BUD switches (short for Block Update Detector) can be triggered without levers, buttons, tripwires, or any other traditional switches. Instead, they're triggered by changes in block status. That is, placing a block, destroying a block, hoeing grass, clearing snow, etc.
The hardest part of starting a minecart railroad in Minecraft is getting it started. Anyone can lay some track in a circle, but what's the best way to stop and start your cart?
As anyone who has tried it knows, stacking pistons on top of each other in order to combine their effects is really, really complicated. Stacking two on top of each other is only slightly hard, but the difficulty rises exponentially with each added piston. Stacking three is pretty tough, and stacking four is downright ridiculous.
Not to be confused with the band, ABBA switches are so named because they reverse outputs such that they fire in A-B-B-A order. So, your redstone devices will essentially fire in one order (A and then B) when activated, and then deactivate in the reverse order (B and then A).
In most cases, gravity may as well not exist in Minecraft. The blocks all stick together in unreal ways, and you can even make things that just float in the sky.
Minecarts are a lot more complicated than they may seem at first. Between regular rails, powered rails, and detector rails, they all have a lot of quirks that can make them hard to use.
The Workshop this weekend went of without a hitch! Except that it didn't happen until later at night, The workshop went exceptionally well. Lots of people came out to build in this weeks workshop and here's some nice pictures to help tell the tale!