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doc_pathfinders · August 16th, 2010, 07:04

Lo all,

i wanted to just put a few comments down now about something i picked up a few weeks ago..

as well as a Neo Strike chamber HOP unit

i'll put up pictures that i took later, but first of all i'll add a few comments:

the finish on this gearbox is great, a very fine phosphate i would guess..
the MOSFET is interesting, i have the newer (and better i would guess) Single mosfet unit rather then the older Double units (the double's were known to have problems)

i have been running this in my SPR MK12, and after a long rough start it's pumping out 160 M/S with my 0.25's

Problems:
Fuse, it has a 35 amp miniblade-type fuse, this has gone after looong strings of semi automatic (i would guess it's about 30 seconds to 45 seconds of constant semi, it's just pulling too much current) while this was only found in testing (i don't intend to put anyone in hospital, but testing properly involves harsh testing) it's still a point of concern that maybe at some point during a firefight your gun might stop. the mosfet unit casing gets quite hot (from the mosfet) and i was thinking of using some arctic 5 heatsink compound i have here on it to increase the rate that heat can be transffered to the heatsink, anyone have any ideas?

putting the spring in!
the included instructions call for the box to be dis-assembled and the motor height adustment be done with the handle attached to the remainder of the gear box.. otherwise the bevel gear might sustain damage in moments, add into the fact that i can see some difference in the bevel gear included on the Provided magnum means you need to be sure what's going to happen when you pull the trigger that first time!

after a couple of weeks of problems with a 'POS' DBOYS body, and a subsequent swap to a classic army one i had around, i finally realised that i was onto a real winner, the trigger response is great, i ran it with a couple of old 3300 9.6v NiMH batteries at first, blew a fuse and changed to a 30 amp (down from 35, all they had at the time) and it went well on a big 2200 11.1v lipoly where it's been tested and finally gotten working.

i'm amazed that a 9.6 could pull back a m170 and the rate of fire wasn't bad at all.

also, watch out about the screws in the gearbox, after a while of testing i noticed that the screws were very loose, loosing a screw in a while loose!

so a dab of loctite (blue) is advised

full review to be submitted later, with pics.

August 16th, 2010, 07:04	#1
doc_pathfinders Trader rating Join Date: Dec 2009 Location: Cyprus	SYSTEMA m170 gearbox set Lo all, i wanted to just put a few comments down now about something i picked up a few weeks ago.. as well as a Neo Strike chamber HOP unit i'll put up pictures that i took later, but first of all i'll add a few comments: the finish on this gearbox is great, a very fine phosphate i would guess.. the MOSFET is interesting, i have the newer (and better i would guess) Single mosfet unit rather then the older Double units (the double's were known to have problems) i have been running this in my SPR MK12, and after a long rough start it's pumping out 160 M/S with my 0.25's Problems: Fuse, it has a 35 amp miniblade-type fuse, this has gone after looong strings of semi automatic (i would guess it's about 30 seconds to 45 seconds of constant semi, it's just pulling too much current) while this was only found in testing (i don't intend to put anyone in hospital, but testing properly involves harsh testing) it's still a point of concern that maybe at some point during a firefight your gun might stop. the mosfet unit casing gets quite hot (from the mosfet) and i was thinking of using some arctic 5 heatsink compound i have here on it to increase the rate that heat can be transffered to the heatsink, anyone have any ideas? putting the spring in! the included instructions call for the box to be dis-assembled and the motor height adustment be done with the handle attached to the remainder of the gear box.. otherwise the bevel gear might sustain damage in moments, add into the fact that i can see some difference in the bevel gear included on the Provided magnum means you need to be sure what's going to happen when you pull the trigger that first time! after a couple of weeks of problems with a 'POS' DBOYS body, and a subsequent swap to a classic army one i had around, i finally realised that i was onto a real winner, the trigger response is great, i ran it with a couple of old 3300 9.6v NiMH batteries at first, blew a fuse and changed to a 30 amp (down from 35, all they had at the time) and it went well on a big 2200 11.1v lipoly where it's been tested and finally gotten working. i'm amazed that a 9.6 could pull back a m170 and the rate of fire wasn't bad at all. also, watch out about the screws in the gearbox, after a while of testing i noticed that the screws were very loose, loosing a screw in a while loose! so a dab of loctite (blue) is advised full review to be submitted later, with pics. __________________ "History teaches that all conquerors who have allowed their subject races to carry arms have prepared their own downfall by doing so." -- Adolph Hitler, April 11 1942. Adolph hitler supports gun control.. Do you? Sic Semper Tyrannis.