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Old August 13th, 2013, 16:21   #91
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Originally Posted by Azathoth View Post
I don't understand what the deal with parts from Japan is. I have had zero issue in getting parts direct from the factory (and I am not a wholesaler, dealer, retailer, distributor or have any relationship with systema).

I've put in three part orders in the past 5 months, and had delivery within 2-3 weeks. I don't understand what the hoopla is with getting support from the factory that people are talking about.

I have a gripe with the 2.5 motor. It gets very hot under 9.6v NiCD and struggles to pull a stock systema blue cylinder when the battery is at 75% of charge. Same battery at 75% charge in a stock 490 cycles the gun cleaner and it doesn't heat up the motor. At about 50% charge 9.6NiCD the FCC 2.5 cannot cycle the M110 at all, however a 490 can continue to cycle the gun for another 200-300 rounds.

Observed with two different 08 factory guns now, with factory electronics with three different FCC 2.5 motors.

This tells me wither the 2.5 pinion gear is not meshing properly with the bevel gear ; or something is terribly wrong with the motor.
Lol you must one of teh few purist left that still use nicads for PTW all the heat issue and other problem is os one of teh reason that they develop the 3.0 motor, they have tested it with different powered LiPo from 7.4 to 16V with no issue or heat up so far there has been 8 different prototype from design to actual production batch, the videos of the bench test was done with the production batch

Originally Posted by ThunderCactus View Post
I have not had any specific issues with my FCC 2.5 motor as of yet, but I'll be monitoring it closely next year.
But as Brad said, for the love of god change those brush hood screws to plastic!!!
And you don't have to go purely on Brad's word for that one. Systema and some others have tried using metal screws on AEG motor before, and those are the motors that give us the most problems.

Also, I don't like the new motors construction, I don't trust that in the slightest. All screws holding a motor together need to be mounted axially. It's been that way for decades, and there's a good damn reason for it. I understand and respect that FCC is trying to re-invent the wheel here, but some things are just terrible ideas and that right there is one of them.
Are the threads on the housing roll formed or cut?
I guarantee those threads aren't tight tolerance and those are just regular socket head screws. There's natural slack in all threads to begin with, and if by some chance someone under torques or goes over yield strength on a screw, that motors gonna come loose and burn out your bearings really fast, and it doesn't take much misalignment to kill a bearing at 25000rpm
these motors was tested at 34000 RPM (see the video) with no issue, the plastic screw was originally used in one of the prototype but it failed that is why they went back to metal and so far out of the eight prototype there has been 0 failure with the exception of the one that uses plastic screws, all along the eight prototype they also tested different cores to rectify the heat issue, I have one of the prototype motor in my gun. Now the core in my is not the finished production core but it ran at 32000rpm with no heat buildup compared to the 2.5 the difference is almost night and day.

The 3.0 motor is not the be all and end all of motors there a few more in development but so far these are the motors that gives the best stability for mass market production, if future there will be more coming out of FCC in terms of new product and stronger presence in for the TW segment.

Last edited by wildcard; August 13th, 2013 at 16:28..
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