bring the desired leg to a knee chamber (90 degrese from your body then practice extending your leg out so it has the ball of the foot hittin the target after you are happy with this face a wall and do the above but aim the ball of your foot to the corner of the wall. it is important that you place all your weight on the ball of your foot to start off with
i hope this helps

this is a link that you may find useful
http://www.youtube.com/watch?v=GWH5YLvrAgU

£tbest£ wrote:
this is a link that you may find useful
http://www.youtube.com/watch?v=GWH5YLvrAgU

Any idea why the guy in the clip is kicking off at a 45 degree angle?

Wow, I feel like a total idiot now! When I made my comments earlier I was talking about a spinning kick. Here is the problem with terminology that is not universal. I know that one translation of Dolryo Chagi is "Turning Kick", but I've never actually heard anyone call it that. I've always heard it referenced as a "Roundhouse Kick" regardless of what style the practitioner came from. So, my apologies if I sounded like an idiot earlier. None of my previous comments were about this kick.