Okay, here's some tinkering:
A focuser is similar to a pump in basic principle, but rather than project the energy in question--be it steam, cold, electricity, light, water, fire, force--out in a direct line, it creates a constant, narrow stream of it with a limited reach. As you might imagine, this has several applications.
A focuser is basically a box with a focusing nozzle at one end. It's possible to make a tube so the nozzle can held in the hand and used like that.
A pilot light and a focuser makes a cutting torch that ignores 10 points of hardness when used on object, and it can be adjusted to make a long tongue of fire that does 1d4 fire damage on a touch attack and counts as a light melee weapon, and can be used to set objects on fire.
The same basic principle holds true with other energy types--the focuser can either make an extremely intense, extremely-short range form of the energy in question, or it can be set to make an easy-to-use melee weapon.
There are some conditions for amplifiers and focusers, though. An amp set into a focuser can either improve the damage by a step, or it can improve the reach by 5 feet, and without the presence of a Nozzle steampower, must be designated which feature it improves--damage or reach. A Nozzle, however, allows you to switch which feature amps improve with a move action.
Cutting torch/Flare blade: Pilot Light + Amp + Amp + Nozzle + Focuser: Creates a melee blade that hits on a touch attack. The Amps mean it can have a reach of 15 foot and do 1d4, or it can have a reach of 5 feet and do 1d8 (I think that's the right damage). Alternatively, if used as a cutting torch with both amps set to increase damage, it ignores 20 points of hardness.
Hydro/Steam Cutter: Same combination, except with that Water-lobbing steampower, or, alternatively, running direction from a source of steam. Creates an extremely high-pressure narrow stream of water or steam that has an incredibly frightening cutting power.
Shockbox/Bolt blade: Same combination, except with a spark generator as the energy source. When used to give a single "shock" effect, works sorta like a taser or shock prod: On a medium sized creature, they must succeed a Fort save or be knocked prone or stunned. As a melee weapon, has a +1 bonus to hit against people wearing metal armor, but does -2 damage due to the effect being diffused along the metal.
Burnlight: Focuser + Light generator: can be used to start fires as a standard-action on flammable material, deal 1d2 non-lethal damage on people, amps increase the damage but it remains non-lethal as it's just a sunburn unless the target a light-vulnerable creature, an undead, or on a person held down so the same spot may be focused upon for multiple rounds (then it's torture). Possibly, you could make a Lightsaber out of this and some means of converting the damage to lethal.
Cold blade: Cold elemental blade using the Focuser, amps, and nozzle. Can't think of a special effect.
Force Blade: Does Force damage, using a Focuser, a couple of amps, and a nozzle.
Last edited by Arek on Sat Feb 02, 2008 10:53 pm, edited 1 time in total.