Having built Mumbo's Blaze farm before the 1.8 update (which changed their AI), it needed fixing.

Rather than getting them in a 1x1 tube using pistons (which sometimes hurt/killed them), I decided to use the new feature of activator rails.

It also includes an activator rail shut off to prevent Blaze aggro, hopper clock crusher, and a handy Enchanting station.

Feedback is greatly appreciated.

(I've said it's 90% complete, as I'm sure people can find bugs and problems with it, even though I've tested it loads)