Hey! This is the first thing I printed on my new 3-in-1 I got for Christmas. (First time I learned about warping too :-)
The reel seemed to spool erratically with the plastic on plastic contact (tugging and releasing) so I put a felt furniture pad on the arm and it rolls as smooth as silk now. I cut a strip to be about 1/4 inch wider than the arm and fit the entire length. Perfect now!
Sorry if this has already been suggested.https://www.google.com/shopping/product/9011350149930087680?lsf=seller:1135568,store:5335595617185262782&prds=oid:14245607783437619675&q=felt+furniture+pads&hl=en&ei=hUFpWOGrNor1mAHNyJXICQ&lsft=gclid:Cj0KEQiA7qLDBRD9xJ7PscDCu5IBEiQAqo3BxBXkMGiABYOSNaDk2RTn5UEPGxJchkcM-eyk5qA5mq8aAk9C8P8HAQ