Showing posts with label wood. Show all posts
Showing posts with label wood. Show all posts

Monday, March 7, 2016

Wooden Boat Plans Australia | to drill and tap wood bass wood from RodCarr carrsails com via yahoogroups com

Wooden Boat Plans Australia


Drill a proper sized pilot hole. Load it with thin CA. Tap your thread. 5-40 or larger will work reasonably. Smaller than that, not so much. Rod Carr

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Wednesday, February 24, 2016

Dinghy Boat Plans | Bending wood

Dinghy Boat Plans


Im still doing wood work in the master cabin, and Ive been focusing in the bed.

The bed sits on a chest of drawers ( twelve drawers in total). Because our sink is in the master cabin, the walking path between the bed and sink needed to be "just so" in order for me to feel comfortable walking between the two. I moved the bed aft off the center line about 7 inches. The other design feature I wanted to build into the bed was having radius corners at the foot board to help navigate between the sink and the bed. Its amazing how more comfortable it is to walk past a radius corner vs a right angle corner. This, like other projects on the boat, is a fight for inches.

My first inclination was to cut multiple kerfs in the radius pieces to achieve the bend. Because one will see those kerf cuts, I decided not to go that route. I decided to laminate multiple pieces together and bend them around a form.

I re sawed stock into 1/8" staves to get the pieces I would need to do the laminating. I had problems cold bending the staves so I decided to steam bend them with a thrown together steamer and steam box.

I built the steamer out of a piece of square tubing witch I fabricated a base, a lid, and a nipple to accept a piece of radiator hose. The steam box was built out of duct tape and some old 2" rigid insulation I had laying around. I drilled some 1/4" holes in the side of the box to insert welding rods to make shelves for the lumber to sit on. My wifes meat thermometer put a high tech look to the whole contraption.

Once the box got up to 212 degrees, it only took about 20 minutes for the wood to act like a piece of rubber. I had to work quick to get the glue on then get the pieces bent around the form. Another person sure would have been handy, but I managed to pull it off.

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Pontoon Boat Plans | Drawers

Pontoon Boat Plans



My drawer count at press time stands at 15 drawers in the master cabin: 12 under the bed, and three more at Shannons dressing/vanity table. Weve got a fairly large kitchen at our house, and we only have nine drawers in that kitchen. Needless to say, Im getting all pumped up at how much storage space Im squeezing into the master cabin.

I copied the drawer design that is on our 28 Carver cruiser boat. That design has served that boat well for 33 years with no failures. The design is extremely simple and uses no expensive hardware. I had thought about using metal slides with bearings, but given the odd size of the drawer depth, too much modification would have to happen to the parts. I also wasnt to psyched about dropping $200.00 on hardware that I would have to modify. So I went with a sliding dovetail to connect the drawer front to the drawer sides, an plastic guide that rides in a shop built hardwood track. The fronts are solid Cherry, the sides are 1/2" Cherry plywood left over from the paneling, the bottom is 1/4" Birch, and the back is more of the 1/2" Cherry ply. I had quite a nice pile of Cherry plywood scrap left over from paneling the master cabin, and the drawer project pretty much wiped out what I had left. These drawers are an overlay design.

I had to sort of think like a production guy and try to mass produce my parts for this rather large job. The first step was to measure all the rough openings and label them 1-15. I then developed a cut list for the fronts and sides. Once the fronts and sides were milled and cut I laid out where the sliding dovetail socket would be located. I laid out the dovetail so that there would be 3/16" of a gap between the side of the drawer and the face frame of the drawer chest. 3/16" is a little more gap than I would prefer, but I can always go back and install a filler piece if I feel the drawer wanders to much while opening or closing. Given that this is all wood, I have to give myself a little cushion with the expansion and contraction that is going to happen. Id rather err on caution.

The first cut I made was the dovetail socket in the drawer front. I did this work on my home made router table/ glorified box that I can hang my router off of. The real money maker on my home made router table is the fact that I borrow the fence off of my shaper witch gives the router table a fine level of accuracy. Being able to micro adjust the fence gives me quite a level of precision for this type of work. The next cut was to route the dovetail pins in the drawer sides. This cut is where the micro adjustable fence comes in handy. Once all the socket and pins were machined I laid out and machined the 1/4" grooves for the bottom to ride in. The next cut was to machine a dado in the drawer side to accept the drawer back. The final cut was a 3/4" x 1/4" deep dado on the bottom of the drawer sides where the side meets the drawer front. This dado is what causes the drawer to drop over the face frame when closed, thus preventing the drawer from opening when things start rocking and rolling. I machined all the grooves and dado cuts using my table saw and a Freud dado set.

The assembly went pretty quick... about 20 minutes per drawer. Once I was ready to assemble, I measured for the drawer bottom and drawer back, then cut these two last parts. I sanded the insides of all the drawer parts with 220 right before I assembled. I applied glue to all the dovetail pins and glue to the dado that holds the back. I then slid the drawer side into the drawer front. I machined the dovetails so that I would have to only tap them home with my fist vs having to drive them with a mallet. Even with that tolerance, once the glue was applied I did have to persuade a few with a dead blow mallet. I then slid the bottom piece into the grooves, slid the drawer back into the dado, used a bar clamp to pull the sides tight against the back, then pinned the sides to the back with my pneumatic brad nail gun using 1" brads. I then laid the drawer upside down on the bench, checked the diagonals, then pinned the bottom to the back. The final step was to wipe off any glue.

Ive yet to decide what kind of pull Im going to use. Since Im on a budget, I think Im going to route a finger pull on the inside bottom edge of the drawer for a pull. A cove bit is what Ive got in mind. Im still going to look at store bought pulls, but Id rather save the money. Having been in residential construction all my career, Ive kind of learned a lesson watching others build houses they cannot afford. " Its easy to spend it early". Ive seen too many people get in pissing matches with their builder because they blew their wad too early in the game. I kind of like the flush look with now hardware on the drawer face.

Im going to get a few coats of finish on the drawers before I install them. Ill attach the plastic guide, then make sure the drawer fits. I designed the rail so that the plastic guide sits 3/4 above the rail. I figure Ill have to do a little block plane work on some of the rails to loosen up the rail/guide fit so its not an interference fit.

Anyway, the drawer build was a pretty big job and Im glad Ive got it behind me. Ive got to build my desk and cabinet, then Ive got to build the sink base for the master cabin sink. Once Ive got those last three jobs finished, Ill bung all the screw holes and get some finish on things to start protecting the wood.

I decided to rout a finger pull in the drawer fronts. The more I thought about it, the more I felt a finger pull would fit well with the look of the cabin. Ill probably do the same finger pull on the cabinet doors. I used a 1/2" cove bit with a bearing to route the pull. The pull feels fine on the prototype drawer, and with its 3" length, ones fingers find it easily. On the larger drawers, I routed two pulls.

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Thursday, February 18, 2016

Boat Plans African Queen | Wood choices and AMYA rules for Star45 Class

Boat Plans African Queen


Hulls may be planked using any number of types of wood, including thin aircraft plywood, cedar, balsa, etc.

The Star 45 is a terrific boat for sport sailing and family fun. If you want to race other Star 45s you should build to the AMYA Class rules.

Here are key 2006 AMYA Star 45 Class Rules,section 1.0 Hull:

1.1 The Star 45 Class establishes as their approved plans a set of lines and drawings as the approved reference and construction plans for the class. These plans are scaled and appropriately modified for the use of modelers building a 45-inch model of the Star Boat. Existing plans supplied by kit manufacturers, etc. are grandfathered. New molds, plugs and scratch built models shall conform to the approved plans and specifications.

1.2 Hull length will be 45 inches (plus or minus one half (1/2) inch overall. (NOTE: this does not include any chain plate for backstay attachment, or 1/4 inch bow bumper if used. However, if the chain plate is attached to the transom or overhangs the transom, it may not extend beyond the transom more than 3/8 of a inch.) Hulls may not be less than 11 inches nor exceed 12 inches in beam when measured at the widest point on the deck. (Rubrails are not included in measuring but will not exceed 1/4 inch of thickness/width.)

1.3 In the event of a builder choosing to scratch or hand build a Star 45 Yacht, the builder must adhere to the class approved reference and construction drawings, as obtained from the AMYA Ships Store, as in the builders ability. A second consideration in scratch building is to ensure that safe and sound building practice be maintained.

1.4 All hulls will be constructed of wood or fiberglass or a combination of wood and fiberglass and be a minimum of 16 ounces when weighed before attachment of the deck and keel. This weight must be verified by another member of the Star 45 Class using the Class Measurement Form.

1.5 Decks shall be constructed of wood, fiberglass or plastic laminate material.

1.6 All hulls shall be the standard hard-chine hull. Hulls may be built with a sheer at scale height or with a sheer no more than one inch higher than scale (when measured at the point of maximum depth of sheer.)

1.7 All fiberglass and wood hulls will have a name plate permanently attached to the inside of the hull so as to be seen when the hatch cover is removed.

1.8 At or before its first Sanctioned Regatta the newly built model yacht must be measured using, as reference, the approved measurement form and signed by not less than the owner of the model yacht and one other member of the class. This measurement form shall become, with the registration card, a permanent record of this model yacht.

1.9 The AMYA Star 45 Class recognizes and approves the molds and manufacturer and/or kit packagers of Star 45 molded hulls and kits in existence at the time of approval of these specifications. These sources will be approved sources for the class. New manufacturers will be directed to submit the first of their product to the Class Secretary for approval.

1.10 No maximum weight is specified, however, no yacht will weigh less than 12 pounds when fully rigged ready to sail. This means with all gear, rigging, sails, radio components, batteries and ballast placed and secured on board.

1.11 Bow Bumpers are mandatory for all class registered STAR 45 yachts. Bow bumpers are limited to three eights of an inch (3/8") overhang. Bow bumpers shall be excluded in the overall length measurement, whether recessed in or otherwise attached to the bow stem. Bow bumpers must be of resilient fabrication to minimize damage to another yacht in the event of a collision.

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