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12-02-2010, 07:00 AM
| #1 |
| I wanna be Dave Join Date: Mar 2008 Location: Wayne county. PA
Posts: 2,507
|  gear ratio calc..........
ok i have a bunch of online gear calc's that don't do what i'm looking for them to do, i doubt i will find one either....and i did a search to find one that will allow me to input my gear info from pinion/spur to tranny gears....i also want to use my gear input from a transfer case also, plus there is the ring/pinion diff gear ratio also i want to use also....i think to better understand what i'm after is the final wheel speed/axle rotation at the hub  ....i know the math to find the ratio's of each set of gears from pinion/spur, tranny, transfer case and diff's....but i'm looking to find how each output shaft RPM will effect each componet after each other right on out to the axle RPM....i know i need to start with motor RPM....is there such a beast of a calc that will let me input all the ratio's of each componet i have or is there a math-matical process to get what i'm after or am i just gonna have to try different gears in each unit to find what works best for what i'm looking for  ....i know i know  ........bob.... |
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12-02-2010, 11:52 AM
| #2 |
| 20K Club   Join Date: Jul 2004 Location: Sending illegals home one Hayabusa at a time.
Posts: 22,981
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This is all really simple math, it wouldn't be that hard to just do it by hand. Or put a simple spreadsheet together, it's just basic division and multiplication. |
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12-02-2010, 11:58 AM
| #3 | |
| I wanna be Dave Join Date: Sep 2005 Location: Houston, TX
Posts: 16,952
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12-02-2010, 06:09 PM
| #4 |
| I wanna be Dave Join Date: Mar 2008 Location: Wayne county. PA
Posts: 2,507
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yeah i thought it might be that way, i use excel but have trouble making the formulas to get it to do what i want........bob .... |
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12-02-2010, 06:24 PM
| #5 |
| Rock Crawler Join Date: May 2009 Location: Queensland, Australia
Posts: 610
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try this one http://scriptasylum.com/rc_speed/top_speed.html Does just about everything you can ever want. |
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12-02-2010, 07:12 PM
| #6 |
| Newbie Join Date: Oct 2010 Location: West Chester
Posts: 5
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there is an r/c gear calculator app for the droid  |
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