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Liked Wiring Design for Model Boats 4 months ago
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Recent Posts
📝 Free Christmas Prize Draw!
1 year ago by 🇬🇧 Hillro (
Lieutenant)
Lieutenant)✧ 87 Views · 8 Likes
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Dear Stephen
Thanks for this very enjoyable quiz.
I certainly learnt a lot and now realise I am not very knowledgeable on nautical matters.
Thanks for this very enjoyable quiz.
I certainly learnt a lot and now realise I am not very knowledgeable on nautical matters.
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RNinMunich
MouldBuilder
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📝 Free Christmas Prize Draw!
1 year ago by 🇬🇧 Hillro ( Lieutenant)
Lieutenant)✧ 109 Views · 3 Likes
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Answer is debatable,
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📝 Old model ship can anyone help
2 years ago by 🇬🇧 Hillro ( Lieutenant)
Lieutenant)✧ 48 Views · 0 Likes
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Try posting on FB ships of scale site.
This site specialises in ships of this type.
This site specialises in ships of this type.
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📝 SWEDISH CB90 Assault Craft
2 years ago by 🇬🇧 Hillro ( Lieutenant)
Lieutenant)✧ 44 Views · 1 Like
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Hi Rowan
Very impressed in your fabrication.
That must have taken some time to work this out.
I looked at a similar arrangement but because of the two drives I was pushed for space.
So I compromised by diverting the jet under the boat. To be honest they are hardly used.
I will get back to you on the boat dimensions.
The design was a model boat mag, however it used props rather than jets.
The boat performs well,
I had a few problems with leaks around the drive, also had a problem with one drive , internal prop moved within the assembly resulting in loss of power.
You also have to ensure you ballast the boat to ensure the jet are under water or they will air lock.
The motors do heat up, so running time is limited.
I found out later that the motors can be water cooled using the water jet that comes out of the top of the jet.
I am not sure of the purpose of this jet maybe somebody in the group can enlighten us.
I note jet skis have this jet as well.
The jet units themselves are quite flimsy
and in my opinion not very well designed for fitting in the stern of a boat.
Robert
Very impressed in your fabrication.
That must have taken some time to work this out.
I looked at a similar arrangement but because of the two drives I was pushed for space.
So I compromised by diverting the jet under the boat. To be honest they are hardly used.
I will get back to you on the boat dimensions.
The design was a model boat mag, however it used props rather than jets.
The boat performs well,
I had a few problems with leaks around the drive, also had a problem with one drive , internal prop moved within the assembly resulting in loss of power.
You also have to ensure you ballast the boat to ensure the jet are under water or they will air lock.
The motors do heat up, so running time is limited.
I found out later that the motors can be water cooled using the water jet that comes out of the top of the jet.
I am not sure of the purpose of this jet maybe somebody in the group can enlighten us.
I note jet skis have this jet as well.
The jet units themselves are quite flimsy
and in my opinion not very well designed for fitting in the stern of a boat.
Robert
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stevedownunder
📝 SWEDISH CB90 Assault Craft
2 years ago by 🇬🇧 Hillro ( Lieutenant)
Lieutenant)✧ 50 Views · 2 Likes
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Hi, is this the kind of drive you are enquiring about.
I bought the 32mm jet drive on wish.
This did not have the reversing buckets.
I tried to find the drives with reversing buckets but was unsuccessful.
I made the buckets from brass sheet.
The buckets are weighted so that they drop by gravity and are held up by the servo via nylon cords.
When held up the buckets are clear of the jets
Hope this helps.
I bought the 32mm jet drive on wish.
This did not have the reversing buckets.
I tried to find the drives with reversing buckets but was unsuccessful.
I made the buckets from brass sheet.
The buckets are weighted so that they drop by gravity and are held up by the servo via nylon cords.
When held up the buckets are clear of the jets
Hope this helps.
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jbkiwi
stevedownunder
📝 Wiring led
2 years ago by 🇬🇧 Hillro ( Lieutenant)
Lieutenant)✧ 51 Views · 0 Likes
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Hi
Wow, you have a lot of battery options.
What I would do is decide on your battery option.
Then fit a motor and esc to suit this.
Then arrange the leds to suit that.
Can you detail what you have with regards to the boat. Are you building it or is it already built?
Regards
Robert
Wow, you have a lot of battery options.
What I would do is decide on your battery option.
Then fit a motor and esc to suit this.
Then arrange the leds to suit that.
Can you detail what you have with regards to the boat. Are you building it or is it already built?
Regards
Robert
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📝 Wiring led
2 years ago by 🇬🇧 Hillro ( Lieutenant)
Lieutenant)✧ 51 Views · 0 Likes
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HI Here is a link to an article on led wiring.
Https://thenrg.org/resources/Documents/articles/LEDLightingF...
Https://thenrg.org/resources/Documents/articles/LEDLightingF...
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📝 Wiring led
2 years ago by 🇬🇧 Hillro ( Lieutenant)
Lieutenant)✧ 51 Views · 0 Likes
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Hi, I am a bit confused. On your original inquiry you mentioned a 12volt battery.
Now six volts then 7.2volts.
You will need a different dropping resistor for each voltage.
A 12volt led may work on 7.2volt but would be dim.
You mention flickering when the motor is running. I have not found this to be an issue are the leds power should be directly to the battery via a fuse so any voltage changes on the battery should be minimal.
All I can suggest is that you have to experiment a bit.
Another solution it to use wheat grain bulbs to the correct voltage. This removes the need for resistors.
Regards
Robert
Now six volts then 7.2volts.
You will need a different dropping resistor for each voltage.
A 12volt led may work on 7.2volt but would be dim.
You mention flickering when the motor is running. I have not found this to be an issue are the leds power should be directly to the battery via a fuse so any voltage changes on the battery should be minimal.
All I can suggest is that you have to experiment a bit.
Another solution it to use wheat grain bulbs to the correct voltage. This removes the need for resistors.
Regards
Robert
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📝 Wiring led
2 years ago by 🇬🇧 Hillro ( Lieutenant)
Lieutenant)✧ 51 Views · 0 Likes
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Good morning
Once you ideas come together, just make a sketch of the circuits you intend to use. Photograph them then post them here. I am sure lots of members would add their assistance.
Robert
Once you ideas come together, just make a sketch of the circuits you intend to use. Photograph them then post them here. I am sure lots of members would add their assistance.
Robert
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📝 Wiring led
2 years ago by 🇬🇧 Hillro ( Lieutenant)
Lieutenant)✧ 56 Views · 2 Likes
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Hi,
The first thing to understand is that different colours require different voltages eg white =3 volts red = 1.5 volts.
So using a 12 volts dc battery you will need to included a resistor to drop the voltage to suit the led being used.
There is a lot of info on the Internet on how to calculate resistance value.
With reference in how to wire them, just wire them in parallel in groups that you want to switch. Supplied from the battery via a fuse.
With reference to general lighting on the boat you could wire 4 white leds in series , this would remove the need for resistors. This works by dropping 3 volts across each leds.
Note leds are polarity sensitive so make sure they are connected correctly.
There is lots of info on the Internet,
Some model boat shops sites have the info you require.
Get back to me if you need more assistance
Robert.
The first thing to understand is that different colours require different voltages eg white =3 volts red = 1.5 volts.
So using a 12 volts dc battery you will need to included a resistor to drop the voltage to suit the led being used.
There is a lot of info on the Internet on how to calculate resistance value.
With reference in how to wire them, just wire them in parallel in groups that you want to switch. Supplied from the battery via a fuse.
With reference to general lighting on the boat you could wire 4 white leds in series , this would remove the need for resistors. This works by dropping 3 volts across each leds.
Note leds are polarity sensitive so make sure they are connected correctly.
There is lots of info on the Internet,
Some model boat shops sites have the info you require.
Get back to me if you need more assistance
Robert.
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Colin H
💬 Re: Making a Start, Deck Planking.
2 years ago by 🇬🇧 Hillro ( Lieutenant)
Lieutenant)✧ 205 Views · 1 Like
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Thanks for your post very interesting.
I was surprised that you have not fitted a plywood sub deck. This helps to keep the boat watertight and allows for inaccuracies in the planking.
As you said in your post there are loads of ways to plank a boat.
I was surprised that you have not fitted a plywood sub deck. This helps to keep the boat watertight and allows for inaccuracies in the planking.
As you said in your post there are loads of ways to plank a boat.
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📝 Engine Room access
2 years ago by 🇬🇧 Hillro ( Lieutenant)
Lieutenant)✧ 37 Views · 0 Likes
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Decided to make the boiler room access so I could see how to make an removal access into the Hull.
This was made from scrap bits of birch ply.
The larger one was made first, but having a look at pics of the ship, online I could see it was the wrong scale.
So I made another at a smaller scale.
Happy with it now have to have a look for suitable pipe to make a funnel.
This was made from scrap bits of birch ply.
The larger one was made first, but having a look at pics of the ship, online I could see it was the wrong scale.
So I made another at a smaller scale.
Happy with it now have to have a look for suitable pipe to make a funnel.
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📝 Self healing cutting mats/ pin pusher
2 years ago by 🇬🇧 Hillro ( Lieutenant)
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Try Amazon or ebay
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📝 Steering, etc
2 years ago by 🇬🇧 Hillro ( Lieutenant)
Lieutenant)✧ 62 Views · 3 Likes
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After a few different ideas for how to fit the steering servo, settled on the method in the photo. Also coated the inside of the Hull with fibre glass resin.
This helps with waterproofing and also strengths the Hull.
I am now going to glue in the lower Hull some lead ballast using sheet lead.
I intend to use sails to drive the boat but I am fitting a motor as a backup. I am using a belt drive, but may upgrade to a toothed belt drive.
I am doing this to keep the motor well into the stern thus keeping the main Hull clear for the sail control.
I have found info in the model boats mag how to do this using servos fitted with sail arms. Need to do a bit more research and head scratching how and where to fit the servos.
This helps with waterproofing and also strengths the Hull.
I am now going to glue in the lower Hull some lead ballast using sheet lead.
I intend to use sails to drive the boat but I am fitting a motor as a backup. I am using a belt drive, but may upgrade to a toothed belt drive.
I am doing this to keep the motor well into the stern thus keeping the main Hull clear for the sail control.
I have found info in the model boats mag how to do this using servos fitted with sail arms. Need to do a bit more research and head scratching how and where to fit the servos.
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📝 Bulwark Construction
2 years ago by 🇬🇧 Hillro ( Lieutenant)
Lieutenant)✧ 67 Views · 5 Likes
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I fitted a board in the bottom , inside of the bulwarks, inside which will be mounted the deck. The bulwark inside was painted white and on it glued prepainted black uprights. I then sanded the bulwark sides down to the top of the uprights. Mahogany hand rail is pinned and glued to the top of the bulwark. A shaped handrail for the stern.
Now need to tidy up with a bit of sanding, etc.
Now need to tidy up with a bit of sanding, etc.
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📝 motor to prop shaft connection.
2 years ago by 🇬🇧 Hillro ( Lieutenant)
Lieutenant)✧ 69 Views · 0 Likes
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Hi, if you are confident that true alignment has been achieved, a solid connection would be OK.
However I would suggest some type of coupling to compensate for any misalignment.
Vibration and heat generation from friction are usually clues on misalignment.
Best of luck.
However I would suggest some type of coupling to compensate for any misalignment.
Vibration and heat generation from friction are usually clues on misalignment.
Best of luck.
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📝 Hull progress
2 years ago by 🇬🇧 Hillro ( Lieutenant)
Lieutenant)✧ 73 Views · 6 Likes · 1 Comment
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Having looked at photos of the ship , I realised that the bulwarks need to be higher. So I raised this by one plank.
This was just glued to the top of the bulwark using clamps to hold in place.
Made and fitted the bowsprit, again looking at photos.
The bow on the ship is reinforced using steel plates , thinking of using brass sheet and round head pins to simulate this.
The prop and rudder has been fitted. This required me purchasing a long 6mm twist drill.
I greased the shaft before fitting it as access is not possible after fitting the rudder assembly.
Now looking into the motor. I found a couple of meccano pulleys to make a belt drive. Using these I can mount it closer to the stern allowing more room in the Hull for the sail control servos.
I now intend to paint the inside using epoxy resin and secure some ballast lead sheet.
This was just glued to the top of the bulwark using clamps to hold in place.
Made and fitted the bowsprit, again looking at photos.
The bow on the ship is reinforced using steel plates , thinking of using brass sheet and round head pins to simulate this.
The prop and rudder has been fitted. This required me purchasing a long 6mm twist drill.
I greased the shaft before fitting it as access is not possible after fitting the rudder assembly.
Now looking into the motor. I found a couple of meccano pulleys to make a belt drive. Using these I can mount it closer to the stern allowing more room in the Hull for the sail control servos.
I now intend to paint the inside using epoxy resin and secure some ballast lead sheet.
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📝 Modified Stern, etc
2 years ago by 🇬🇧 Hillro ( Lieutenant)
Lieutenant)✧ 84 Views · 7 Likes · 2 Comments
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I cut off the stern at the last frame then carved another one out of lime wood, this time allowing room for the rudder arms ,etc.
Filled in between the last few stern frames with car filler. This is to beef up the stern to allow the prop shaft hole without weakening the stern.
To address the fitting of the deck I cut out the frames above the deck and fitting support for the deck edges.
Fitted supports for the forward deck.
I have researched what I need to fit under the deck.
Motor with associated esc.
Steering servo.
Two sail control servos fitted with arms.
Maybe a drum servo.
And a battery.
Hopefully being a sail driven model I will provide fixings for a removable drop keel.
The major issue for me to sort out is access to the Hull when the deck is on and to remain watertight.
Any ideas welcome.
Filled in between the last few stern frames with car filler. This is to beef up the stern to allow the prop shaft hole without weakening the stern.
To address the fitting of the deck I cut out the frames above the deck and fitting support for the deck edges.
Fitted supports for the forward deck.
I have researched what I need to fit under the deck.
Motor with associated esc.
Steering servo.
Two sail control servos fitted with arms.
Maybe a drum servo.
And a battery.
Hopefully being a sail driven model I will provide fixings for a removable drop keel.
The major issue for me to sort out is access to the Hull when the deck is on and to remain watertight.
Any ideas welcome.
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📝 Hull/ planking wood types. Beginner
2 years ago by 🇬🇧 Hillro ( Lieutenant)
Lieutenant)✧ 55 Views · 2 Likes
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Hi, good advise has already been given however you have to fix your frames to a baseboard. This is to keep them in line and correctly spaced.
There is a lot of examples on this site.
I have included some pics of my current project.
Do you have any info on what you are intending to build?
There is a lot of examples on this site.
I have included some pics of my current project.
Do you have any info on what you are intending to build?
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📝 Freeing the Hull from the base board
2 years ago by 🇬🇧 Hillro ( Lieutenant)
Lieutenant)✧ 106 Views · 5 Likes · 1 Comment
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Using a Dremel fitted with a saw blade cut though the supports.
The Hull interior can now be examined .
I have noticed that the stern is not quite right. To get the rudder mounted in the correct location this needs to be modified. A bit of measuring and head scratching required.
The Hull interior can now be examined .
I have noticed that the stern is not quite right. To get the rudder mounted in the correct location this needs to be modified. A bit of measuring and head scratching required.
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📝 Engine high pitched hum
2 years ago by 🇬🇧 Hillro ( Lieutenant)
Lieutenant)✧ 70 Views · 0 Likes
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📝 Planking progress
2 years ago by 🇬🇧 Hillro ( Lieutenant)
Lieutenant)✧ 112 Views · 7 Likes
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After a quick sand of the Hull to remove the obvious high point coated it with car filler. Once set, rubbed down to a smooth finish. Had to go over various low points with additional filler.
When reasonable happy give the Hull a coat of undercoat to highlight the small imperfections that can be rectified.
This sanding process is very dusty and some covid face masks came in very handy.🤣
When reasonable happy give the Hull a coat of undercoat to highlight the small imperfections that can be rectified.
This sanding process is very dusty and some covid face masks came in very handy.🤣
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📝 Engine high pitched hum
2 years ago by 🇬🇧 Hillro ( Lieutenant)
Lieutenant)✧ 80 Views · 3 Likes
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You have not said what manufacturer is the esc. It sound to me that you need to tune either the esc or the zero point on your transmitter. The noise indicate that the esc is not quite at zero speed.
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💬 Re: Planking progress
2 years ago by 🇬🇧 Hillro ( Lieutenant)
Lieutenant)✧ 118 Views · 1 Like
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I am going to fit a drive motor, can't afford a steam plant.
It's interesting that the ship had a method of lifting the prop on board to reduce drag while under sail or in the ice.
I still have to find out how this is possible. Not that I intend to do this on the model.
I believe the rudder could be lifted on board as well.
Sails were used because Discovery could not carry enough coal, and there was not any refuelling provisions.
It's interesting that the ship had a method of lifting the prop on board to reduce drag while under sail or in the ice.
I still have to find out how this is possible. Not that I intend to do this on the model.
I believe the rudder could be lifted on board as well.
Sails were used because Discovery could not carry enough coal, and there was not any refuelling provisions.
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pressonreguardless
📝 Sail control of RRS Discovery . Help required
2 years ago by 🇬🇧 Hillro ( Lieutenant)
Lieutenant)✧ 32 Views · 0 Likes
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Brilliant, I have found an article in model boat magazine which shows a way of doing it. But it has raised more questions. Look forward to his advice and recommendations.
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📝 Planking progress
2 years ago by 🇬🇧 Hillro ( Lieutenant)
Lieutenant)✧ 122 Views · 7 Likes · 4 Comments
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I am a great believer of using salvaged wood where possible.
I started using mahogany planks but found it too stiff without steaming or soaking. So I changed to parana pine (an staircase handrail) this bent more easily.
I was not too worried about the finish as I intend to fill with car body filler and maybe a glass top coat.
I found some errors with a couple of frames which needed packing strips.
The bow and stern were blocked out with lime wood blocks.
The Hull needs tidied up in a few areas.
Work in progress.
I started using mahogany planks but found it too stiff without steaming or soaking. So I changed to parana pine (an staircase handrail) this bent more easily.
I was not too worried about the finish as I intend to fill with car body filler and maybe a glass top coat.
I found some errors with a couple of frames which needed packing strips.
The bow and stern were blocked out with lime wood blocks.
The Hull needs tidied up in a few areas.
Work in progress.
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📝 Sail control of RRS Discovery . Help required
2 years ago by 🇬🇧 Hillro ( Lieutenant)
Lieutenant)✧ 40 Views · 0 Likes
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Hi, it's the RRS discovery . Based in Dundee.
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📝 RRS Discovery
2 years ago by 🇬🇧 Hillro ( Lieutenant)
Lieutenant)✧ 133 Views · 10 Likes · 3 Comments
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Started a new project, a scratch build of RRS Discovery.
The actual ship is in Dundee which is not far from me, so getting details from the ship is a bonus.
I located drawings for a steam whaler which the ship was derived from.
I decided to build it upside down. The frame profiles were cut out of 4mm birch ply using enlarged prints of the profiles, stuck to the ply and cut out using a scroll saw. They were then screwed to the base board.
Next step is start the Hull planking.
The actual ship is in Dundee which is not far from me, so getting details from the ship is a bonus.
I located drawings for a steam whaler which the ship was derived from.
I decided to build it upside down. The frame profiles were cut out of 4mm birch ply using enlarged prints of the profiles, stuck to the ply and cut out using a scroll saw. They were then screwed to the base board.
Next step is start the Hull planking.
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📝 Sail control of RRS Discovery . Help required
2 years ago by 🇬🇧 Hillro ( Lieutenant)
Lieutenant)✧ 67 Views · 2 Likes
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Hi All
Is there any build blogs that show how to control a square rigged boat using radio control.
I have plans of a whaling ship which is very similar rig to the RRS discovery.
Luckily I can visit the ship in Dundee to get details of the rigging, etc.
I have a book on controlling this type of rigging but it seems very complicated.
Any help and advice welcome.
Thanks in advance.
Robert.
Is there any build blogs that show how to control a square rigged boat using radio control.
I have plans of a whaling ship which is very similar rig to the RRS discovery.
Luckily I can visit the ship in Dundee to get details of the rigging, etc.
I have a book on controlling this type of rigging but it seems very complicated.
Any help and advice welcome.
Thanks in advance.
Robert.
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