cutting the inside
I am a very new turner and I've turned a goblet and a small pot out of an apple tree recently cut down. The wood is quite green and I find it easy to cut the outside and find it awkward to scrape or cut the inside. Is there a particular way? should I shape the outside first or the inside? If i do the outside shape and then the inside while the wood is mounted on a small screw chuck which is quite secure, I'm getting a lot of vibration or grabbing and the same the other way. My tools are quite sharp. I've used a scraper on one and a bowl gouge on the other to find the difference but both have the same problem. Can any one give me advice on this matter?