software bedmesh doesn’t seem to translate to physical bed
Basically I have my the current bed mesh that’s with 0.2 variance. The middle dip seems to be more of a bed problem. I have tightened and retightened X gantry and y rails but always end up with this shape.
Nevertheless it’s an acceptable variance. However the low areas are to far from the nozzle and the upper areas are too high. So it seems my physical bed is not properly moving up and down according to the bed mesh.
Am thinking not enough z torque or lube to the z rods? My steppers are uncooled so using the uncooled configs for the steppers if that makes a difference.
27 Replies
hehe I recognize that print
🤫
My baby needs cooling
But honestly - looks like it isn't sticking well. I would baby step it down a little and clean the build plate with soap and water, then IPA then let it dry
I thought so too many time, but doing just the base now and …
It’s absolutely fine. But for bigger prints the bed mesh variations kills me
Only thing I changed is that I put only the base to print instead of all parts spread out.
what does your first layer look like? Do you have enough squish?
It looked like this. So perfect
I didn’t take a pic when I started just the base, but I watched until it was done.
there are gaps there - so to me that says you need a tiny bit more squish. Also what speed are you doing for your first layer?
printer config
Where did you see gaps???
Bottom right corner even has some over extrusion due to bed being slightly closer there
I usually print at 40mm for first later but for this I did 25mm/s
Yes
That’s the problem the top part is not properly compensated
if I recall correctly I had to lower my bed to get the right squish and then I had to lower the EM for the first layer because by default it was like 130%
but you are even seeing it on the bottom part
I meant upper section
Bottom right corner for example is overextruded because of being closer to the bed
My first layer line width is .45.
On a 0.4 nozzle
yeah that's fine, I have that too
I believe by default it is higher than 100%
Let me check real quick
My son is on his Minecraft hour 🙈
He gets to play from 19h to 20h
I would still lower your nozzle some more, but that is me
I have done that but then stuff gets over extruded where the bed is 0.1 higher 🙁
You could try increasing the probe points to make the mesh better?
It’s 10x10 from 7x7.
[bed_mesh]
speed: 300
fade_end: 10.0
mesh_pps: 2,2
horizontal_move_z: 5
probe_count: 10,10
Ok did I a full reinstall and it’s working now properly. Guess something in my install or updates was corrupted :/. Although I always update ratos before doing anything else.
Edit: Can again see the z rod move up and down slightly while printing
suggestion: adda little 'flag' to the base of your Z lead screws. A simple peice of blue painters tape wrapped around as a flag makes it easy to see the screw rotating as you print.
Aftfer awhile,,, you can almost mentally track if the screw is following the mesh you are currently running
I kid you not i was thinking of the same, but to just draw a small blue line on top of the lead screw 😅