Armor. To forge armor, you need a forge and enough materials to craft the
desired item. For simplicity, assume a single ingot of metal is enough to forge
20 pounds of armor, and it takes a number of hours equal to double the weight of
the armor to forge it. The DR to craft armor is double the Armor Bonus the armor
gives you; ergo, the DR to forge Normal Plate armor (Beast Hide and Steel)
would be 30; to forge Masterful Plate armor (Dragon Scale and Monster
Hide) would be 42. Failing the check will not expend your resources, and you can
try again as many times as you need, though each try takes a day's rest.
Weapons. To forge weapons, you need a forge and enough steel, adamantite, or antitherium to
craft the desired item (mithril is too heavy to use for weaponry). For simplicity,
assume a single ingot of metal is enough to forge 20 pounds of weaponry, and it takes a
number of hours equal to double the weight of the weapon to forge it. The DR to
create Normal weapons is equal to double the maximum value of its base
damage die, e.g. the DR to create a Normal dagger is 8, since its base
damage die is a d4. For higher-quality weapons, the DR increases by the maximum value
of the base damage die for each level of quality above Normal, e.g. the DR to craft a
Fine dagger is 12 (8+4), the DR for an Exquisite dagger is 16, and so
on. Repeaters and revolvers are the exception; for them, the Normal DR is triple the
maximum value of their base damage die. Normal and Fine weapons require steel or antitherium, while
Exquisite and Masterful weapons require adamantite or antitherium. Failing the check will
not expend your resources, and you can try again as many times as you need.
Mechanical Weapons. To create a mechanical weapon, you can forge the individual parts using
the normal DRs, but must use tinkering tools to amalgamate them into one object;
refer to Mechanical Weapons under Tinkering Tools below.