Mark II Reactor Drone
The Mk2 Reactor drone is a heavily-shielded utility droid designed to perform menial labour duties and provide power. The 6.4 foot tall droid has a tubular design, a tracked uni-pod for locomotion, with tool, diagnostic and manipulator pods mounted around the tube body. Two manipulators are contained within a pod to keep them safe when not in use. The interior is taken up mostly by a fusion reactor that powers the droid and can provide power for up to two pieces of heavy equipment or weapons, five standard outlets and five light power links, for light tools or recharging power packs. The fusion generator will keep the droid and devices running for 5 years before requiring refueling and major repairs/replacement of systems.
The droid can not speak, except for beeps, chirps and similar noises, using a comlink, display which can be hidden behind a panel, or complink. The tread uni-pod and heavy armour made these droids slow and cumbersome, with many being left in a central location within repair shops or similar areas so they do not have to be moved often.
Mark 2 Power Droid (PL6)
CR: 1/4
Size: Med
Hit Points: 15 (1d10+10)
Init: +0
Speed: 20 ft
Defense: 18 (+8 armour)
Hardness:
BAB/Grp: +0
Attack: +2 melee pincer 1d3
FS/Reach: 5 ft
Special Attacks:
Special Qualities: Power Generator, Heavy Shielding
Saves: Fort + 0, Reflex + 0, Will +0
Abilities: Str 15, Dex 8, Con , Int 10, Wis 10, Cha 1
Skills: Computer Use +2, Repair +4
Feats:
Frame: Armature
Locomotion: Treads
Manipulators: Pincer (2)
Armour: Duralloy
Superstructure:
Sensors: Class III
Skill Software: Repair +4 chip, Computer Use +4 chip
Feat Software:
Accessories: Complink, Fusion Engine, power links, tool mount x2, mechanical toolkit, electrical toolkit, retractable arms with pinchers.
PDC: 21
Power Generator
The droid is a walking power generator, proving power as a small scale fusion reaction, able to power up to two pieces of heavy equipment at once, with hook ups for five other devices such as light to medium weapons, standard power tools, and five light power outlets for smaller hand tools or devices, including power pack rechargers.
Heavy Shielding
The Mark 2 has heavy radiation shielding and armour to protect both the power reactor contained within its frame, and those around it from any possible radiation from a possible leak before safety systems take over. This renders the droid immune to radiation damage, except for any heat damage caused by radiation based weapons, but even that is halved, and immune to EMP based weaponry or attacks.
Complink
A complink allows the robot to link directly with a computer system, such as those on a starship or building, allowing the robot to directly access systems, diagnostics and conduct electronic repairs. Depending on the size of the system the robot is connected to, can shut power off to various devices or areas, override control, and implant viruses or remove them. Reduces time required for the robot to perform any actions with the computer system by half.
*The tread uni-pod is of poor design and had a habit of malfunctioning. For every 50 ft travelled on any terrain that is not smooth, there is a 25% chance the track malfunctions and requires repairs (Repair check DC 15 and 5 minutes of work). If the droid is damaged in combat, there is a 25% chance that any strike disables the tread uni-pod requiring repairs, even if the damage was not to the system itself.

(image from starwars.wikia.com)
R1-Series Astromech Droid
The R1-Series was created by Industrial Automation, the creators of the Mark 2 Power droid, as their first commercially available droid. To save time on development, they used the same frame as the Mark 2 Power droid. The R1, although looking crude and simple, was actually packed with powerful systems including the first computer brain fitted in a 'roughly' man sized droid that could calculate the complex navigational coordinates necessary for a single hyperspace jump. The space used in the Mark 2 is dedicated to the navigational computer system, small internal cargo space, and added tool arm.
While too big to fit on most starfighters, except large ones, these droids are popular on freighters and shuttles as a back-up navigational computer and in-flight mechanic, or co-pilot, although their skills at piloting are not great, but useful for when the pilot needs to focus, such as in combat situations.
R1-Series Astromech Droid (PL6)
CR: 1/4
Size: Med
Hit Points: 15 (1d10+10)
Init: +0
Speed: 20 ft
Defense: 18 (+8 armour)
Hardness:
BAB/Grp: +0
Attack: +2 melee pincer 1d3, +2 melee fusion torch 1d10 fire, +2 melee circular saw 1d6 slashing
FS/Reach: 5 ft
Special Attacks:
Special Qualities: Heavy Shielding, Navigational Calculations
Saves: Fort + 0, Reflex + 0, Will +0
Abilities: Str 15, Dex 8, Con , Int 10, Wis 10, Cha 1
Skills: Computer Use +2, Repair +4, Knowledge: Tecknology +4, Navigate +4, Pilot +2
Feats: Starship Operations (usually ultralight, but owner's choice)
Frame: Armature
Locomotion: Treads
Manipulators: Pincer (2)
Armour: Duralloy
Superstructure:
Sensors: Class III
Skill Software: Repair +4 chip, Computer Use +4 chip, Knowledge: Tecknology +4 chip, Navigate +4 chip, Pilot +2 chip
Feat Software:
Accessories: Complink, Fusion Engine, power links, tool mount x2, mechanical toolkit, electrical toolkit, retractable arms with pinchers, fusion torch, circular saw, fire extinguisher, internal storage compartment x2 (20 lbs ea)
PDC: 22
Heavy Shielding
The R1 has heavy radiation shielding and armour as it has the same frame as the Mark 2 Power droid. This renders the droid immune to radiation damage, except for any heat damage caused by radiation based weapons, but even that is halved, and immune to EMP based weaponry or attacks.
Navigational Calculations
The R1 is capable of calculating coordinate and flight path in hyperspace and upload it to a hyperdrive equipped starship. Takes a full round action to calculate a route to well charted systems. Calculating a route along an established hyperspace lane (such as the Corellian Run) takes a standard action. Known but not well charted areas adds 1d4 rounds to the calculations, while charting a route to a system that the coordinates are known but no known hyperspace route takes 3+1d4 rounds. The R1 can store 3 sets of hyperspace coordinate, changing a set of coordinates takes as long as it takes the R1 to calculate, or 2 rounds for someone to upload a new set.
Complink
A complink allows the robot to link directly with a computer system, such as those on a starship or building, allowing the robot to directly access systems, diagnostics and conduct electronic repairs. Depending on the size of the system the robot is connected to, can shut power off to various devices or areas, override control, and implant viruses or remove them. Reduces time required for the robot to perform any actions with the computer system by half.
*The tread uni-pod is of poor design and had a habit of malfunctioning. For every 50 ft travelled on any terrain that is not smooth, there is a 25% chance the track malfunctions and requires repairs (Repair check DC 15 and 5 minutes of work). If the droid is damaged in combat, there is a 25% chance that any strike disables the tread uni-pod requiring repairs, even if the damage was not to the system itself.