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Ben Piecuch 20-02-2006 08:24

Dewalt Shifting Questions
 
A question for the teams who have successfully shifted the Dewalt XRP's.

Does it make a difference how you control your servos to shift? We are presently running both servos off a single PWM Y-cable, so that we only need to use one variable in the code. The alternative is to run two different PWM cables and use a second variable in the code. This isn't a difficult thing to implement, it's just a pain to switch it over at the moment.

Our concern is this... Since the servos are powered through the PWM cable, and we're presently splitting that with a Y, are the servos only receiving 1/2 of the power they require?

Thanks for all the help.

BEN

Bruce C. 20-02-2006 10:32

Re: Dewalt Shifting Questions
 
Quote:

Originally Posted by Ben Piecuch
A question for the teams who have successfully shifted the Dewalt XRP's.

Does it make a difference how you control your servos to shift? We are presently running both servos off a single PWM Y-cable, so that we only need to use one variable in the code. The alternative is to run two different PWM cables and use a second variable in the code. This isn't a difficult thing to implement, it's just a pain to switch it over at the moment.

Our concern is this... Since the servos are powered through the PWM cable, and we're presently splitting that with a Y, are the servos only receiving 1/2 of the power they require?

Thanks for all the help.

BEN

We are using the Y-cables to shift both servos at the same time. Actually, we are using two Y-cables to shift 4 servos at the same time (two sets of CIMs and DeWalts on each side.) It works fine.

RogerR 20-02-2006 12:08

Re: Dewalt Shifting Questions
 
if you are having trouble shifting the dewalts using the set-up described in the whitepaper, it may be because of the indexing clip; there is a small metal clip that serves as a spring that helps keep the dewalt in gear; unfortunately, it also makes it hard to shift using the servo. if this is removed, the servos shouldn't have any problem.

Ben Piecuch 20-02-2006 13:40

Re: Dewalt Shifting Questions
 
Problem solved. It was a combination of a low backup battery (which powers the servos) and one of the dewalts with a sticky shifter. We replaced one entire side and it works just fine.

Thanks for the help with the Y-cable. And yes, we have already removed all the detent clips.

BEN


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