Stuck...

So I continued to work on the stuck seat post. Used a hacksaw blade to saw through the insanely thick material in the post.
Tried to form the post it as good as possible to get grep in the useless vice.
The result, more pieces of the brittle material.

Used the loose hacksaw blade to saw grooves in the post and managed to knock out some pieces inside the seat tube.
Who said free stuff is cheap? I have wasted at least 4 litres of sweat so far and the damn seat post is still stuck! Will have another go this evening...