Autolevel issues
I have my z probe setup working.
But I still have issues with the height of the first layer.
I have done the G32 S2, and after making sure the level is as physically as level as possible. A test with probing in different locations is quite good (paper under nozzle).
However when printing some arreas the nozzle is to high (no adhesion) in other the nozzle touches the bed (no extrusion on bed).
Could it be that the correction is done mirrored or in the wrong direction?
I will recompile my firmware to add z distortion so i can add it to the correction...
Comments
You may need to use G33 'distortion matrix levelling.
Ok I will give it a try this evening, how big should I make the grid?
(I'm using a prussa i3 clone)
I used a 6x6 grid which seemed to help. I ended up fitting a sheet of glass in the end tho,now nice and flat
I have a glass plate but it is to thick for the detection rang of the z probe.
Could I do the autolevel correction and home, and then place the glass and add the offset for the glass plate in the slicer for instance?
My glass is so flat atm i dont need to use ABL, just manually adjusted the screws to get the bed as levell as possible and printing 3DLABS aeroplane sections across the whole bed surface perfectly.
I did fit a BLtouch probe when i fitted the glass, but i dont need to use it <span></span>
Don't have z-max homing currently, but I plan to use my old z min end stop for as a z max switch.
Only need to figure out how to mount it...
The grid is defined in nozzle positions it seems
Grid are nozzle positions yes, but measured by z probe so must be reachable with nozzle and probe active.
It just does not make sense...
12:30:36.266 : Info:Autoleveling disabled
12:30:44.620 : Z-probe:4.236 X:20.00 Y:20.00
12:30:50.710 : Z-probe:4.247 X:20.00 Y:53.75
12:30:56.835 : Z-probe:4.263 X:20.00 Y:87.50
12:31:02.995 : Z-probe:4.321 X:20.00 Y:121.25
12:31:09.219 : Z-probe:4.401 X:20.00 Y:155.00
12:31:16.297 : Z-probe:4.138 X:55.00 Y:20.00
12:31:22.328 : Z-probe:4.149 X:55.00 Y:53.75
12:31:28.361 : Z-probe:4.151 X:55.00 Y:87.50
12:31:34.410 : Z-probe:4.182 X:55.00 Y:121.25
12:31:40.498 : Z-probe:4.231 X:55.00 Y:155.00
12:31:47.517 : Z-probe:4.042 X:90.00 Y:20.00
12:31:53.497 : Z-probe:4.083 X:90.00 Y:53.75
12:31:59.479 : Z-probe:4.085 X:90.00 Y:87.50
12:32:05.472 : Z-probe:4.098 X:90.00 Y:121.25
12:32:11.491 : Z-probe:4.136 X:90.00 Y:155.00
12:32:18.471 : Z-probe:4.013 X:125.00 Y:20.00
12:32:24.408 : Z-probe:4.010 X:125.00 Y:53.75
12:32:30.373 : Z-probe:4.051 X:125.00 Y:87.50
12:32:36.352 : Z-probe:4.081 X:125.00 Y:121.25
12:32:42.336 : Z-probe:4.088 X:125.00 Y:155.00
12:32:49.417 : Z-probe:4.145 X:160.00 Y:20.00
12:32:55.428 : Z-probe:4.118 X:160.00 Y:53.75
12:33:01.413 : Z-probe:4.090 X:160.00 Y:87.50
12:33:07.437 : Z-probe:4.129 X:160.00 Y:121.25
12:33:13.468 : Z-probe:4.152 X:160.00 Y:155.00
12:33:13.472 : plane: a = -0.0013 b = 0.0006 c = 4.2071
12:33:13.481 : Transformation matrix: 0.999999 0.000000 0.001301 0.000001 1.000000 -0.000634 -0.001301 0.000634 0.999999
12:33:13.483 : CurrentZ:4.21 atZ:4.13
12:33:13.485 : Info:Autoleveling enabled
The result is quite good i think.
But when i start a print still the left side X 20 to 100 is the nozlle to close to the bed!!!
It is just nog doing what it should do, or is there somethnig else worng?
Of course you can also add bending correction for x 20 so it adds some more at that side to compensate the error.