minecraft-java-editionminecraft-redstone
I've been looking all over youtube, I know how to make a 2 by 1 vertical door at this point, but for this build I'd like to have 2 iron bars be the door but when it opens for the bottom block of the door be replaced to a stone block.
I feel like ive seen this technique of replacing the blocks using pistons before but i couldn't find anything online(maybe i just don't know what to look up honestly)
I'm gonna attach some images that will better explain what i'm trying to do.
If you watch at about 2:50, you can see most of the left half of the circuit. The part for the stairs looks like it isn't shown very well but that is less important timing wise. Watch carefully over and over and see if you can replicate it this way. It looks like the repeaters for the middle activate and deactivate immediately. So the order (from a circuit standpoint) for both directions is M, L+R. This works for closing because the middle repeaters don't have anything to activate until the blocks are pushed into the middle. When opening, they will retract the middle immediately.
Breaking it down:
Opening
Closing
This is a bug in the 1.9 pre-release (not sure if just pre-release 3, or all of them).
As you can see here:
It's working as you intended it to in 1.8.1
Best Answer
You can make it using the following steps:
Note that it is literally impossible to make the bottom of the door (i.e. the block in front of the bottom bars) be another block than a slime block or a sticky piston. The steps are, I hope, clearly shown. I didn't connect the blocks to a redstone circuit as that is supposed to be the easy part. You can do the same for the upper bars if you want them to 'disappear' from sight too.