Crawler Tech: How to Build a Winch

[ukcrawler]

just in case anyones interested, i found a really good scale looking, ultra tough wire for winchs, it comes in many strength and thicknesses, and wraps real nice round a drum, and its very cheap, heres the link,

http://www.tacklebargains.co.uk/acatalog/Wires_Traces.html the top one.

its in the uk but im guessing youll b able to find something similar in america or elsewhere, they do international orders though, ill provide a video when i get it on the crawler, bye for now

 

[midnight]

just in case anyones interested, i found a really good scale looking, ultra tough wire for winchs, it comes in many strength and thicknesses, and wraps real nice round a drum, and its very cheap, heres the link,

http://www.tacklebargains.co.uk/acatalog/Wires_Traces.html the top one.

its in the uk but im guessing youll b able to find something similar in america or elsewhere, they do international orders though, ill provide a video when i get it on the crawler, bye for now

It is also known as wire trace for fishing lines. The kits that you get to make your own-length traces. Well thats what its called here in Oz.

 

[riskybusinessoh]

traxxas 2055

Hello,
Has anyone ever tried a traxxas 2055 servo 80 oz of torque was wondering if it would be strong enough to make a winch out of i have a couple of extra laying around i could use without spending any extra money.
Thanks

 

[Cloak]

Hello,
Has anyone ever tried a traxxas 2055 servo 80 oz of torque was wondering if it would be strong enough to make a winch out of i have a couple of extra laying around i could use without spending any extra money.
Thanks

I practiced on one just this last week, they suck and really aren't nearly strong enough.

 

[riskybusinessoh]

2055

Good to know will save me some time messing with it,i just thought if it would work i could save a buck or two.
Thanks Terry

 

[bktoys]

m3 mod

anyone know of a tech article on converting the Airtronics MX-3's 3rd channel to an on-off-on switch? They are just on-off from the factory, but I would like to use it to operate a winch. any ideas?

go to the home page here in tech is a write up on the complete mod 3 diffrent ways by roktoy (Jay Kopinski)

 

[TwistedCreations]

Hello,
Has anyone ever tried a traxxas 2055 servo 80 oz of torque was wondering if it would be strong enough to make a winch out of i have a couple of extra laying around i could use without spending any extra money.
Thanks

Yes, a 2055 will work fine... It is not as "durable" as a 645mg would be, but if you already have them laying around, use them. I used one to try and see also and made a video. I'm not sure if I still have that video or not(i'll look) but it would raise my 11lb moonbaby straight up the dryer.

Edit- I can't find it. I think Badger deleted it off of RCMedia.....

but on the back of the main ouput shaft, you will have to drill it out to move around on the pot because it is plastic and looks like a + and needs to be more O

 

[GraTou]

I'm having trouble making this winch thing. I'm just a spare servo as a tester before I get the good ones. All gears are plastic inside and it's some Futaba one. I shaved down the little "nub" on the output gear since there is no pin. I adjusted the pot adujster so it doesn't spin, and I replaced all gears, but it still functions as a regular servo. I can't figure out what is wrong or what to do.
Can anyone help me?

 

[TwistedCreations]

flip the output gear over and look on the bottom side of it( part that slides on the pot) it has to be like a O shape instead of a + or I that fits on the pot..

 

[GraTou]

There is a "+" shape there.

 

[DISTURBIN' tha PEACE]

Drill the "+" out of there. That should do it.

 

[TwistedCreations]

as mentioned a few times in this thread, drill out the + so it looks like a O..... drill it just enough so that is doesn't catch the pot anymore and will spin around and around

 

[Big_Ern]

Using a servo "winch" modifed like this. when you stop spooling it in, will it hold its position? ex: if I spooled it halfway it, will it hold the cable/wire where it is with a bit of wieght on it, or will it spool back out as the wight pulls on it?

I'm wondering if this mod will work for a suspension suck down winch

 

[Grizzly4x4]

Using a servo "winch" modifed like this. when you stop spooling it in, will it hold its position? ex: if I spooled it halfway it, will it hold the cable/wire where it is with a bit of wieght on it, or will it spool back out as the wight pulls on it?

I'm wondering if this mod will work for a suspension suck down winch

To answer the first question, yes, the winch will hold its position as long as the center trim is set correctly.
I have used the 133 oz-in servos as a suck down winch before but they would not hold the suspension partially compressed. As soon as the winch was stopped, the suspension would overpower the servo. A stronger servo might work...... Now that I think about it, the problem may have been the drifting off center. It was a long time ago.

Bottom line is yes, the servo will hold position with the switch in the center. Just like rear steer. "thumbsup"

 

[yotachump]

anyone know of a tech article on converting the Airtronics MX-3's 3rd channel to an on-off-on switch? They are just on-off from the factory, but I would like to use it to operate a winch. any ideas?

If you havent found it here it is;-)

http://www.rccrawler.com/mx3.htm

 

[Big_Ern]

To answer the first question, yes, the winch will hold its position as long as the center trim is set correctly.
I have used the 133 oz-in servos as a suck down winch before but they would not hold the suspension partially compressed. As soon as the winch was stopped, the suspension would overpower the servo. A stronger servo might work...... Now that I think about it, the problem may have been the drifting off center. It was a long time ago.

Bottom line is yes, the servo will hold position with the switch in the center. Just like rear steer. "thumbsup"

But can it hold the position anywhere other than center? Ideally I'd like to be able to partially spool it in and have it hold that position until I either spool it in more or spool it back out.

I suppose this could be done with an on-off-on toggle switch that doesn't return to center and a pot to control how far in/out it is, but I imagine there's a better way to do it...

 

[Grizzly4x4]

But can it hold the position anywhere other than center? Ideally I'd like to be able to partially spool it in and have it hold that position until I either spool it in more or spool it back out.

I suppose this could be done with an on-off-on toggle switch that doesn't return to center and a pot to control how far in/out it is, but I imagine there's a better way to do it...

Since the potentiometer is removed, there's no such thing as "center" anymore, "center trim" only refers to the "stop turning" position.

Yes, it will hold at whatever position you stop it at, unless the suspension is strong enough to overpower the servo, then it will pull the cable back out.
I just tried it on my 645 winch servo, when I stop the winch there is alot of resistance but if I turn the drum hard enough I can make it move. A stronger servo might be able to resist this better.

 

[Big_Ern]

ah ok, that all makes sense now. I had wondered what the pot in the servo was there for and why it was being removed. I assumed it was just to make it go round and round, but didn't think it would remove the return to center in the servo too

I like this idea 8) So I could just use a self centering toggle or rocker switch then, right? Leave it in the center "off" postion wherever the spool is, and just click it out to either "on" to spool in/out as needed

 

[Grizzly4x4]

ah ok, that all makes sense now. I had wondered what the pot in the servo was there for and why it was being removed. I assumed it was just to make it go round and round, but didn't think it would remove the return to center in the servo too

I like this idea 8) So I could just use a self centering toggle or rocker switch then, right? Leave it in the center "off" postion wherever the spool is, and just click it out to either "on" to spool in/out as needed

You got now. "thumbsup"

 

[Big_Ern]

Thanks a bunch for all your help Griz