Still learning how to use planes here.
I got a Mujingfang (Chinese made) ~7" smoothing plane. I flattened the sole and sharpened the blade when I got it, and it seemed to work pretty well on soft wood. Last night I tried it on a piece of oak though and couldn't get it to cut at all. The blade kept getting pushed back into the body instead. Anyone familiar enough to diagnose the problem? I'm guessing either the wedge is not set tight enough (I tried making it tighter) or the blade isn't sharp enough, or some other problem I didn't think of
Also when planing the pine wood I felt some chatter, would that be a chipbreaker adjustment problem?
Thanks!