Source
empti3•

The swapping animation of this design is fantastic !

6
_aexOP•

Thanks !

3
_aexOP•

The advantage of this design is that you don't need to cover a wall with sticky pistons. So instead of 1 piston and 7 sticky pistons per slice, it's just 1 piston and 2 sticky pistons.

4
Admiral_Bananas•

Any tutorial or description on how to build this?

4
_aexOP•

It's fairly complicated/convoluted thing, but I can put out a tutorial when I have some time tomorrow if you want. The basic idea is simple though: you have alternating back-and-forth columns of slime blocks at the back, which retract and push forward simultaneously or 1 tick apart so that they don't stick to get rid of the white powder. To raise the blue powder back up to replace the white sand there's a switching mechanism like in Etho's latest LP video. However, you have to fiddle around with the timing to let the sand fall completely between each step, otherwise you end up launching some of the blocks out (because of the slime blocks).

8
Ajreil•

Hmm... I think I want my wall blue today.

Flicks lever

Much better.

2
Jugems•

does this have to be a flat design? or can you change to a pattern as well?

2
_aexOP•

It does have to be a flat design, but it doesn't have to be uniformly coloured as in the gif. But with 16 concrete powder colours, you have a pretty diverse range.

I can imagine some ways of making the design extend out of a single flat plane, but they're pretty complicated.

1
iamonlyoneman•

Burn the witch!

1
ZentoZekto•

rip computer

1