Wood Bot (1-2) achievement hints?

[Broso]

Hey guys, I'm trying to figure this one out but I'm at a complete loss in which direction to think to find the solution for this.

I don't want the solution spoiled but a little nudge in the right direction would be highly appreciated. Maybe it's simple and I'm just too blind to see it.


EDIT:

Nevermind, figured it out myself.


Should anyone else have problems with this, here is a hint:

Think about how you can bypass "block sinks" (whatever those purple ring things are called).

[MaRsun]

You can grab the blocks through annihilation field