Showing posts with label tiller. Show all posts
Showing posts with label tiller. Show all posts

Saturday, April 23, 2016

A tiller for SEI

Laminating a curved item such as a tiller is one of the more rewarding jobs. A gracefully curved and very strong tiller with the gluelines accentuating the curves can add a nice touch to the boat, and its not hard to do.
Heres "me" making a tiller for SEI.

A tiller for SEI.

Now SEI being a double ender has the rudder a little further away from the skippers hand than is usual in a transom sterned boat so needs a longer tiller than would otherwise be the case.  That’s consideration number one, consideration number two was the shape, then consideration number three was what to make it from.
I didn’t have a suitable piece wide enough to cut the shape from in one piece, and friend Bill Simpson had given me an interesting piece of wood that had come from a big shipping pallet.  Who knows what it is, but its light, tough, is close grained and glued well.  It is not so easy to work with a hand plane, the fibers being long and tough don’t cut so well, but wood like that generally machines well, so I figured that being much too narrow, I’d laminate the tiller.

The tiller slot in the rudder stock ( rudder head in some languages ) being 27 mm wide I sliced up the wood with the sawbench, cutting first to make two 35 mm pieces out of the 70plus wide piece to give me room to plane it down to the 27mm width, then splitting that into 5mm lamells.

I took a piece of scrap ply down to the boat, propped it in place and drew the shape of the tiller thereon.  Reproduced that on the plywood floor in the boatshed, screwed the laminating clamp blocks into place and mixed up some glue.

There is not a lot of curve in this tiller, I like the “hand end” to be about 100mm above the knee when sitting at the helm, and the final position will be set by shaping the haft end where it sits in the tapered slot in the rudder stock.  So with only a gentle curve to accommodate this was an easy job to lay up and clamp.




The shape drawn on the plywood boatshed floor, and the clamping blocks screwed in place, the lamells are laid out in order. Note that the tiller is much deeper at one end and finer at the handle end, so there are more layers at the "thick" end, no need to have it the same depth all the way.  Im read to start applying glue.

Glue applied, priming the one and laying the glue on the other for each layer, the whole set was layed on the supports, then clamps with little pads under the clamps feet were fitted, just lightly, then gradually tightened to bring the 12 lamells into the curve. Easy peasy, a little at a time but with that many layers in there the amount of force applied between the many clamps is considerable, so it pays to just be patient, a little at a time works well.

All glued, and clamped up. Its time to go and do something else for a day or so.

Next day with the glue all set, the first job was to plane it to the correct thickness, so it was with a scrub plane, that’s an ordinary block plane, in this case a Stanley number 4, with the blade sharpened with a round in the edge so the corners don’t dig in, that I cut all the glue squeeze out away and scrubbed that side down to fairly flat.
The edges of the layup don’t match perfectly so there is a bit of material to remove, that’s why the lamells are 35 mm for a finished thickness of 27 mm.

All good, now its time to get all the bumps off and the blank planed down to the correct thickness.

With one side fairly flat and the bumps of glue removed I put the blank through the planer, flat side down and the other side getting planed down.  Three passes got it down straight and true, then flipped it over and trued up the side I’d hand planed.


In action with the scrub plane. Note that I have a heap of these Stanley number 4s, 9 I think, and several have their blades ground for particular purposes such as this.  I watch the shelves down the back of a couple of favourite junkshops and if I see one at under $20 Ill buy it, do a little work on it it if needed, and put it on the shelf with its brothers and sisters. Youd be surprised at how often I use more than one on a job.


Careful measureing, still well over the 27 mm I needed, so more passes through the planer, taking care to remove a few little defects on the way, and when it was close, I tried the fit in the tiller slot, a couple of very fine cuts in the planer and I was happy with that.

Then the shape was drawn on one side of the tiller blank, and the shape cut with the bandsaw, in fact careful use of a jigsaw would have done it, or even a Japanese razor saw using the ripsaw side of the blade http://www.duckworksbbs.com/tools/pullsaws/index.htm
Either  of these would do fine as long as attention was paid to keeping it perpendicular to the surface being cut through.

Action with the router, that edge near the power tool is now nicely rounded over, it took about 30 seconds.  Note that I was given that old beast of a router by my elderly uncle, he thinks its probably 40 years old, today youd get one like that for $10 or so and it works just fine. Its much simpler than todays flash harry ones, and I much prefer it for heavier use. Ive a little laminate trimmer for very light work but this is the workhorse when there is serious stuff to do.


With the shape cut, the edges were trued up with a random orbit sander,  the piece clamped to the edge of the bench then a router with a 12mm radius bit employed to round the edges. Remember not to round the haft where it fits into the tiller slot, that just needs a very small round with sandpaper.


With some light sanding, its done.  Looks sweet, looks much harder to make than it really is.


Just a few finishing touches to be added. I cant wait to use it for real.

I’ll varnish it, apart from the oarlock support blocks it’s the only varnish on the boat, it adds a nice finishing touch.

I’m not so far away from sailing SEI,  have to finish the rudder assembly, turn some wooden end blocks for the carbon fiber boom and yard, then rig it, and I’ll be at the mercy of the winds.



Monday, April 11, 2016

Painting her bottom and other places

Owning any big boat is like a race, more or less like the tortoise and the hare in fact.  The hare, that’s the owner, is trying to stay ahead of the maintenance of the ship, while the maintenance needs of the ship are like the tortoise in that the deterioration of paint, varnish, antifouling and such goes on 24/7 all year around.
In winter when sensible people are snugged up in front of a fire reading  cruising stories telling of while coral sand beaches, turquoise waters and tropical sunshine, the race is still on with the paintwork still deteriorating. In summer when out sailing and enjoying the boat, yep, still goes on. Never resting!
If allowed to go on for too long the material underneath, whether wood, steel, aly or fiberglass is going to deteriorate as well so there is no choice but to be a part of that race, and the “hare” had better keep up.

I’ve owned my old ship for about 2 ½ years now, have done quite a lot of small paintwork, varnished much of the interior of the main cabin, filled a million little holes where fittings have been moved and the old screw holes not dealt with, have painted the inside of the cockpit, and  put her aground an hour or so before low tide so she’d lean over enough for me to wade around just more than waist deep reaching under and scrubbing her bottom with a hard broom. 

That latter has been fairly effective, and I don’t get much in the way of marine growth anyway as the water here at my dock is often quite brackish.  But the mud cakes, the antifouling paint wears away, and its past time it was renewed.

That plus the topsides paint has been flaking some, its thick, heavy and now that I’ve been in and sanded it some it would appear that whoever did the paintwork ages ago has short changed the owners and not used a proper priming paint.

More work to be done.

On Tuesday last I did the dreaded thing, entrusted my home to the tender mercies of the travel lift at Gulf Harbour Marina.

She’s up on blocks in a cradle, seems stable, but gosh, when I go up the ladder to go aboard it’s a very long way up, probably 5 metres to eye height when standing in the main cabin, when  Im in there I try not to look out the window!



 The end of day one.  There is not quite standing room under her, enough so that with a slight stoop and a roller on a 4 ft handle I can reach in to paint quite quickly. 
I get very nervous seeing my home up in the air like that, shes a long way up, and Im very keen to get her back in the water where she belongs.

Day one, rumbled off down the river, through the moorings and out to sea, along the coast and into the marina.
The workberth where the travel lifts operate ( there are two of them) is quite tight to get into, and there was a decent sized catamaran aongside in there which made it an “interesting”  task getting the ship against the dock and tied up.  No bow thruster, or even twin screws, or crew for that matter.  So, just me, 15 tons of ship, that big propellor hooked to old Henry ( the ship is powered by a 6.5 litre 6 cylinder Ford diesel,  135 hp and about 450 nm of torque at about 1800 rpm) and the dock.
As it happened, there was no wind, we made a perfect approach, prop walked  the stern across just before the bow touched the pontoon and I stepped ashore with fenders already deployed, picked up the mooring lines already flaked out  ready for use, and tied her up.
The half dozen spectators were just far enough away so they could not hear my sigh of relief!

The Marina crew waterblasted her to get most of the  rubbish off her underwater sections, which was very effective.  Once perched up on her cradle, it was” into it“ with the tungsten tipped scraper and sandpaper.   By the end of day one I had most of the bottom scraped off,  had wet sanded it to tidy the surface up, had begun the application of the underwater primer paint, and had shoulders that felt as though Atlas had been using them to hold the planet up.

I was a bit preoccupied here, so had let the time run on some, and only just made it to the bus stop to catch the bus back to my home, or where my home is usually docked so I could pick up my pickup and drive out to the local geothermal hot pools for a well deserved soak.

Made it, but had to sprint 500 yards or so to get there, it’s the first stop on that bus route so it doesn’t pay to count on the bus being late!
As a by the way, the public transport system here is a vast improvement on what it was a few years ago, and I find that I use it fairly regularly.  Well done whoever did that!

Day two, sanded off the topsides, applied more primer paint to the underwater areas. I thought my shoulders were sore the night before? Double that.  No, double double that.
Back to the hot pools, had a looooong shower and a soak, remember that my shower is 15 ft up in the air having her outside painted! Came home. Slept like a log.

Underwater primer coat on, topsides sanded off, Im about to put the masking tape on. 
Note that its all hand sanding here, power sanders spread too much dust and that would upset others painting, a very good reason to find somewhere else next time I want to haul her out. That plus usurious costs, the guys in the yard are great, but they dont set the prices.

Where am I staying?  Aha, the marina does not allow people to stay aboard their boats when up on the hard, so I have set up a hikers tent inside the shed, I’ve a portable head, good mattress, cooker, the icebox from Spook, my little gaff sloop, and of course have lighting and electricity.  My senior card gets me into the hot pools very cheaply and I’m a regular there anyway.  Nice place.

Day three, whooboy!  Sore shoulders! Double treble that.  Finished the primer coat underneath, filled the seeveral dings in the topsides with epoxy filler, ran the masking tape around her and managed to get a full coat of coal black antifouling on.  Another coat tomorrow and that’s done.  I’m hoping that I’ll get through the antifouling by lunchtime and have time to put the undercoat on the topsides so I can get two coats on over the weekend.


First coat of antifouling on, prop and rudder polished ready for its special coating. Note that has to be applied to a heated surface, so there is a paint stripper gun in my near future ( tomorrow morning, dont let me forget!) 
There is a second coat of antifouling to apply, that will happen tomorrow.  The weather forecast is for showers over the weekend which may scotch my efforts to complete the topsides paint, but if I can get the undercoat on I can do the rest at my dock. One way or tother she goes back in the water on Monday next. 


Note, this is not concours standard painting, its roller and brush, it will look fine from a few yards away, on a dark night, with sunglasses on! But it will protect the wood underneath which is the aim.

I had a thought that Diane Salguero ( did I spell that correctly Diane? If not, my apologies) might have liked to be here, she’s the best boat painter I know, a Port Townsend WA USA resident, and if you need your boat painted, she’s the girl to do it.)
Diane, I know about the weather in WA at this time of year,  its shorts and bikini top weather here and I need you and your paintbrush!

So I’m painting, 12 hour days with sandpaper, roller and brush.  In the meantime, there are many things I’d rather be doing, drawing boats, sleeping, sailing boats, sleeping, building boats, sleeping, visiting friends, sleeping, reading good books, sleeping, watching the sunset, sleeping.

I’m off to bed, even a sleeping bag in a tent set up in my shop is a very inviting prospect right now.

So its goodnight from me.




 

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