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#1
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Gear- ratio help!
Hi all
I have just built a new car (Abisma AB2.4... !) which has this spec: Hello, the internal translation is 2,92 the external translation is 2.78 So I am planning to use (maybe) a 6.5 turn brushless motor. I'm wondering what pinion size is a good choince? I have to mention I think it's a standard 1/10 model, perhaps a little big for 1/10 but not much..
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n(each):n(<3r):n(sky)|</z>>P(Name)>> > (Ish!) |
#2
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Any help folks? I have a wide variety of 48dot pitch pinion s to choose from ..
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n(each):n(<3r):n(sky)|</z>>P(Name)>> > (Ish!) |
#3
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these appear to be available on the web in wither brushless or brushed versions
brushed is a 15t brushless is 3300 kv not sure what that equates to in "turns" brushless version runs a 23t pinion be wary as they may be .6 pitch module not 48 dp it may not mesh correctly regards |
#4
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THANKs. Amazing.
So it seems 13.5 turn is (*very roughly!) equiv to 3300kv. So with a 6.5 I would want something say 14-16 tooth? I believe the spur is 48dp but I shall double this
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n(each):n(<3r):n(sky)|</z>>P(Name)>> > (Ish!) |
#5
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these are more for fun than hardcore racing I wouldn't but as fast motor in as a 6.5 to start with
it may destroy transmission regards dave |
#6
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Ok cool thank youi
I believe the motor is already fitted but I will rethink my position when I get home. I have quite a few 540 brushless to choose from. Shouldn't be a problem. Just wish I could get a breakdown of the gear ration / pinion selection maths. I guess I could google hard for it.
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n(each):n(<3r):n(sky)|</z>>P(Name)>> > (Ish!) |
#7
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start with a 20 t pinion
run for short period check motor for temperature if cool run for a couple of more minutes and check again if still cool gear up and test again regards dave |
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