This article is about the item used within the Artisans Workshop. For the item used in making tradeable cannonballs, see Ammo mould.
The cannonball mould is used to repair dwarf multicannons within the Artisans Workshop. It is required to make a steel ingot II into test cannonballs, using a furnace. Four cannonballs are made from each ingot.
The mould can be found at the cannon barrel desk in the repair room. It cannot be taken outside of the repair area.
