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Mechanical tech This is for the mechanical parts of a model. Gear reductions, Axles, Transmissions, General drive line


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Old 03-01-2015, 08:32 PM
trucklover trucklover is offline
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Default single speed metal tranny question

Just received my metal tranny from Rc channel. Now that I have one speed my globe liner does not want to move but when I move my stick to my now vacant ch.3 which used to control my shifting the trucks speeds up . I cannot go into reverse smoothly like I used to. I have an lrp 3 motor but cannot figure out what is going on. Any suggestions? Thanks guys.
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Old 03-05-2015, 08:17 PM
Chi-Noos Chi-Noos is offline
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Default Re: single speed metal tranny question

Quote:
Originally Posted by trucklover View Post
Just received my metal tranny from Rc channel. Now that I have one speed my globe liner does not want to move but when I move my stick to my now vacant ch.3 which used to control my shifting the trucks speeds up . I cannot go into reverse smoothly like I used to. I have an lrp 3 motor but cannot figure out what is going on. Any suggestions? Thanks guys.
What kinda controller? Sounds to me like you need to relearn the controller to only operate in the one location?
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Old 03-07-2015, 11:38 PM
trucklover trucklover is offline
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Default Re: single speed metal tranny question

I'm using the tamiya mfc-o1 controller.
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Old 03-19-2015, 06:31 PM
ricm ricm is offline
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Default Re: single speed metal tranny question

try re-calibrating the MFU?

although the change of tranny should have no impact on the MFU/ motor function.

One thing to note though - the MFU changes the power to the motor depending on which gear it thinks you are in (in addition to the coupler switch function which does something similar in 1st gear). So even with a single speed tranny, as you move the stick from a 1st gear position through to a 3rd gear position at constant throttle, the motor speeds up a bit.
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Old 03-21-2015, 09:24 PM
trucklover trucklover is offline
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Default Re: single speed metal tranny question

It happens just like you described. I have switched back to my 3spd with upgraded gears and will save my single speed tranny for another build. Thanks for the insight.
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