Serious Electronic Issues...Need Help!!!

[Rckcrwlr]

Originally Posted by johnrobholmes

Your diagram looks good.


I would start at 6v and test the temps on the servos, keep them under 130 or 140 on the case for safety. You can always increase the voltage and get more power, but you can't unfry a servo if you overvolt it.

Is overvolt a word???? If not, it is a holmesism.

I will hook it up tonight.

I will let everyone know.

Thanks

[666]

I run 7.2 packs to my 5955's, and they hover around 120 degrees while bashing.

[Rckcrwlr]

Just to keep everyone up to date.

I finished the wiring and did a test run on the wife's rock garden


The Regulator is pushing out 6.05V with 8cells.

At first everything was working great. After about 3 mins, the rear servo (HS-945MG) started getting weak. It would not turn or it would not hold center when turning front only. Took a temp reading...hear is what I found:

Regulator = 94*
Front HS-5955TG = 118*
Rear HS-945MG = 148*

That is the problem...these things are heating up and then failing. They work great when at ambient temp. Soon as they get above 120* they are useless.

What could be causing it to heat up that high?

Is my option only to go to another digital servo?

I have a comp on Sunday...Panic has set in...

Let me know.

Thanks,
John

[kodiakman]

I run two 5595 with my super and novak reg and specktrum .No problems now at all.Like a gtg

[Rckcrwlr]

That is what I am thinking...It took me a long time but I think I nailed it. Now I just need to find a 5955 or the like before Sunday.

[PaloAltoK5]

Originally Posted by Rckcrwlr

That is what I am thinking...It took me a long time but I think I nailed it. Now I just need to find a 5955 or the like before Sunday.

5955's are great servos, but if you can't find one and are running a radio with EPA, you can also run HS-5995TG servos, same 333 oz at 6.0 volts, but 180^ rotation instead of 90^. The other advantage of the 5995, is if you up the voltage to 7.2 volts you'll get 417 oz of torque!

[Rckcrwlr]

Originally Posted by PaloAltoK5

5955's are great servos, but if you can't find one and are running a radio with EPA, you can also run HS-5995TG servos, same 333 oz at 6.0 volts, but 180^ rotation instead of 90^. The other advantage of the 5995, is if you up the voltage to 7.2 volts you'll get 417 oz of torque!

Great news...I am just hoping I find one before Sunday's Comp...417oz of finger pinching...

[666]

You know what I did on the back of Rocktapus to make it quit frying servos?

[JohnRobHolmes]

Originally Posted by 666

You know what I did on the back of Rocktapus to make it quit frying servos?

made the servo horn work at a more effective angle maybe?

[666]

Lol! Thats a key thing, this was much easier and cheaper!

[Rckcrwlr]

Originally Posted by johnrobholmes

made the servo horn work at a more effective angle maybe?

I tried that before when I first started having issues. I will look at it again but I don't think that is the problem.

[Rckcrwlr]

Well guys...I think I am locked in. At the comp yesterday, no shut downs, lost steering and a class win!!!

I want to thank all of you for the help...it was a long grulling journey (not to mention expensive) but it all came out.

Thanks again,
John

By the way, JRH...that Crawlmaster is just Sick...

[cartronicshn]

Congrats on the win man , good to hear you solved your electronics issues

[JohnRobHolmes]

Yes, congrats! Happy to hear you got everything running smoothly after all.