After i made a pair of tongs I got a little tired of banging the hammer over and over and over...
So i decided to build a pneumatic hammer :)
With some help from my friends i got hold of a nice pile of some beams and a pneumatic cylinder for free :)
Later i found out that the cylinder was to big, and required a lot more airflow than i could achieve.
So i had to buy one, and I got one for 50 bucks, they are quite expensive I think.
Its 40mm thick and 200mm stroke. and i had to use 10mm hoses to get the required speed.
The moving bar is a 400mm*40mm square steel bar, that weights about 13 kg.
Here are some pics :