With the new Mob Stacking plugin being put onto Skyblock and Survival, there have been many people complaining that their grinders have broken and it's caused all sorts of outrage. This is mainly due to falling not killing the entire stack, so, I've made a quick video just showing three simple killing machines meant for Spiders, Pigmen, Zombies, Skeletons, and if you just change the layout a little, Blazes too. The Mob Stacking plugin really helps out the server with lag, considering people can now have thousands of mobs sat in their grinder causing little to no lag. Click here to watch the video on youtube. Yes, I know the video isn't the prettiest looking and it has horrible transitions, but it's better than nothing.
To make it suitable for vertical killers, usually needed for blazes, just take the redstone from the Pigmen killer, and change the end so the torch hits both the pistons like this.
Thank you for the help Tom. Glad you're here to show us noobs how to make the grinders work for mob stacking XD
That sounds like a Exp grinder, this is for killing mobs automatically, as the standard falling-to-death method no longer works.
So what you're saying is... I can make a 10x10x10 grid of spawners and store over 9000 mobs into one?!
All of them, yep. I've had one person complain saying they don't think the lava methods gave 100%, but the crushers will for certain.
Unfortunately that'd be incredibly bad, spawners can only spawn 4 blocks in each direction, as well as a block below, above and same height (the feet of the mob, that is). Meaning the only actually active spawners would be the ones on the bottom and top layer, as well as any spawner 4 blocks or less, into the cube.
Regarding previous comments I have a ring of spawners, a 3x3 hollow ring with 3 spawners dropping down on each block of the ring. You can see at /warp kyleblaze. Is it efficient?