I have used this Blaze Grinder for years now that i have a sever I might as well share it . You can add a hopper system I use one but I wanted to make my first schematic simple. Do not place near high traffic areas as the only off switch is to kill the mobs and flee to a distance of 16 blocks away.Volume warning !!!! Turn down hostile mobs volume when grinding.
MajorPayn
owner of GANDHJACRAFT
CREATIONS
MINECRAFT-SCHEMATICS.COM