Bay 12 Games Forum

Magma under a floor can heat the floor enough that if a dwarf stands there long enough, their shoes can catch on fire, feet receive burn injuries, etc.  It doesn't always happen (may be based on the specific heat of the floor?), but I've seen it.

I'm not too sure that this is true...  I routinely have large areas over magma, with meeting areas even, and have never had a dwarf get burned from simply standing around on a floor over magma.  Maybe your dwarf stepped in a puddle of magma or something?

This application's performance is not what it can be.

Yeah, and what is emblazoned on the startup screen that you are forced to read every time you run the game???  Thats, right.  We are playing an alpha release of the game, so I am fairly certain there is much code to be optimized yet, so keep your pants on.

I don't trust the forbidden square method since I've heard stories of creatures moving or shooting around diagonally without a problem. Hence I always dig a tunnel then block it - using either water to turn part of the tunnel to obsidian, or making a cave in. This has the advantage of making a safe magma pit to dump trash in, also.

There is nothing not to trust since absolutely nothing in game is able to shoot diagonally across z levels.  Once the workshop is built and the impassible tile is over the hole you are as safe as if the hole had never been channeled.  As for fortifications, well I have had imps get through fortifications on more than one occasion so, IMO, they are much less trustworthy.

Well you don't have to 'pave' anything, just dig out a chamber above some magma (find a spot toward the bottom of your magma pipe where there is a wider level of magma below a small one), then figure out about where you want your forge and smelter, then channel out the one tile for magma access and build your forge and smelters etc.  As long as you build the magma shops with the impassible tile over the channeled hole then you will be 100% safe.  The only time you are at risk is in the period between when you channel the magma access and the workshop is finished, and if you make sure your parts are all nearby the time is greatly reduced.

I second molten rocks advice.  I do not consider it cheating because all it does is makes a bunch of stone melt at realistic temperatures, which has the added benefit of making quite a few of them magma safe.   Also you do not need to regen after applying the mod, however you may find that the mineral distribution on most maps is different when generated with the mod applied.

I am finding claims of 2 magma pipes on a local map a bit had to believe.  I spend more time genning worlds and looking for good sites than I do playing, and I have yet to see more than one of any feature on the local map, one each of magma pipe, magma pool, ug-river, ug-pool, chasm, pit, and HFS.  Occasionally a feature may be missing, but I have yet to see 2 of any singular feature.  Until I see some concrete evidence of this I am going to continue my current assumption that only 1 of any feature is permitted per local tile.  And by concrete I mean some screenshots or at the very least some worldgen params.  Personally I think people are getting pipes and pools mixed up or are simply remembering things wrong.

it's not working!!!!!!!!!!!!!!

Then you are doing it wrong.  Maybe try actually READING the wiki page instead of just looking at the pictures?