Okay so I've been building "the ultimate dmr" lol and it's been nothing but a pain in the ass.
To the issue
The pick up tooth as you can see is nicely chopped and the fourth (third I guess as the first tooth is shaved from the factory) tooth was also stripped/broken) the other two teeth I shaved for clearance/aoe. Now what I'd like to know is what can cause such a failure. The gun seemed to run great (aside from some over spin from time to time) then it just quit. Here is the build.
Vfc 417 shell
Shs13:1 gears
Lonex a1 motor.
11.1 lipo.
Merf aab
All in all nothing super fancy. The only "odd ball" thing is its a high fps setup, should be sub 450fps but still high for the 30+rps I'm going for. So what I did was picked up the all metal lightweight shs piston (i hear they fit better in the vfc gearbox, I had to "slim out" the lonex piston) but before I stick it all together am I missing something? I have a sorbo and correct the aoe