3D prints stick WAY too well!

[xchrisd]

I am sorry to say but, this is a useless discussion here.- Nobody knows what kind of filament you/they want to print or have printed.

Also saying, “my offset is 0.2” or “my offset is 0.15” makes no sense.
Did you compare your leveling results and do you level the machine from others to be sure there is nearly the same resistance of the calibration sheet?
@Carsten, @BillR94

I suggest to calibrate the bed while connected with usb and preheated with Luban,- so bed-temperature would be the same the whole leveling process (I print PLA, PETG, Semiflex with 60°C bed, ABS with 80+°C)
If you do a bit of searching in the forum you could compare your leveling results with others to see if your bed is more warped like others.

This is the only thing you can do to see if your first layer is good:- look at your first layer while printing:

3D prints stick WAY too well!

This is helfull for determining your z offset [image] Also next time you have an issue with it just topping extruding check for this: [904dac0c25256b49f2056c7c543f8c8212fcfb34_2_1000x1000]

On achieving a perfect level

Here’s a profile of how the Z changes with heat. This was done with a Dial Indicator at the center grid point of an A250. Points out on the edge of the bed are likely different. Z units are in millimeters. [Z-Temp Curve]

On achieving a perfect level

Hey @Tone, i wanted to share my dial-indicator results with you (A350, 5x5 grid): The heatbed itself is uneven itself, it compenates a bit while heating. Heating for 30min vs start printing right away after heating, difference of the points about 0.01mm to 0.2mm. Heating for longer than 30min (60min) brings no more essential expansion to my heatbed, ~0.02mm. heated bed without print sheet: cold difference MIN/MAX: 0.86mm hot difference instant printing MIN/MAX: 0.64mm hot difference 30min…