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MetalMan
RC-Monster Mod
 
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Join Date: Mar 2005
Location: SoCal
12.09.2007, 05:17 PM

Quote:
Originally Posted by BlackedOutREVO View Post
Yeah, I have no clue what I would do direct to diff in... but that will be cool when the cogging is gone, or close to gone

Darn rain!
It's not raining anymore, but the rear diff is still toast, and I have finals this week so my RC time is going to be reduced. Hopefully I can still pull something off.

Quote:
Originally Posted by lincpimp View Post
Nice looking conversion Metalman! You were right, the MT2 chassis is quite a bit narrower than the old redcat that I am using. You still managed to get everything in there, and I really like your mech brake setup, quite innovative!

I am suprised that the esc is having problems, what kinds of adjustment does it offer? If it has some sort of startup power or torque adjustment, set it to high, or full. Since you are using mechanical brakes and high voltage you could try a phoenix 45 hv esc. The castle startup should be better.
Thanks! This ESC offers adjustments for LVC, LVC type, startup (super soft, soft, and normal), and timing. I currently am running it with essentially no LVC (not that it matters), normal startup, and high timing.

The HV-45 would be nice, and would definitely start better (my HV-110 starts the KB45 in my Savage very nicely), but it's still $35 more than this OEM RC ESC.

Quote:
Originally Posted by ilpufxit View Post
It was only after I sold my MT2 and paid 3 times as much for a CRT.5 that I realized just how similar they are. It seems like the CRT would be better if it was a little longer and guess what, the MT2 is. I bought the MT2 because I had blown up the diffs on several 1/10 cars with BL. I thought the MT2 diffs probably would hold up. I moved on to my E-Maxx without doing the conversion. The CRT is more refined and the center diff makes it much more driveable. So now I wonder how I could incorporate a center diff into a direct drive build. It might also provide the key to reducing driveline shock?
It's too bad the MT2 diffs can't hold up to that much power, even with aluminum diff housings and all hardened gears. The CRT.5's diffs are much better.

It would be interesting to incorporate a center diff into an outrunner motor. Based on how we are currently doing this "direct drive to diff" stuff, there doesn't seem to be a way. However, a oneway on the front driveshaft would be helpful, as it would allow us to have rear-only braking, which can put the trucks sideways into turns.

There has also been another way to reduce stress on the driveline that we have only briefly discussed - adding two slipper clutch setups, with each one between the outrunner motor and the diffs. I've put some thought into it, but am very far from actually making anything of that type.


SH Z-Car, Custom Crawler, 8s Savage, 12s XTM XLB 1/7 buggy, 4wd 4-link rear/IFS Pro4 truck, Custom Hyper 10 Short Course, Belt-Drive Mammoth ST 1/8 truggy, 4s 17.5 MM Pro HPI Blitz
   
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