A while ago I bought a kit for a 3D printer, along with filament etc. however, after some weeks I ran into some mechanical problems and because I had a lot of other things to do at the time I put the project on hold.
Now, almost a year later, I thought I would continue the project. I've got all the mechanical pieces back to work right now, but I have some questions concerning the filament.
Firstly, I have a nearly full roll of PLA still, but it has been left in a dusty attic for almost a year. I read here that it could still be used if baked for a couple of hours at 50 degrees Celsius. Does anyone have experience with this? Can this be done in my regular oven that I also use for food without risk?
Secondly, there is still some PLA stuck in the printhead. As this may have taken up moisture I fear it might expand and damage the printhead. Is this possible? How could I remove it?