The Clamp - Easy Drawbridges and Portcullis

Everyone who plays Minecraft at some point builds a castle, base, or fort.  But what's a castle without a drawbridge and portcullis?

This mod finally allows a simple way to retract multiple blocks.

Simply clamp the blocks together.  The blocks will all move when given a redstone signal.

To clamp blocks together place two clamps facing each other with up to 6 movable blocks in between.

Then give one of the clamps a redstone signal.  As long as there is enough empty space for the blocks to move into, the entire group will slide into place.

Control the speed of movement by the strength of the redstone signal.  The weaker the initial input signal the slower the blocks will move.

Craft a clamp with polished blackstone, iron bars, redstone, and iron ingots (see gallery tab).