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Bore Reducer
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alexart77
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Bore Reducer - 11.17.2009, 08:49 PM

Bore Reducer

Cane someone please tell me how this is used or what application it would be used in? it is unclear to me how it works!
http://www.rc-monster.com/proddetail...rod=RCMreducer
Thanks
Alex,
   
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brushlessboy16
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11.17.2009, 08:50 PM

It allows you to use pinions like mod1, mod .8 and 32 pitch gears that have a 5mm bore with motors that have a smaller 1/8in(3.2mm) shaft.

Just a sleve with a space for the set screw.


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alexart77
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11.17.2009, 09:00 PM

What size shaft is in the novak velociti 3.5 R Motor?
   
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SpEEdyBL
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11.17.2009, 09:07 PM

1/8" = 3.175mm. I can see where this could be going and it doesn't look pretty. You could save yourself a lot of pain by telling us what your plan is.


Check out my custom converted 8ight:
Sub 7lb, lowest CG of any 1/8 buggy

http://www.rc-monster.com/forum/show...894#post367894

Area 52 Ranch Raceway
T.R.C.R.

Last edited by SpEEdyBL; 11.17.2009 at 09:12 PM.
   
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alexart77
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11.17.2009, 09:11 PM

So it is possible to put the "2 Speed pinion adapter 5mm bore" on a 1/8" = 3.175mm shaft using the Bore Reducer and the pinion adapter?
Is this correct?
http://www.rc-monster.com/proddetail...rcm2spdadapter
   
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brushlessboy16
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11.17.2009, 09:20 PM

You could. but save yourself the hassle- 2 speeds are not useful in electric cars and that motor is too small for anything that might need a two speed


Benjamin White
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SpEEdyBL
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11.17.2009, 09:21 PM

There is also a high risk that the 1/8" shaft will snap off due to excessive loading in that particular case.


Check out my custom converted 8ight:
Sub 7lb, lowest CG of any 1/8 buggy

http://www.rc-monster.com/forum/show...894#post367894

Area 52 Ranch Raceway
T.R.C.R.
   
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alexart77
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11.17.2009, 09:26 PM

Thanks for the info guys. you saved me a lot of money and headache.
You guys already new what i was planning to do! LOL…
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BrianG
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11.17.2009, 09:30 PM

I agree. Two speeds suck in most cases. Even when you do set it up right, if the motor has a lot of torque, you tend to break the tires loose when it shifts, lose control, and your car becomes part of the scenery. Been there, done that.
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24mm diameter that will fit the 2-speed 5mm bore adapter?
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alexart77
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24mm diameter that will fit the 2-speed 5mm bore adapter? - 11.23.2009, 09:56 PM

Does RC monster have a 1st gear 32
pitch pinion gear that has a 24mm diameter that will fit the 2-speed 5mm bore
adapter?

Last edited by alexart77; 11.23.2009 at 09:58 PM.
   
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brushlessboy16
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11.23.2009, 10:36 PM

Quote:
Originally Posted by alexart77 View Post
Does RC monster have a 1st gear 32
pitch pinion gear that has a 24mm diameter that will fit the 2-speed 5mm bore
adapter?
If i recall the 2 speed gears only come in mod1.


Benjamin White
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jayjay283
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11.23.2009, 11:17 PM

Quote:
Originally Posted by BrianG View Post
I agree. Two speeds suck in most cases. Even when you do set it up right, if the motor has a lot of torque, you tend to break the tires loose when it shifts, lose control, and your car becomes part of the scenery. Been there, done that.
Did you ever set it up to just shift, you know when its going 70mph or 80, real late like shifting from 2nd to 4th ? would that help iffin another dildo just had to learn on his own because he like to eat crow ?

I know certain spurs and pinions only fit but its not like we dont have mad machinists around to compansate.. Do you think the BL torque is just too much for a 2 speed even geared with a fat tall boy like a 1/5th gearing with a larger motor etc. heavy yes but geared right maybe faster ?

Last edited by jayjay283; 11.23.2009 at 11:26 PM.
   
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_paralyzed_
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11.24.2009, 09:25 PM

Quote:
Originally Posted by jayjay283 View Post
Did you ever set it up to just shift, you know when its going 70mph or 80, real late like shifting from 2nd to 4th ? would that help iffin another dildo just had to learn on his own because he like to eat crow ?

I know certain spurs and pinions only fit but its not like we dont have mad machinists around to compansate.. Do you think the BL torque is just too much for a 2 speed even geared with a fat tall boy like a 1/5th gearing with a larger motor etc. heavy yes but geared right maybe faster ?
we already gear our motors for top speed so a higher gear isn't necessary, and there's plenty of acceleration so a lower gear isn't necessary.

Multiple gear transmissions were invented to compensate for the powerband of an internal combustion engine. With electric motors, there is no powerband, so the engine technology simply isn't applicable to an electric motor platform.


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