what is Switch Assembly??

[iggim109]

hi y'all today i want to ask question about Switch Assembly
what is it anyway??? is it juat the wires or something elas???
thanks

[aznpos531]

I believe it's part of your fire selector. Should be a bunch of wires that connect the selector plate to the battery and motor. (Someone correct me if I'm wrong)

[theguy]

Originally Posted by aznpos531

I believe it's part of your fire selector. Should be a bunch of wires that connect the selector plate to the battery and motor. (Someone correct me if I'm wrong)

Kinda.

The switch assembly is the part of the wiring harness that contains the trigger contacts. Two pieces of metal that are pushed together when you pull the trigger, completing the circuit of the gun. When these are pushed together, it creates a path for power to flow from the battery to the motor.

Sorry if its a shitty explanation, Its late

EDIT
Okay picture, When you pull your trigger. It moves the part on the left, into the part on the right. When the metal on these two parts touches, the circuit is complete, and your AEG will fire.

[m102404]

Imagine the following. You've got a battery with a +ve (red) and -ve (black) connections on it. You run a black wired from the battery (-ve contact) straight to the -ve terminal of the electric motor.

If you ran a wire straight from the +ve (red) terminal of the battery and touched the wire to the +ve terminal of the motor...the motor would spin, because you've completed the circuit.

All the switch assembly does is put an On/Off switch in the middle of that red wire. Basically there are two metal contacts...and the trigger pushes a metal block inbetween them to complete the circuit. Imagine a mechanical throw switch (like the old movies where the warden throws a big switch to fry a guy on an electric chair....same sort of thing, a mechanical contact switch).

The plastic housing just holds the 2 metal contacts, metal block, return spring and connecting wires in place.

When the circuit is completed...the motor spins...turns the gears...pulls back the piston...and the shot is fired.

**edit**
Some switch assemblies have metal contacts on their side (usually the left side)...and the circuit is completed by a metal tab on the selector plate. This is a bit redundant since completing the circuit there does not cause the motor to spin...and the safety is a mechanical block that prevents the trigger from moving. But I suppose it is a redundant safety...so whatever that's worth.
*****

How the mechbox is put into semi-auto vs. full-auto is an entirely different thing....but essentially a little arm flicks the metal block out of contact after each shot.

Hope that helps,

Tys