- v50 information can now be added to pages in the main namespace. v0.47 information can still be found in the DF2014 namespace. See here for more details on the new versioning policy.
- Use this page to report any issues related to the migration.
40d:Magma-safe
Magma-safe materials consist of pig iron, iron, steel, nickel, nickel silver, platinum, bauxite, (raw) adamantine, and fire imp bones and leather. It can be difficult to control magma flow with floodgates since mechanisms must be made out of rocks, almost none of which are magma-safe (bauxite and raw adamantine being the sole exceptions).
In order to construct mechanisms from bauxite, simply ensure that they are the closest available stone to your mechanic, ideally by placing a bauxite-only stockpile around your mechanic's workshop. To use raw adamantine, however, you must allow its use for non-economic purposes in the stock screen (z and select 'stone') - while doing this, you might want to suspend any other stone-using jobs.
The mechanism on the trigger need not be magma-safe, only the one on the floodgate. If you do not have any bauxite or adamantine available, you can also work around floodgate based flow control by opting for screw pumps to pump the magma over wall-barriers.
Constructions that resist magma are:
- Constructions (Wall, Floor, Ramp, and Stairs) of any material can never melt or burn - there is nothing wrong with a wooden magma reservoir. Natural ice walls/floors/ramps/stairs may melt however.
- Fortifications will allow the passage of magma, but not the assorted magma creatures. Fire snakes are vermin, so they can spawn anywhere near their native biome - the magma pipe/pool. They are not affected by fortifications, grates, or even solid walls. Also, there is a bug with fluids which may sometimes let magma (and water) push living things through barriers such as fortifications, bars and grates. Pumps are a positive defense, but can change the dynamics of fluid pressure.
- If not submerged (that is, not opened to let magma flow over/past/around them), doors, floodgates and raising bridges of stone or metal are magma safe. So long as they are just in contact with magma, only acting as a passive "wall", they are fine. If opened (via a mechanism, bauxite or other) they will deconstruct and possibly melt. Wood barriers in this category are not magma safe.
Glass
Glass behaves oddly in regards to magma. Glass is, in itself, not magma safe; glass instruments will melt in magma. However, glass furniture will not. So glass statues, screw pumps, and floodgates are all fine when submerged in magma. Forum link with experiments: http://www.bay12games.com/forum/index.php?topic=27423.msg333562#msg333562
Glass barriers still require magma-proof mechanisms to operate without deconstructing.
Game calculations
In the game, magma's temperature is exactly 2,032°F, or about 1,111°C.
Metal:
- Pig iron — 2138°F (1170°C)
- Nickel and nickel silver — 2651°F (1455°C)
- Steel — 2750°F (1510°C)
- Iron — 2800°F (1538°C)
- Platinum — 3214°F (1768°C)
- Adamantine — 15032°F (8333°C)
Stone:
- Bauxite — 3632°F (2000°C)
- Raw adamantine — 15032°F (8333°C)
Leather:
Bones: