Hello and welcome from Australia.
When you get the length you want for your sleeve, you cast off x number of stitches (whatever the pattern says) at the beginning of the next two rows, then k2 tog each end of every alternate row. Youtube will have videos of this I am sure, just google raglan sleeves.
If you do not mind paying for help Craftsy.com has some classes that show you how to do raglan. I purchased the one called lace cardigan and it is very good. I have not yet begun to knit the sweater as I want to watch the class through first.
That's exactly it. I usually cast/bind off two or three stitches at each end to fit under the armpit and then cast off 1 stitch at each end of the the right side rows until I have the right number of stitches at thh neck.
A forum community dedicated to all levels of knitters and enthusiasts. Come join the discussion about collections, displays, how-tos, patterns, tutorials, styles, scales, reviews, swaps, accessories, classifieds, and more!