Last year I had my printer humming and printed a few cool things. got busy over the summer and let it sit. Nothing changed, nothing was touched. now all of the sudden it does not feed the filament. all of it turns but it eats the filament up. I have tried to season the hot end, I have tried pushing other things through it.... it feeds up through about the first layer and then just quits feeding and jams. it is running exactly the same as it did before, actually loaded a file I printed last year and it still did not print that one either. any ideas? I have tried all day to work with Colin and I am feeling stupider and stupider. cannot get anything to work.