Servo strengthener. Make a 7980 twice as strong!

[Calderwood]

Originally Posted by Erin

Very true, but I run them at 9-12v, so it should be to bad. Erik is gona try and figure out the gear to spool ratios and see what it looks like.

12v must speed it up pretty well!

[Erin]

Originally Posted by nigels_world

12v must speed it up pretty well!

Yea, lol, kind of an angry noise

[Erik D_lux]

Originally Posted by Illeagle

Erik how much height does it add to the servo? Do you have a closer side view pic?

From the top of the plastic on the servo to the top of the nut on the gear is about .875

Does this pic help any?

Originally Posted by nigels_world

A 645 operating at 1/2 speed would take a loooong time to run line wouldn't it? I think it would make a good winch for the 1/6 scale guys though.

The math is over my head but the servo should be 2x the strength, 2x as slow if you using the same size spool but, if I were to make the spool 2x larger than what you use typically I think you could possibly get the best of both worlds as it should still be way stronger and possibly even faster?

With this large of a hub gear I should be able to make a spool that is huge so you could even regulate the speed/power with how much rope you have on the spool.

[Calderwood]

Originally Posted by Erik D_lux

From the top of the plastic on the servo to the top of the nut on the gear is about .875

Does this pic help any?

The math is over my head but the servo should be 2x the strength, 2x as slow if you using the same size spool but, if I were to make the spool 2x larger than what you use typically I think you could possibly get the best of both worlds as it should still be way stronger and possibly even faster?

With this large of a hub gear I should be able to make a spool that is huge so you could even regulate the speed/power with how much rope you have on the spool.

If you have it geared 2:1 and you double the size of the spool it would be the same as the standard spool with no gear reduction. I think the biggest market for you will be the 1/6 scale guys. If you can figure out a clutch so that it will freewheel to let out line the slower speed wouldn't bother as many of the standard scaler guys.

This is such a cool product. I'm really interested to see where this goes.

[Shinjari]

Yeah a clutch system would be amazing so I can freewheel/spool it.

[Erik D_lux]

I got the gears today so everybody has been shipped!

I have 2 more on the site, this is all I am going to make for a bit until I am 100% sure I dont want to make changes. As we all know with supers, nothing is standard so I want to make sure nothing is missed on the next batch. If you want one now, the time to buy is now before they are gone.

[WAM]

As Nigel said, total net leverage is all that's important. So I could exactly duplicate your reduction-gear winch by just running a winch spool half the diameter of your spool and no extra parts. If that's not too small a spool to be practical. For example it won't hold as much cord. But line speed and pull would be identical.

What experiences have people had running higher than rated voltages in their servos? I remember Del Monte showing up running a 7.4V servo on 12V. It was impressive, but I wonder if they live long?

[Erik D_lux]

Yeah, looks like if you used the same size spool, you could get 2x the strength, 1/2 the line speed or, you could make a 2x bigger spool and you would have the same strength, same line speed as stock.

So it really looks like the only advantage would either be more power at the cost of speed OR being able to fit more rope and everything else the same. Does not really seem worth it.... I guess I had the idea that there was a need for an ultra powered winch. Sounds like thats not really the case?

You could also use different gearing than the 2:1. Sounds like it just goes in a big circle though.

[WAM]

That's true of 1:1 jeep winches also. For a given size winch you can gear for pull or speed, but not both. To get both you need more power which generally means a larger winch drawing more amps.

[Erin]

Originally Posted by WAM

As Nigel said, total net leverage is all that's important. So I could exactly duplicate your reduction-gear winch by just running a winch spool half the diameter of your spool and no extra parts. If that's not too small a spool to be practical. For example it won't hold as much cord. But line speed and pull would be identical.

What experiences have people had running higher than rated voltages in their servos? I remember Del Monte showing up running a 7.4V servo on 12V. It was impressive, but I wonder if they live long?

Ive been running 9-12v on a 645 for over a year and it seems fine. Thats normal occasional winching plus 30-45mins of straight pulling a well on very vertical mountain tops. Its gotten warm but never hot. Without the pentiometer, its just a motor in the end, and a slow one at that.

[Erik D_lux]

For all of those who ordered these mounts.....

The production units look like they have some slop in them on the steering arm/hub gear. I am thinking a simple shim will take care of the issue. I will work on it today and get it figured out ASAP. If its just a shim, I will look up the orders and get some shipped out ASAP.

[Erik D_lux]

Ok ya'll

Shims are here and they snugged everything up on the hub gear. I am thinking this slop caused the gear teeth to slip under a load. I am going to update the instructions in this thread so you know what to do. If anybody feels its over their head, they are too lazy to do it or simply think they paid money for a better product just send me a PM and I will get parts to you that need no modding or effort.

[Erik D_lux]

Another thing I wanted to mention was to check your servo output. If its sloppy it can cause problems. I found both my cases were broke on the output. For an excellent mod check this thread..

Hitec 7950 possible center case Mod, time will tell......

[ittybitty]

Thanks for taking care of this so quickly Erik...greatly appreciated

[Erik D_lux]

Big thanks for not only catching it but bringing it to my attention! I know it made my rear servo much happier and I am sure others will appreciate it too.

[filotr14lsdude]

Where abouts does this shim go?
Between the bolt and bearings on the gear/flat topped bolt?

[Erik D_lux]

Did you check out the instructions in the beginning of this thread? I will always try and keep them updated.

Shim goes between the lower bearing and the aluminum gear.

[filotr14lsdude]

I'm still waiting for mine to show. I skim read the info. I was going to read it when i have the kit in hand.

[Erik D_lux]

No worries. I was just making sure you didnt read it and if you did, that it made sense.

[filotr14lsdude]

It does make sense. Will make more sense when I have everything in front of me.