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[darklord92]

edit: updated the post with an ingame picture of the mid level

I use a "ring" method, it takes a bit of wood, and rocks( if you want mechanisms in supports but you'll need to wait for a dwarf caravan for em )   as long as you have a deep enough layer of spoil ( 2 layers) you'll eb able to do this


first make multiple ring formations, all with there own wood supports holding them up by 1 tile, i use arches from the ring to the ground.

in game:

Spoiler (click to show/hide)

Spoiler (click to show/hide)

. = open space
+ = floor
O = pillar

Top Z level
.............................
.....+++.................
.............................
.....+++++.............
.............................
.....+++++++........
.............................

Middle Z level:
+++++++++++++++++++++++++++++++++++++
++++++++.............................................+++++++++
++++++++.+++++++++++++++++++.+++++++++
+++++++O.O......................................+.+++++++++
++++++++.+.++++++++++++++++.+.+++++++++
+++++++O.+.O...............................+.+.+++++++++
++++++++.+.+.+++++++++++++.+.+.+++++++++
+++++++O.+.+.O.........................+.+.+.+++++++++
++++++++.+.+.+++++++++++++.+.+.+++++++++
++++++++.+.+...............................+.+.+++++++++
++++++++.+.++++++++++++++++.+.+++++++++
++++++++.+......................................+.+++++++++
++++++++.+++++++++++++++++++.+++++++++
++++++++.............................................+++++++++

bottom Z level is cleared out entirely and the rings are seperated with upward ramps and than the ramps are removed with d>z. the rings are now "free floating" supported by the arches . removing the pillar on the ground connected to each ring by the floors above causes the rings ot fall. first drop the largest. pump out the water. move onto the smaller. pump out water, dig out the z level bellow again and drop the ring. make the ring count as large as you need to penetrate the aquifer.

[GoldenShadow]

you could bring a bunch of stone with your embark wagon. They only cost 3 points per stone. bring 8 of them is enough for 2 supports , 2 levers, and 4 mechanisms to hook everything up

[SarZ]

This is THE best guide to penetrate ANY aquifer. If you follow this guide in detail, you will penetrate all aquifers without any problems.

http://www.bay12forums.com/smf/index.php?topic=79224.15

[HiEv]

I use a "ring" method, it takes a bit of wood, and rocks( if you want mechanisms in supports but you'll need to wait for a dwarf caravan for em )   as long as you have a deep enough layer of spoil ( 2 layers) you'll eb able to do this

For a more in-depth explanation of this method see here.  It includes before, during, and after shots of the process with multi-level fortress maps.

[dizzyelk]

I don't really like the two slit method, too much building and deconstructing of pumps for me. I use this method: http://www.bay12forums.com/smf/index.php?topic=79224.msg2058307#msg2058307 powered by windmills. But, it needs mechanisms to really work well, so you need to have brought stone with you. Or trade for some at the first caravan, they usually bring some. If I had to rely on dwarf pumping labor, then I'd go with the two slit method.

[mrhanman]

I'm trying to do the two slit method (the one in the spoiler), and the water doesn't seem to be draining down the lower stairs fast enough to get the walls built.  I managed to dig and place two sections nearest the drainage stairs, but nothing else.  Did I miss something?

[Nil Eyeglazed]

I'm trying to do the two slit method (the one in the spoiler), and the water doesn't seem to be draining down the lower stairs fast enough to get the walls built.  I managed to dig and place two sections nearest the drainage stairs, but nothing else.  Did I miss something?

Sounds like it.  2-slit does not rely on draining down the stairs, it relies on pumping water into the other aquifer slit.

If you've placed two sections according to the instructions, the next section is the hard one-- it relies on diagonal access.  Even if you're doing everything right, expect more cancellations than you did with the previous walls.  (And make sure you always have orthogonal access to the section you're trying to build, rather than diagonal access.  The diagrams were designed for players experienced with DF, and probably could be redesigned to be more newbie friendly.)

[Triaxx2]

Definitely could be. I tried it and eventually had to rely on freezing to punch through.

[mrhanman]

Woohoo! I got through my first z level!  I have no idea how many there are, but I figured out what I was doing wrong.  Below the level I was trying to wall, I only built one up/down stair per slit.  After I got the other built, it was much easier.  I'm not sure why I thought one was enough, but I suspect it's because there was a picture missing from that step in the post.  Anyway, thanks for everyone's help.

Of course, now I have a new problem.  I can't get my miner to dig out the second tile on one of the slits in the next level.  He had no problem digging out the other two, but on this side, he won't dig.  How do I make him?