Armor Games

Does anybody know how to pass level 19

I have been stuck on level 18. :(  I have tried several designs to pass the level but to no avail.

Try:
http://www.youtube.com/watch?v=ZqM1Zp9oQBk
Or:
http://www.youtube.com/watch?v=9VxV4fB9am8
Or:
http://www.youtube.com/watch?v=IWIzQQf-m5c

Hope of those videos gives you a hand.

Level 18 is really simple:

.

Level 19 can be simple too:

sweet thanks for the info Nozo!  =)