Print

Please login or register.
1 Hour 1 Day 1 Week 1 Month Forever
Login with username, password and session length.

[Champdriver]

I am looking for a 3 way rc switch ( forward - off - reverse) that plugs into a receiver and works on brushed motors.I’d like to use ti control an anchor winch. I can find all kinds of on off switches on Amazon or speed controllers but can’t find a three way switch.
Am I missing something or what.
Feed back would be appreciated.


Michael

[tica]

Hi
You could look for a RC Crawler winch controller, but be careful some are on/off/on and some works as a ESC => FWD/RWS.
BrCarsten

[T888]

Any good  for you




https://youtu.be/-GmfxfknKFE?si=PyyZgTQnLbPnjqop

[Bunkerbarge]

Real anchor winches vary in speed so rather than a simple switching unit why don't you fit a simple small speed controller?  That will actually make housing the anchor easier as well.

[DocMartin]

The switch you need is a dual or twin switch (2-way).  The switch can be wired such that the polarity of the motor leads are reversed.  This will give your motor a FWD and REV direction depending upon which way the switch is activated (anchor up or down).  This type of switch will work well with an anchor motor and can also be used to provide simple control of a bow thruster.  IMHO, this type of set-up is easier to arrange than trying to use an ESC, especially if you want scale function.  You don't really need "high speed" chain retraction.

Though currently out of stock, I would suggest something like the Action P44 Universal Twin Switch:
https://www.componentshop.co.uk/p44-universal-twin-switcher.html.html

Take a look at the PDF found on the page link above.  It shows a motor wiring diagram that would be applicable to your needs.

[Bunkerbarge]

 You don't really need "high speed" chain retraction.

I don't think anyone suggested you did.  Slow speed however is very useful for accurate housing and faster speed for letting go is useful.  Most anchors are simply let go on command, they are rarely paid out.  If you want scale function you need to control the speed.  If you are happy with on or off, go for a switcher.


I would equally use a speed controller for a bow thruster, which is far more controllable than simply on or off and gives much more realistic scale performance.  The wiring of a brushed speed controller is no more complex than a switching unit.

[John W E]

hi there


This topic of anchor winches has been covered a couple of times on this forum - so a good search may just pay dividends.   I know somewhere on here there is a chap who built a winch mechanism which allowed the anchor to freefall to its depth and then be winched back in under power.


I, myself, have built a couple of winches for hauling the anchor in and out; one for HMS Leeds Castle and one for HMS Lindisfarne. 


I use an electronic switch which I purchased from Ebay, it gives me forward, stop and reverse.   That was for HMS Lindisfarne.


I used an old Electronize 2way switcher for HMS Leeds Castle.  This unit was non latching and worked, not from a switch, but from the handset - the up and down lever.   


Couple of things to remember - build a slipping clutch into the drive to your winch - so, if you inadvertently haul the anchor too far into the boat, it will slip when it reaches the stop - rather than destroying your winch.   The other thing is when your anchor chain/rope is fully paid out - paint or put a big marker on the end of your chain so you can physically see it from the shore when your model is on the water.  This will help you know when to stop paying out the chain and it also prevents the chain being wound back in without you knowing.


Couple of links and pictures may help you.


 If you look at HMS Lindisfarne you will just see the anchor chain hanging from her side.  This is done deliberately to stop me pulling the winch out of the deck.


There is also a link to the unit on Ebay - it is not exactly the same as the one I used, it is similar though - if I can find the link to the one I used I will add that link,.


Sadly, Electronize are not in production now.   You may be able to pick up a switcher 2nd hand.

1CH 2 Way Relay Switch Module Electronic Switch Controller for RC Car Aircraft | eBay


ANCHORS AWAY (modelboatmayhem.co.uk)




John

[Champdriver]

Any good  for you




https://youtu.be/-GmfxfknKFE?si=PyyZgTQnLbPnjqop

This is very close to what ti need, I think I can make it work with couple of mods, thank you.


Michael

[Champdriver]

I found this on another forum and seems compact and simple with a couple of limit switches and uses a servo for control.Everyone has had some really good feedback on here.This has given me much food for thought not just for anchor but winches and cranes as well.
Thank you all!

Michael

Multi-mode Winch



Here's a three mode winch: Reel position 1. engaged to raise anchor or haul towline, 2. freewheeling to drop anchor or release towline, and 3. lock position (if desired).
Requires 1 servo and a Tx channel that can place the servo into three positions (only two if the "lock" option is not used.)
Pictures of my tug winch and construction sketches attached.
Most assembly with hot glue.
Shuttle bar and its support base made with 1/4" thick delrin.
The small cam bar is necessary to compensate for the arc of the servo arm, since the shuttle bar must slide straight back-and-forth along the servo body.
Works really well - I was surprised....

EDIT 1 - Winch drive mechanism drawing has detail of shuttle bar construction added. The bar is basically suspended from the servo arm and swings to slide the shuttle bar and reel to desired position.

EDIT 2 - For automatic stop:
Put a normally closed microswitch at a point that the anchor head or such will activate and open the microswitch when the anchor is fully home. That will cut out the motor. With this system, your control servo is still active though.
As soon as you switch to freewheel, the anchor will drop and the "anchor home" microswitch will be deactivated (closed), and the motor will be again ready to pull when you go back to the Engaged position. See added sketch.

[Champdriver]

Apparently I need to inure out how to and pics…..more to come.

[Martin (Admin)]

Photos on the forum - a Quick guide!

https://www.modelboatmayhem.co.uk/forum/index.php/topic,61103.0.html