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Post by Deleted on Sept 1, 2019 16:22:30 GMT
I would like to put an internal helm on my inspection lunch. Obviously using hydraulic steering but the Morse doubler things seem aggrevational so i wondered about just fitting a linear actuator to the single lever control using some sort of bodge then control that from a distance using a reversible pwm speed controller. Its not rocket science to move a lever a few inches. Back of envelope sketch It will need to be quick release capable. M - Morse BA - Bracket Arrangement L- Linak B-Battery Are there any obvious flaws to this idea which I have not accounted for ? Helm position approximately 6m from Morse control.
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Post by Deleted on Sept 1, 2019 18:20:40 GMT
Are there any obvious flaws to this idea which I have not accounted for ? You are completely nuts.
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Post by Deleted on Sept 1, 2019 18:23:02 GMT
I think it might work !
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Post by faffer on Sept 1, 2019 18:37:50 GMT
Looks and sounds complicated to me, justme and not understanding what youwnat to do.
been a long week.
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Post by Deleted on Sept 1, 2019 18:40:56 GMT
I just want to be able to remotely operate the single lever Morse system. It seems a simpler solution to cables bearing in mind I do not want to disturb the existing arrangement.
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Post by Deleted on Sept 1, 2019 18:42:48 GMT
Thats you that is eta 'quoting' faffer was an error it seems I can't undo...
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Post by Mr Stabby on Sept 1, 2019 21:25:03 GMT
Mills no 5 hand grenade. Very nice.
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Post by Jim on Sept 2, 2019 6:23:27 GMT
I would like to put an internal helm on my inspection lunch. Are there any obvious flaws to this idea which I have not accounted for ? Sandwiches don't float. That's the main sticking point before you start.
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Post by bodger on Sept 2, 2019 7:16:16 GMT
as you know, my 20ft 'lectric launch has 2 pieces of string attached to foot stirrups for the steering and a long plastic tube fitted onto the twist-grip throttle for speed and gear control.
the KISS principle applies.
seriously - traditionally ships and boats have always used long chains or wire ropes to operate the helm from the steering position, until morse and then remote controls were invented.
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Post by Deleted on Sept 2, 2019 7:25:48 GMT
The linear actuator is actually a lot simpler than running cables and pulleys around.
For the steering I think hydraulic is going to be the best solution available as it is easy enough to put a bypass circuit in so the tiller can be used without disconnecting the ram. Its a 15 ton steel boat so there is some load on the rudder at times.
I think using electric for the rudder is going to be too tricky to get used to without advanced circuitry.
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Post by Telemachus on Sept 2, 2019 16:00:15 GMT
The linear actuator is actually a lot simpler than running cables and pulleys around. For the steering I think hydraulic is going to be the best solution available as it is easy enough to put a bypass circuit in so the tiller can be used without disconnecting the ram. Its a 15 ton steel boat so there is some load on the rudder at times. I think using electric for the rudder is going to be too tricky to get used to without advanced circuitry. I’ve had vague thoughts about remote engine/gear control for our boat. Every time I single hand through locks (which is rare) I think I should fit a remote system. But then I spend the next long period with me and Jeff doing locks so never get round to it. But I think the way I would do it is to fit a servo or linear actuator directly to the engine and gearbox (having disconnected the existing morse cable), fit position sensors to the existing throttle and gear quadrants, such that even in normal operation it was “fly by wire”. Then just have a switch to select where the position info was to come from - either the existing morse lever on the boat, or the remote in my pocket lock-side. One of the reasons for doing this is that our Morse lever can’t just be pushed forwards or backwards out of neutral, it has to be lifted slightly out of a gate too.
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Post by Deleted on Sept 2, 2019 17:08:39 GMT
The morse control on that boat is operable freely through full astern and full ahead.
That could be quite hazardous as a design in terms of ropes getting caught up but it does make linear actuator control quite straightforward.
The actuator itself has limit switches so as long as it was positioned appropriately it would not be able to break anything.
I really like the idea of a full follow up stick steering mechanism for the rudder as well but that would involve more complex electronics and feedback circuits which are beyond my simple brain.
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