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Author Topic: Servo recommendations please  (Read 3655 times)

perks842

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Servo recommendations please
« on: July 02, 2012, 09:54:35 pm »

Hello all, I will be building a boat capable of tipping (like a dump truck) approx 500g to 1kg of weight off of it, can someone please recommend servo torque specifications of what i require please as I have no clue on how servos are speced, 2 servos will be doing the work to help steady it.

thank you,

Dan.
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Tug-Kenny RIP

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Re: Servo recommendations please
« Reply #1 on: July 02, 2012, 09:56:58 pm »


Have you considered a geared motor instead of a servo  ?


ken

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perks842

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Re: Servo recommendations please
« Reply #2 on: July 02, 2012, 10:01:27 pm »

to be honest i have done very little research, would this more efficient and simpler to install?
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dodgy geezer

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Re: Servo recommendations please
« Reply #3 on: July 02, 2012, 10:02:18 pm »

Until we can see a bit more detail about the mechanics of your tipping, we won't know how much mechanical advantage you are expecting, and hence how powerful a servo you will want....
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dodgy geezer

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Re: Servo recommendations please
« Reply #4 on: July 02, 2012, 10:06:12 pm »

If you have to tilt a very heavy box on the back of your boat, I might think of using a length of studding as a screw jack, with a couple of limit switches at each end. That would have no difficulty with the weight...
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perks842

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Re: Servo recommendations please
« Reply #5 on: July 02, 2012, 10:09:04 pm »

the mechanics of the tipping is very irrelevant, I only wish for it to tip this weight off the back, its not for scale or anything, making what is known as a bait boat for fishing.
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Stavros

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Re: Servo recommendations please
« Reply #6 on: July 02, 2012, 10:11:10 pm »

You building a bait boat by any chance,if so forget the tipping idea,been there had the tee shirt ect,build the box with a slide inside it obviously it is shallow on end and deeper the tipping end.use a servo to activate the rear flap, any std servoEG Futaba 30003 will suffice.Everything will just slide off the rear of it


Dave
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perks842

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Re: Servo recommendations please
« Reply #7 on: July 02, 2012, 10:14:39 pm »

great dave, so a box slightly tilted to the rear of the boat with a servo holding the arm closed? sorry if i'm not getting you here lol, surely the servo would be very strong to hold that weight back....

Thanks for the time on this guys.
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perks842

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Re: Servo recommendations please
« Reply #8 on: July 02, 2012, 10:15:15 pm »

sorry by arm i mean flap holding the bait from falling out lol
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Tug-Kenny RIP

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Re: Servo recommendations please
« Reply #9 on: July 02, 2012, 10:31:20 pm »

We have a few articles on Bait boats.

Have a look via our  'search box'  and see what you can come up with.

ken
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Stavros

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Re: Servo recommendations please
« Reply #10 on: July 02, 2012, 10:31:46 pm »

Nope it does not have to be strong at all as your flap/door is Vertical all the time,think of a box side on and draw a line inside it from corner to corner Bott left to top right,there is your slope.As for servo strength it is well powerful enough as they are used in every boat to control the rudder,if they are powerfull enough to do that then they do a door/flap with ease.The main trouble with what you want to do has major problems believ you ME.
The best bait boats are the ones with either a compartment that opens to the side of the boat or underneath.I have built many a bait boat Boilies arnt a problem as they are round and roll down a slope with ease,chopped ones,hemp,particles of any description are also a nightmare,even built one that had a hindge at the rear and had springs underneath and operated by servo,it was great for partices as it would scatter them easily but a nightmare with boilies as it scattered them everywhere !!!!!!!!!!.
Even if you built a hopper/rear box particels WILL stick to it with ease,BUT if the hopper/box is underneath like the Angling Technics range.


Dave
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perks842

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Re: Servo recommendations please
« Reply #11 on: July 02, 2012, 10:39:28 pm »

ok dave, thats brilliant, thank you very much. much appreciated
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perks842

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Re: Servo recommendations please
« Reply #12 on: July 02, 2012, 10:41:18 pm »

o and general ground bait is the aimed bait and of course the boilie main bait.
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Stavros

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Re: Servo recommendations please
« Reply #13 on: July 02, 2012, 10:49:41 pm »

So as I said a box not very good.To be honest with you the days of putting around a 1lb of bait has long gone,all you need is the equivellant amount as a PVA bag full,but what you could do of course is to build a box that overhangs the stern of the boat and drops the bait out of the bottom of that,all you will need then is a pait of hindged flaps one flap slightly larer than the other and a sero to pull a rod from underneath the flaps the rod doesn not go along the full length of the flaps only around 6mm and is enough to hold them shut........food for thouight


Dave
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perks842

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Re: Servo recommendations please
« Reply #14 on: July 02, 2012, 10:59:59 pm »

i was thinking along those lines, i love pva setup but my lake has a certain great spot which i've lost many rigs getting stuck in trees etc, the boat is a lazy mans (but effective) way lol.
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dodgy geezer

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Re: Servo recommendations please
« Reply #15 on: July 03, 2012, 12:26:35 am »

the mechanics of the tipping is very irrelevant, I only wish for it to tip this weight off the back, its not for scale or anything, making what is known as a bait boat for fishing.

The mechanics are vital. If you pivot the box at the tipping end you need to lift the whole weight of the box with the servo, so it has to be strong. If you pivot the box about 1/3 of the way back, the servo can be much weaker. And if you pivot the box more than 1/2 way back, the servo just has to latch it in position and it will tip of its own accord when released....
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