bed mesh, but the skew of the bed definitely shows that the bed is not level across the X axis. If you have manual bed leveling, work on the adjustment across the X axis before taking new mesh samples. Mesh compensation will definitely do a decent job compensating for a skew even as large as four layers worth, but the dimensional accuracy of the bottom of your parts will take a good hit printing like that.
What does the bed mesh in Fluidd show? My prints are good, nothing to complain about, but I see the bed mesh doesn't look so good.
Submitted 1 week ago by nieceandtows@programming.dev to 3dprinting@lemmy.world
https://programming.dev/pictrs/image/c8763d06-808b-490f-808c-e9262fc8912a.png
Comments
jrgd@lemmy.zip 1 week ago
Malcolm@lemmy.world 1 week ago
In addition to what others have said, it can also indicate different issues on different printers. Is it a core-xy or bedslinger?
If it’s not just an issue with a dished bed, there could be twist along your x-axis which are moving the nozzle (or probe) slightly further from the bed in the middle. Could be wire/bowden routing putting a slight strain on the toolhead.
Do the mesh results look roughly the same when cold versus, say, a 30 minute heat soak?
nieceandtows@programming.dev 1 week ago
dual_sport_dork@lemmy.world 1 week ago
Make sure the edge of your bed isn’t resting on something it ought not to be and/or doesn’t have any crap stuck to the underside of it. My Qidi has two plastic tabs sticking up at the rear which are supposed to be end stops to assist you in lining up the magnetic plate back onto its base, but if you’re not careful you can wind up with the back edge of the base siting on top of them which has the net effect of making the build surface the equivalent of about a 1:64 scale skateboard quarter pipe. This has predictable results if you try to print anything on the back third of it or so.
nieceandtows@programming.dev 1 week ago
AverageGoob@lemmy.world 1 week ago
What I have used as a rule of thumb is to keep the difference below .2, .6 is a huge difference in my mind and is making your printer work much harder to compensate for the large difference.
fufu@feddit.org 1 week ago
Klipper with proper mesh and a reliable Probe on a fixed bed can handle 1mm range without any issues at all.
Fribbtastic@lemmy.world 6 days ago
Always consider the “range” of the mesh. Just looking at the shape or the pretty colours will seem like the bed is completely borked even though it isn’t necessarily so in reality.
For example, look at your “range” value; it says that the difference between the highest and lowest point is 0.6004, which is in mm. Meaning: that difference is 0.6mm
That isn’t that much and not really something to worry about. In some cases, where the corners are different to the rest of the mesh, it could be that the wheels on the underside of your bed can be adjusted to make the bed flatter. This would require that your bed actually has those things but I wouldn’t necessarily bother with it since your range is already that low.
fhein@lemmy.world 6 days ago
It’s also only the 50mm closest to X-axis 0 (left edge of bed I guess) that have significantly higher values, the rest of the bed is fairly even. Depending on what models OP has printed, they might not even be using this part of the print area.
nieceandtows@programming.dev 6 days ago
Makes sense, thank you