Is this a warped bed?
Hello
I need a little advice on fixing a MK2S printer.
I'm really strugling with getting a nice first layer or just a get decent looking print on this machine.
When I do the built in first layer calibration I get the first lines to stick fine with around .600 to .700 live z height wihout problems.. But as the lines moves towards the display, I'm getting problems with it not sticking.. However Using live Z-height of .900 i now got all the lines sticking to the bed.
This makes me suspect a warped bed, so I print some other bed level tests like this one:
This is the best result I've gotten, but as you can see the squares dont look to good towards the display, also i get these marks on every square that I guess is the nozzle to close to print?
Also tried connecting Octoprint to see what the bed level mesh addon would show:
https://imgur.com/a/LGIfIps
To me this looks bad, but you do you guys think? Do i need a replacement bed or is there anything I can do about it?
One trick that costs nothing to try:
Remove the print sheet. Loosen but do not release the 4 nuts holding the heatbed.
The next bit is tricky - take care.
Heat the bed to 50 or 60 degrees, wait ten minutes then drum your fingers on it (hot) and run it back and forth a few times; then turn off but while still hot retighten the heatbed screws.
This should take out any uneven thermal expansion. Run your calibrations again and let us know how you get on.
Cheerio,