On-Board Air Compressor / Welder for vehicles

Step 4 The tools, equipment and parts

Any one will tell you a good set of tools will take you far.
Now for the tools we will be using, some are required and some are use for ease of use.

The required tools:

A set of wrenches metric and standard
A ratchet wrench with metric and standard sockets
A hammer
Misc screw drivers,
Wire strippers and crimper
Teflon tape
Hacksaw
Drill with a decent bit set
Bolts, nuts, and misc

The recommend but not needed tools:

MIG Welder
Angle Grinder
Plasma cutter
Drill press

Materials:

For the On-Board Air:

A automotive AC compressor (Sanden, York 210, or RV2)
A oil air separator
Two pieces of 1/4" plate steel 10"x10"
Misc scraps of angle iron and 3/16" steel plate larger than 3"x6"
A 150psi pop-off safety valve(or other PSI depending on your pressure switch)
A 145PSI pressure switch with contact good for at least 10amps
A pressure gauge good for 0-200psi
Air hose 50 feet (for my jeep I used about 30 feet the excess gives you a short hose to keep in your vehicle)
Hose barbs to fit your hose
Misc pipe elbows, Tees, nipples, and bushings
A air tank ranging from 2.5 to 8 Gallons (I use a 6-7 Gallon tank)
And quick disconnect to fit your air tools

For the On-Board Welder:

A automotive alternator (CS144 or Ford 1G alternator)
Miller panel welder connectors
A Stinger(rod holder) rated for 300amps
A ground clamp
Two 20' foot sections of 4 gauge welding cable (you could use thicker and longer cables I chose 20' of 4 gauge for storage size reasons)
A SPST toggle switch ratted for 30amps
Non-avalanche replacement diode pack if your alternator comes with avalanche diodes

The cost:

Air compressor:

RV2..............$35 (autoyard)
Oil sep..........$19 (lowes)
Hose............$18 (harbor freight 50' had 28' extra)
disconnects....$5 each ($15) (ebay)
pres switch.....$14 (ebay)
pop off.........$7 (ebay)
belt.............$12 (napa)
Combo pulley..$60 (quadratech)
Gauge..........$5 (ebay)
switch..........$5 (ebay)
Manifold.......$10 (if you bought one from ebay I built mine out of pipe fittings)

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Total...........$201

Welder:

CS-144.........$35 (autoyard)
1G diodes.....$17 (alternator shop)
cable...........$65 (40feet @ $1.62)(welding shop)
connects.......$15 each (jacks) (welding shop)
connects.......$12 each (plugs) (welding shop)
project box....$4 (radio shack)
Stinger.........$7 (welding shop)
grd clamp......$11 (welding shop)
switch..........$6 (radio shack)
belt.............$8 (napa)

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Total...........$207