A hard nose

[Sonar]

Has anybody on the forum made there own hard nose for their rib ?.

How did you go about starting the moulding plug.

[bedajim]

Originally Posted by Sonar

Has anybody on the forum made there own hard nose for their rib ?.

How did you go about starting the moulding plug.

why

[mdt]

I have seen one and used a rib with one. It was made by covering the nose with tin foil taped to the tubes and then just lay up fibreglass on it.

Once hard you can deflate the tubes and then slide the “nose cone” off trim to the required size. Job done.

It was used to enable the boat to go bow on to barnacle encrusted sea walls with out ripping the life out of the tubes.

It is not a true hard nose like a Redbay etc but will provide you a degree of protection etc.

[Sonar]

Originally Posted by bedajim

why

Why not ?

[Sonar]

Originally Posted by mdt

I have seen one and used a rib with one. It was made by covering the nose with tin foil taped to the tubes and then just lay up fibreglass on it.

Once hard you can deflate the tubes and then slide the “nose cone” off trim to the required size. Job done.

It was used to enable the boat to go bow on to barnacle encrusted sea walls with out ripping the life out of the tubes.

It is not a true hard nose like a Redbay etc but will provide you a degree of protection etc.

I am thinking I may well make a hard nose using foam and filla for the finish.Just to form the plug for a mould.

I have a bit of time on my hands at the moment and for medical reasons cant go bouncing about in a rib.

However i guess I can still go through the motions of building one.

I have today started to form a hard nose and hope to put up some pictures later this week.

[BruceB]

If its just to run up against encrusted walls etc why not just put fendering over the nose.
I push up against walls and rocks regularly and had heavy duty fendering fitted for this very reason to the whole bow (see pic) , it gets scratched but surely a hard nose won't be just scratched but will be making all sorts of crunching and scraping noises plus will get broken?

[Pete7]

Originally Posted by Sonar

I am thinking I may well make a hard nose using foam and filla for the finish.Just to form the plug for a mould.

Might be worth having a chat with Reiver Boats in Stanley, they did have the moulds the XR24 a hard nosed rib.

Pete

[Sonar]

Originally Posted by Pete7

Might be worth having a chat with Reiver Boats in Stanley, they did have the moulds the XR24 a hard nosed rib.

Pete

Hi Pete thanks for the info.

I thought i would have a go at the plug.
will not cost me to much with a bit of free foam and some plaster.

if it all goes wrong no worries except for getting it to the local tip.
not looking too bad already.

[gtflash]

Originally Posted by Sonar

plaster.

[Sonar]

Originally Posted by gtflash

Yep plaster well overtrowled it go's shiny and smooth so long as it is very dry and polished i thought it might be worth a go..

on the Eastcoast fibreglass website it shows a mould being made out of plaster and wire mesh

thought I would have a go.

For a total cost of £8.00 it's worth a bash.

[Cookee]

Why not use the tube to mould it off - it's the shape you need!

[r mcdonald]

Originally Posted by Cookee

Why not use the tube to mould it off - it's the shape you need!

Like this? Plastic sheet on the tube then fibreglass over the plastic.Except using the front end of the RIB collar.
regards
rpm

[Sonar]

Originally Posted by r mcdonald

Like this? Plastic sheet on the tube then fibreglass over the plastic.Except using the front end of the RIB collar.
regards
rpm

I don't have any tubes for the rib yet so had to take the next option.

[Cookee]

Originally Posted by Sonar

I don't have any tubes for the rib yet so had to take the next option.

In that case I would wait!

[chewy]

Originally Posted by Sonar

I don't have any tubes for the rib yet so had to take the next option.

What RIB is it going on and hpw do you know you'll get the angles and diameter right?

[Sonar]

Started the plug with a rough foam core just as a former and then applied a bonding coat to get again the rough shape in situ in a mould.

plaster finish coat to post.

When dry I was thinking 2 coats of resin and a wet and dry sand down before g7 cutting polish and wax before starting the mould.

[hatt11]

Are you not creating a headache for yourself now having to have tubes made to fit your nose? Surely it would be better to have tubes first and take the dimensions from them? Each to there own and all that!

[willk]

It's a self-imposed Sisyphean Task - give his head peace, he can't go ribbin'

[Sonar]

Originally Posted by hatt11

Are you not creating a headache for yourself now having to have tubes made to fit your nose? Surely it would be better to have tubes first and take the dimensions from them? Each to there own and all that!

I am in contact with the company that will be suppling and fitting the tubes.
They have given me instructions as to their requirements .

So i have taken their advise so far as size of tubes and what they would like in order to fit them.

The plug for the nose has NO holes cut so the tube sockets can be fitted when or if i ever get it completed.

any thing from a 1 mtr radius to a radius of 1.250 .

as for stuff used to form a plug well it is a home build .

The foam used are insulation cavity boards the foam was cut using a kitchen waste bin as the template.

the lip moulding to attach the tubes to the rear of the transom "shock horror" again will be formed using the inside of the bin for a mould.

and the list i dare say will go on and on as home builds do.

However using odd items found around the home to assist in formwork does not mean the boat will be badly made.

The well at the rear for the bilge pump i was thinking moulding the outside of a plastic tupperware container.
The battery box well another moulding from some other item around the house.

[Sonar]

Originally Posted by willk

It's a self-imposed Sisyphean Task - give his head peace, he can't go ribbin'

As you said i guess i will never get to use it but I so far have enjoyed doing what I can on it and have a bit of time to waste.

The mould itself SPLASH is near on finished now .
when it comes to spending real money on the grp and other items A mate is paying for it as it will be his when it's finished.

Great fun.

From Sisyphus < Ancient Greek Σίσυφος (Sisuphos). Sisyphus was a Greek mythological figure who was doomed to endlessly roll a boulder up a hill in Hades.
where there is a will there is a way.