UK-Cherub Forum

Cherub Chat => Calendar Events => Topic started by: paul_croote on October 14, 2013, 08:05:48 PM

Title: Sticky weekend 2013
Post by: paul_croote on October 14, 2013, 08:05:48 PM
We are planning to hold the sticky weekend on the 31st of November and 1st of December. For anyone who hasn't attended before, it's a great opportunity to gain the knowledge and skills required for repairing and building boats, foils and spars etc.. Anyone planning on bringing projects / boats please post details so I can prepare.

Saturday evening social /meal will be in the local curry house

Accommodation, if you are feeling brave and have a good sleeping bag you are welcome to stay in the workshop or the local Travelodge is only about a mile away. There are also loads of local B&B's

The workshop address is - Unit B1, Oldmixon Crescent, Weston-s-Mare, North Somerset. BS24 9AY.
Title: Re: Sticky weekend 2013
Post by: andy_peters on October 14, 2013, 09:41:57 PM
Paul,

We would like to attend our very first SW.  I'd like to do 3 things, 2 quite short and one a bit cheeky:

1.  Convert our twist grip tillers to fixed.  Quite simple is to wrap some carbon around the slot a bit more tricky is drilling the new hole in the right place for which you ideally need a long drill bit to line up the holes through the gantry.  A bit I don't have.

2. To fix a couple of small chips in the hull but more importantly a small crack in the outer skin

Following that if possible I would like to respray the hull as Rolands garage job was good but it is 5 seasons old now.  If the hull was rubbed down and prepped prior to the SW would this be possible?

Andy
Title: Re: Sticky weekend 2013
Post by: paul_croote on October 15, 2013, 12:15:53 AM
Yes no problem, we can work out a plan of attack at the inlands

Paul,

We would like to attend our very first SW.  I'd like to do 3 things, 2 quite short and one a bit cheeky:

1.  Convert our twist grip tillers to fixed.  Quite simple is to wrap some carbon around the slot a bit more tricky is drilling the new hole in the right place for which you ideally need a long drill bit to line up the holes through the gantry.  A bit I don't have.

2. To fix a couple of small chips in the hull but more importantly a small crack in the outer skin

Following that if possible I would like to respray the hull as Rolands garage job was good but it is 5 seasons old now.  If the hull was rubbed down and prepped prior to the SW would this be possible?

Andy
Title: Re: Sticky weekend 2013
Post by: phil_kirk on October 15, 2013, 03:01:21 PM
For item 2 do your current gantry pivot bolts just go straight through the carbon plate of the gantry or have you bonded in short lengths of carbon tube. These can be drilled seperately and aligned with an 8mm sraight rod when they are bonded in.  Simples!
Title: Re: Sticky weekend 2013
Post by: simon_jones on October 15, 2013, 06:48:55 PM
Just a question Paul, Would it be possible to spray two boats at a sticky weekend? If not I'll hand varnish the woodie.
Title: Re: Sticky weekend 2013
Post by: Torchy on October 15, 2013, 10:35:18 PM
Thanks for hosting us again Paul.

If I can get the mould from Roland(?) I would like to make the first of two T-foils of the Ellway kind.

Midlands area now has vacuum pumps but could do with being guided through our first baby steps.

I think Sam and I will be up for staying in the workshop on Saturday night
Title: Re: Sticky weekend 2013
Post by: paul_croote on October 15, 2013, 11:19:28 PM
The lacquer used on cars is like the paint and will cure hard enough to transport after a night in our  heated spray booth but I don't think it is flexible enough for wood (I have used it on carbon masts in the past but it flaked off after a few months). The internal lacquers we use all the time are very quick drying but are not uv stable. I had used international paints two part varnish on masts, wood and Marmite with good results but it takes about 3 days to harden. We can give it a go but will need to find a way of holding it to the trailer without putting pressure on a newly varnished areas, or pro grip over them.

Just a question Paul, Would it be possible to spray two boats at a sticky weekend? If not I'll hand varnish the woodie.
Title: Re: Sticky weekend 2013
Post by: roland_trim on October 16, 2013, 08:59:23 AM
Two T-foils of the Ellway kind.

Need to be clear about which foil types:

- An update on our tooling will be available when I get some time to find out what has happened. Effectively there are some male plugs in production and it may be that we make some more molds from these for you to take away on the sticky weekend.

- Then there is what comes from Ben's machine.

 - As a third option there is an additional possibility of the Ellway foil molds becoming available, but this is contingent on fixing a price and a talk with Kevin about royalties!
Title: Re: Sticky weekend 2013
Post by: Torchy on October 16, 2013, 09:52:30 AM
Thanks R...will be guided by you on what's best.

Finalising plans at a Midlands pow wow tomorrow but either way we start with standard T-foils to make first generation foils for Loco.

Ben's rig looks very promising.
Title: Re: Sticky weekend 2013
Post by: BenR on October 16, 2013, 10:49:59 AM
While I am excited about my "rig". It is nowhere near ready and I am about to run into a lack of weekends to finish it in the near future. When it is up and going I will post an update but until then I wouldn't hedge any bets on it.
Title: Re: Sticky weekend 2013
Post by: Clive Everest on October 16, 2013, 12:00:49 PM
I am looking at making foils by 3D printing a blank and then laminating over it.

The blank need not be solid. It can be cellular or hex honeycomb.
Its density can vary across the cord and span.

When making masts etc on a male mandrel the laminate wall thickness is consistent and predictable.

I do not see any significant loss of accuracy associated with making it on a male blank rather than in female tooling.
It should be a lot quicker to laminate and solves the problem of joining 2 parts.

Clive


Title: Re: Sticky weekend 2013
Post by: paul_croote on October 16, 2013, 01:22:56 PM


I am looking at making foils by 3D printing a blank and then laminating over it.

The blank need not be solid. It can be cellular or hex honeycomb.
Its density can vary across the cord and span.

When making masts etc on a male mandrel the laminate wall thickness is consistent and predictable.

I do not see any significant loss of accuracy associated with making it on a male blank rather than in female tooling.
It should be a lot quicker to laminate and solves the problem of joining 2 parts.

Clive




Plywood core for my next foil
Title: Re: Sticky weekend 2013
Post by: roland_trim on October 16, 2013, 02:34:48 PM
It should be a lot quicker to laminate and solves the problem of joining 2 parts.

The crucial bit I struggle with is where the lifting foil meets the steering foil. For me this is the only driver behind female tooling. There is just as much finishing and fairing needed in both processes.

Female tooling for blades is a right royal PITA. More experimentation is needed to approach anything like as light/strong/stiff as a core.


I am looking at making foils by 3D printing a blank and then laminating over it.
The blank need not be solid. It can be cellular or hex honeycomb. Its density can vary across the cord and span.
We looked at patenting this process a few years back. The worldwide rights are held by an American chap who put his marker on it in the mid 90's!
Title: Re: Sticky weekend 2013
Post by: Clive Everest on October 16, 2013, 03:49:40 PM
Do you have details of the Patent?

As I understand it most patents don't apply to non commercial use.
I can use a patented idea on my boat but cannot sell it to anyone.
Title: Re: Sticky weekend 2013
Post by: roland_trim on October 16, 2013, 04:22:22 PM
As I understand it most patents don't apply to non commercial use.
I can use a patented idea on my boat but cannot sell it to anyone.

Exactly. Home use is never a problem :-)
Title: Re: Sticky weekend 2013
Post by: ade white on October 16, 2013, 08:22:46 PM
my experience of patents, especially with our kind of dinghy sailing, is forget it!  it aint worth the paper its written on. 'The only way to loose a small fortune is to start off with a big one!
Title: Re: Sticky weekend 2013
Post by: simon_jones on October 20, 2013, 10:23:48 AM
Paul we may now bring Eleanor as we believe we have a small leak in the bow area which could do with being looked at.
Title: Re: Sticky weekend 2013
Post by: Torchy on October 23, 2013, 01:17:50 PM


Plywood core for my next foil

Paul, I am vv interested in the plywood core idea.

At the sticky weekend I would like to make one and laminate it with the help of Tom and Ade after the Sticky.

Also, since there don't appear to be any spare main foils knocking around to purchase, I am looking at the class female moulds that Roland is bringing to the Inlands to see if there is one suitable to make a foil. This would then either become the new foil (with a lifting foil) or the foil that keeps Loco sailing through the foil assist/low flying development.

If it is possible to make the foil at the Sticky that would be good.
Title: Re: Sticky weekend 2013
Post by: stom on October 27, 2013, 06:02:33 PM
Paul, any chance there will be room for us to bring Norfolk down to the sticky weekend?  I'd like to try and fit the mast stump if possible..
Title: Re: Sticky weekend 2013
Post by: paul_croote on October 28, 2013, 09:26:47 PM
Paul, any chance there will be room for us to bring Norfolk down to the sticky weekend?  I'd like to try and fit the mast stump if possible..

Yes no problem, spoken to Roland who knows more about Norfolk's background. Make sure you bring the mast so we can look at all options.
Title: Re: Sticky weekend 2013
Post by: stom on October 29, 2013, 10:10:33 PM
Paul, any chance there will be room for us to bring Norfolk down to the sticky weekend?  I'd like to try and fit the mast stump if possible..

Yes no problem, spoken to Roland who knows more about Norfolk's background. Make sure you bring the mast so we can look at all options.

Thanks!  I'm quite intrigued by Rolands idea of extending the mast foot in the "deck stepped mast" thread.  It could be a way to keep Norfolks hull closer to its original design intent.
Title: Re: Sticky weekend 2013
Post by: Andrew Whapshott on November 09, 2013, 09:26:37 PM
Thanks for hosting again Paul;

I am quite keen to have a go at making some glass tiller extensions
Title: Re: Sticky weekend 2013
Post by: paul_croote on November 09, 2013, 10:14:39 PM
Ok, you will need some shink wrap tape, have you got any?
A lot cherubers are using carp landing net poles. Marmines cost £21 and are 1 1/2 years old and still going strong!

Thanks for hosting again Paul;

I am quite keen to have a go at making some glass tiller extensions
Title: Re: Sticky weekend 2013
Post by: Andrew Whapshott on November 14, 2013, 11:26:57 PM
I haven't but I'll see what I can find, Its just an idea to give me something to think about, I'm more coming for a break and to be nosy :-)

(And just incase I break one..)
Title: Re: Sticky weekend 2013
Post by: Torchy on November 15, 2013, 10:11:29 AM
Hi Paul,

yhm

I've sent you an outline of what I would like to achieve at the sticky if I can get to it. Keeping it quite low key due to current circumstances,

Nigel
Title: Re: Sticky weekend 2013
Post by: BenR on November 15, 2013, 10:24:19 AM
Andy, Atums are similarly carp landing poles and cost £4 each. I bought plenty so I had spares, which turns out to be good as I have broken a few. At that price, I suppose I can't expect it to hold my weight. Unfortunately most landing poles are 6ft so might be too small for your 9er.
Title: Re: Sticky weekend 2013
Post by: roland_trim on November 15, 2013, 10:54:41 AM
Andy, Have you thought of joining two carp poles?
Title: Re: Sticky weekend 2013
Post by: phil_kirk on November 15, 2013, 08:44:16 PM
Glass tubes may end up being a bit flexible over that length.  Joining tubes is quite easy. You just need to sleave two sections with some plastic tube of the right diameter and lay weave uni and weave layers over the join.   To do this in one hit the two sections need to be supported in a straight line with space to work around the join.  I use Will Lee's idea of taping the sections to a ladder with the join between two rungs.
This is what i have done for my tiller extension repairs.  i have now learnt how to make them stronger so hopefully wont have to do so many repairs. 
Title: Re: Sticky weekend 2013
Post by: JP233 on November 18, 2013, 11:23:56 PM
Permission to attend!?
I have plans on making a tacking GPS bracket, would like some 2nd opinions, or if im really lucky to start it there.

Either way, keen to attend, happy to help.

Thanks
Jamie
Title: Re: Sticky weekend 2013
Post by: roland_trim on November 19, 2013, 08:37:11 AM
Weekend is an open house. Good to know numbers though, so thanks for the warning.

Paul kindly donates the use of his workshop, the only request is that those who attend are at least Associate members (You can join on the day for £10, £20 for a full student, £30 for a full membership).

Logistics:
We can pick people up from Weston Super Mare (all day) or Bristol/Bath stations (morning/evening only).
There is free beds/floor space at Team Trim's, although currently the house has no internal doors! This is a drive from Paul's with car sharing, BS31 for your sat nav! Please PM me to attempt to book a bed/airbed/space.
Alternatively there is a Premier Inn near WSM.
Title: Re: Sticky weekend 2013
Post by: roland_trim on November 25, 2013, 10:32:46 PM
Any chance of a rough head count - curry house has asked for a deposit...
Title: Re: Sticky weekend 2013
Post by: andy_peters on November 26, 2013, 09:15:52 AM
2= Andy & Jill. 

Have you/Paul been able to buy the paint - or do I just go and do that on the am?
Title: Re: Sticky weekend 2013
Post by: roland_trim on November 26, 2013, 09:52:22 AM
Sorry for the poor communication on my part, heading via the paint man on Wednesday.
Title: Re: Sticky weekend 2013
Post by: Torchy on November 26, 2013, 01:48:13 PM
Sam and I are in...unless there's a change between now and the weekend.

Floor space chez Trim please...will text you if that means Fri night too
Title: Re: Sticky weekend 2013
Post by: roland_trim on November 26, 2013, 01:56:03 PM
So in summary:

Gill P
Andy P
Polly
Roland
Hayley
Jamie*
Nigel*
Sam*
Croote
Andy W*
Tom (trifle)*

Tim U. will hopefully be popping in, but not a curry eater

* denotes accomodation requested
Of course more are more than welcome...
Title: Re: Sticky weekend 2013
Post by: Torchy on December 01, 2013, 08:29:41 PM
Awesome weekend guys!

Loco has a softwood core for the new daggerboard and a very natty early t-foil made by Will Lee to go on it as a lifting foil about a foot below the hull...crash, bang wallop here we come....

Thanks to Paul Croote for workshop and woodworking virtuosity and Roland as ever for his enthusiasm, helpfulness and skill.

Sam is pleased as punch to come home with an RC helicopter, curtesy Mr trim. In fact it was a weekend of helicopters - watch out for the video
Title: Re: Sticky weekend 2013
Post by: stom on December 02, 2013, 10:32:05 PM
Indeed thanks to Paul for hosting and Roland for boundless enthusiasm!  Also many thanks to the various pairs of hands that helped with the mast extension & squidgy boom!  I cant wait to get the boat on the water with the new rig!
Title: Re: Sticky weekend 2013
Post by: andy_peters on December 03, 2013, 09:31:01 PM
Thirded - and to those who lifted our trailer and discovered its hidden weakness
Title: Re: Sticky weekend 2013
Post by: Torchy on December 05, 2013, 05:28:43 PM
Andy, did the paint job get sorted?
Title: Re: Sticky weekend 2013
Post by: andy_peters on December 06, 2013, 01:42:31 PM
Yes it did thanks to some sanding by Jill and I and further spraying by Roland and Paul.  Even the masking worked perfectly so we have a nice blood red boat now.  The trailer is fixed as well - good job we discovered that or it could have got nasty at some point.
Title: Re: Sticky weekend 2013
Post by: Torchy on December 06, 2013, 05:14:55 PM
Excellent