Darren, it is quite big I suppose, 50mm bore, 50mm stroke, 105mm diameter flywheels and about 375mm overall length.
Thats about as slow as it will run at least until the tight spots get eased a bit but of course it goes really fast too if the air is available to drive it.
It does have considerable power and I am wondering what shop device I could put it to work driving, maybe a paint can shaker or perhap a reversed Stirling to cool my beer supplies.
