MK2.5s print bed issues
Two-part question:
1) Is there a point when it's time to replace the spring steel sheet on the print bed? I have been printing for several weeks in a row and prints were sticking just fine. All of a sudden, prints aren't sticking anymore. I've check first layer height, etc. I was using a glue stick and it helped tremendously for a while, then I starting printing blobs around my nozzle again. Has anyone else had a similar issue? What's the fix? Do I just need a new spring steel sheet?
2) We started having what appears to be a "hot spot" on the print bed, where parts are getting burned (see photo). However, if I check it with a laser temp gun, that spot doesn't seem to be "hot." The print bed also feels cooler than usual and seems to have a several degree different from one side to the other (see photo). What the heck??