Saw Bones
ArboristSite Operative
Simple.... buy this:
http://www.baileysonline.com/itemdetail.asp?item=15200&catID=272
Use it before your chains get real Dull. WDO
+1
Keep at it. Won't take you long to get it figured out. I use a similar rig made by oregon. They trick is to use a good file. Don't be too cheap. After you have been using a file for a little while you notice it takes more work to sharpen your cutters. With a new one 3 or 4 strokes is all it takes.
Practice Practice Practice.