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A4DTM
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08.30.2006, 07:08 PM

Tom, i've always got my away message on, but am usually at my computer.. seems to be the opposite w/ you :P

I hadn't thought of belt drive actually, but I'm gonna try and make this as simplistic as possible. i took off the 2speed last night, and the gear keys to the layshaft with a single roll pin and eclip. I went to the hobbyshop about 10min ago, but they're closed due to illness :( I figure a 51t or 52t M1 gear should work after filing down the motor's fins a bit. I'm working on redesigning the battery mounts at the moment, and trying to find a 2nd point of contact, so they'll be more stable.. not alot of options due to the belt height being just above the chassis. time will tell heh.
at least I know you got my message, be on more often, I'm curious what you've been up to. anything ever come of the MAME cabinet?

edit.
oooh
I just saw this link that cemetery_gates posted. http://www.scriptasylum.com/rc_speed.html

the car comes with a 49t first gear, and 45t second.
and I just saw that mike's got 16t, 18t, and 20t M1 5mm pinions. when I bought my motor a while ago, 14t was the largest I could find, so that's what I've got at the moment.

this looks promising. the 540c-9l on 5s lipo will be around 62k rpm, so i know that that's a little high, no need to inform me, but here's what the speed calc comes up with.

spur | pinion | speed

49 | 16 | 75.14 MPH
49 | 18 | 84.54 MPH
49 | 20 | 93.93 MPH

45 | 16 | 81.82 MPH
45 | 18 | 92.05 MPH
45 | 20 | 102.28 MPH

fdr is around 6:1. anyone know what kind of gearing i "should" be running? I don't even know what say an emaxx's fdr is. but this car will be lighter, and have alot less rotating mass from the tires.

Last edited by A4DTM; 08.30.2006 at 07:44 PM.
   
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