VZ-61 Scorpion pistol grip + etu

thingiverse

Since the standard vz-61 does not work with a normal lipo battery or at least not without some soldering and also has not that much room for a good lipo and mosfet, sooo I designed this pistol grip + Mosfet. This should fit all skorpion variants becouse there basicly all build the same. BIG WARNING! This pistol grip does not work with the original vz-61 grip internals! Be sure that your solder the cicuit like I did or you might damage your battery or your motor. You will need some heat inserts. I´m using 2xM2,5 3xM3 heat inserts. You also need 2x M2x5x8~10 2x M3x8~10 and one M3x6. To connect the motor to the circuit you will also need Flat connector for PCB assembly with a width of 2,8 mm. For the mosfet I´m using a IRF3710 becouse it has a low resistance and allows allot of current to flow throw it (but you can use any mosfet that has similar characteristics). You can use any generic diode (example: 1N4004, 1N4007 etc.). I´m using a little micro switch with a 90 degree angle, but any microswitch works. I soldered the components to a breadboard and moved it to a point there the trigger bushes the micro switch (you can make long hohles in the breadboard for that). I also integrated a strain relief inside the grip so put your cables through it before your solder them on to the breadboard. If you dont want to solder so much you can just buy a generic small airsoft mosfet and huck it up to your switch, motor and battery like you would do on every other gun. ---------------------------update 8.5.2023------------------- use the irfz1404 or irf3703 becouse the old one can get warm or even hot after allot of rounds in a short time.