BOB FET SET UP

HERE ARE THE PICS
THE TRIGGER SWITCH WIRES UP LIKE ANY MOSFET
HOT WIRE FROM BATTERY GOES TO THE MOTOR AND TAGS ON TO ONE LEG OF THE TRIGGER

WIRE FROM THE OTHER LEG OF THE TRIGGER GOES TO THE POWER SIDE OF THE RELAY

GROUND WIRE FROM BATTERY HAS 2 LEADS FROM IT


ONE HOOKS TO THE INPUT SIDE OF THE RELAY


ONE HOOKS TO THE NEG(GROUND SIDE OF RELAY )


GROUND WIRE FROM OUTPUT SIDE OF RELAY GOES TO MOTOR


IT SWITCHES THE GROUND SIDE TO FEED POWER TO THE MOTOR

could you draw that a little more clearly please?

Very cool, just making sure this setups saves your trigger contacts?

have been using them for over a year

the battery voltage does not hurt the contacts,they do not really arc
its the amps pulled by the motor that overheat and burn the contacts
thats how the mosfets and relays work,very low amps to activate the switching side of the fet or relay.
all the amps are pulled thru the gate side of the fet or relay.
mosfets may give a little higher rate of fire,but only at the first pull of the trigger.
the fet will activte faster.but if you hold the trigger down for a few seconds its only a bb or so
the pics of the gear box are from my ics pistol(the one i always carry with my sniper)it has tens of thousands of
rounds thru it at 33 rps and 380+ fps.i had it apart to install a set of high speed gears.now its 38rps(i was hoping for 40+ but with the high fps for such a short barrel i am happy)still the same trigger contacts.
trust me this works.the relays are a little big,air dog has a folding forgrip that is perfect for hiding the relays.
i hope this helps.
if you want to see one hit me up at a game.
later
POOP

ahhh I see. So I got a turbo motor and 11.1v lipo, got me about 40ish rps today before I forgot about this wonder called pre-engagement... New piston on the way.

Anywho, so I'm running no mosfet at this time but If I got a bobfet, I understand it would save my contacts? Still not understanding. My battery is

11.1v 2200mah 35-70c if that helps. 77a cont. and 140 burst.

Thanks poopdaddy!

if this helps
take a 11.1 lipo
hook it up to a car headlight,it will run the headlight but the wires will get hot.
lots of amps for the big light
recharge it
hook it up to a car turn signal light,let it run.it will run the little light for longer and with less heat in the battery wires.
the thing you run with the battery will pull the amps needed to operate.
to operate a aeg motor it pulls more amp than it takes to operate a relay.
motor and higher amps = heat in the contacts
relay and lower amps = less heat in the contacts
its very simple
if you think i am wrong,wire up a mosfet.
skin back the wire that runs from the trigger contacts to the mosfet.
hook up the battery to gun
get a volt meter
set it to volts
put the neg.(black)lead on the ground side of the battery
put the pos. (red )lead on the skinned wire
pull the trigger and get a reading
switch it to amps and do the same thing
now skin the pos.(red) wire that comes from the battery and goes to the motor
do the same test
voltage will be about the same but the amps will be much higher.

what do you think
the power wire from the battery that you solder toghether loses volts just because you put a small wire on the other leg of the contacts.
on the fet you remove the wire on the top side of the contacts and solder it to the lower contact.
then you put a wire on the top leg of the switch to go to the fet or the relay.
you do not put a resistor on between lower leg of the contacts and the two wires you solderd together.
you have done nothing to lower the voltage
you just take the amp draw from the contacts and put it to the fet/relay
i am not selling these
just telling you how to lower your cost
they are much more reliable than a mosfet,just bigger
i hope that helps
POOP

So the relay reduces Amps to the contacts which causes less heat/wear..

edit nvm reread it more clearly thanks for the explanation.

no probs
try it it works pretty good