Build Your Own Optimist Dinghy 12
This boat was designed to be built from 3 sheets of plywood, with basic owh abilities. As time progressed, builders Build Your Own Optimist Dinghy 12 Build Your Own Optimist Dinghy 12 began to modify the boats to gain speed advantages - as happens with all vehicles. In the International Optimist Association took the boat back to its roots and a set of dimensions were compiled to retain an exact shape of the boat, so as to remove design advantages from one boat to iptimist.
The tolerances do not allow the builder to exploit the possible variations Build 12 Dinghy Optimist Your Own of shape of the hull, but do allow a competent builder to construct a legal racing hull. Half Moon Bay Yacht Club has a summer youth sailing camp. Through the years we have trained many a young boy or girl to rig and Build Your Own Optimist Dinghy 12 sail the small boats available to us. Normally in an older Laser or Coronado Inthe sailing program decided that the Optimist had Build Your Own Optimist Dinghy 12 a place in our sailing fleet to allow the younger kids to rig, launch, sail and retrieve the boats themselves while Build Your Own Optimist Dinghy 12 under adult supervision.
We quickly focused on making racing legal hulls so as to be competitive with other surrounding bulid clubs. I Build Your Own Optimist Dinghy 12 Build Your Own Optimist Dinghy 12 Build Your Own Optimist Dinghy 12 made it at TechShop. Due to the close tolerances allowed, and the desire to have an almost identical fleet of boats, the Build Your Own Optimist Dinghy 12 ShopBot fit the bill to the letter.
Once I redrew the plans into CAD drawings and bulld to cut files the Own Optimist Your Dinghy Build 12 different parts of the boats were identical. Each group of people that wanted to build a boat only had small amounts of fitting, beveling and gluing to accomplish, with very little use of dangerous equipment needed and gour progress to show 122 their Build Your Own Optimist Dinghy 12 efforts, so kids oen right into the task of building boats.
The jig produced on the ShopBot retains the correct shape and Build Your Own Optimist Dinghy 12 supports the boat, while it is being built, to retain the exact design measurements. The plans for the boat can be found Build Your Own Optimist Dinghy 12 Build Your Own Optimist Dinghy 12 from many sources for free on the internet. Plans are available in many languages, as. But none provide CAD quality drawings Build Your Own Optimist Dinghy 12 or files to work with modern computer controlled machine tooling. Well, here they are: The jig as well as the major parts Build Your Own Optimist Dinghy 12 Build Your Own Optimist Dinghy 12 of the boat.
Now to build your own optimist Can You Build Your Own Yacht Game dinghy 12 started, the jig we have designed is the exact dimensions of a finished hull shape. Both ends of the jig have interlocking pieces to allow for inserting and removing as needed during the building of the boat. These should be cut so as to be flush with the top of the form and screwed into place to prevent movement.
The bottom optimits provide a stable platform for the jig to sit on. The jig should be placed on a flat surface for the build, as distortion to the jig will transfer to the boat being built. Save Own Your Optimist 12 Build Dinghy the scraps for blocking. The file for the hull bottom, midship frame, dagger board case sides and corner braces are cut from one 4' x 8' sheet The first cuts should be for the 6mm deep dado at both ends of the hull to join the bow and transoms to.
The second cut should be for the dagger board trunk cut. Dinghhy third cut should Build Own 12 Dinghy Your Optimist be the outline of all the pieces. In order to fit both sides of the dagger board trunk on one sheet, Build Your Own Optimist Dinghy 12 one side will have a joint to be epoxied together to match the other. The next setup should be for Build Your Own Sailing Dinghy 400 6mm plywood. Again a 4' x 8' sheet will make both ends, both sides, mast thwart frame and again scraps can be used for Build Your Own Optimist Dinghy 12 Build Your Own Optimist Dinghy 12 doublers and clamping pads. You now have a boat cut and ready for a little fitting.
Bevel the edges of the bottom to the approximate angles of 15 degrees with a block plane and you are ready to start your build. I would Build Your Own Optimist Dinghy 12 recommend a dry fit of all parts prior to mixing epoxy. This doesn't take buld and may save you optimjst Build Your Own Optimist Dinghy 12 lot of trouble with messy epoxy. Center the bottom in the jig, stand on it to bow it and build your own Build Your Own Optimist Dinghy 12 optimist dinghy 12 it down, and temporarily screw it to the 2" x 4" 's mm each side of center line to allow for gluing of the doublers without covering the screws, so they can be removed later.
The holes optlmist be filled Build Your Own Optimist Dinghy 12 in when the boat is removed from the jig with o;timist. Rip a 4' x 8' sheet of 4mm plywood into 1- mm strip and mm strips with a 45 degree beveled edge. This can be buiod on the ShopBot or a Build Your Own Optimist Dinghy 12 table saw. These are the doublers for the bottom to meet design minimum thickness while saving weight. Once these are epoxied into place and trimmed you are ready to install the build your own optimist dinghy 12, mid ship frame, bow and transom.
The mid ship bulkhead can be used to position the strips in the build your own optimist dinghy 12 place on Build Your Own Optimist Dinghy 12 the bottom of the hull.
Once these are epoxied in position, placing iwn weights on top, until dingny, works. You will be covering the dagger board slot, but that can be easily cut out once the hull is removed from the build your own Build Your Own Optimist Dinghy 12 optimist dinghy 12 and turned upside yoir for fitting the dagger board trunk and filling of screw holes. The plans show Build Your Own Optimist Dinghy 12 two temporary braces. These can be made from any scrap potimist and are used to hold yoir proper shape of the sides while doing the assembly and glue up.
Once the gunwale rails are installed these will be removed and discarded. The bow and transom fit into the dado at the front and optlmist of the hull bottom panel. The sides wrap around the outsides. A Build Your Own Optimist Dinghy 12 couple small blocks of wood screwed onto the jig at the bow and stern help in keeping the sides in position while clamps are applied. A small slot cut into the two forward jig pieces to allow a small bar clamp of your choice works well to hold the two sides together tightly.
Once you are comfortable with the fit optomist build your own Build Your Own Optimist Dinghy 12 optimist dinghy 12 the parts your ready to mix epoxy. Wet out each side with unthickened epoxy. Then add a small layer of thickened epoxy and assemble with the temporary braces and mid ship brace installed.
Next is the mast deck and thwart. Fit and epoxy in place. Some of the scraps of 18mm can be used for the doubler in build your own optimist Build Your Own Optimist Dinghy 12 Build Your Own Optimist Dinghy 12 dinghy 12 areas.
You can install the bow and transom doubler before or after this step. Gunwale rails and rub rails are. You can use layers of plywood or fancy colorful woods if you plan to use a clear finish to show off Build Your Own Optimist Dinghy 12 Build Your Own Optimist Dinghy 12 Build Your Own Optimist Dinghy 12 your work. Build up the layers until you get to the final thickness required, per the plans.
Rip 1 for each Build Your Own Optimist Dinghy 12 Build Your Own Optimist Dinghy 12 side of boat starting with a 45mm wide piece stepping down 5mm for each 10mm Build Your Own Optimist Dinghy Document of thickness.
Cut out pockets for and install the corner blocks. Form and shape the rails to the required build your own optimist dinghy 12 and thickness and you Build Your Own Optimist Dinghy 12 are ready dinhy remove the boat from the Jig. We used a hand planer for the rough shape and finished with Build Your Own Optimist Dinghy 12 Build Your Own Optimist Dinghy 12 a belt sander.
It will now hold its shape and dimensions. The jig can buil used as a cradle to support the Build Your Own Optimist Dinghy 12 boat as you work on it either upside down or right side up. Once the boat is removed from the jig, Build Your Own Optimist Dinghy 12 it can be turned over and all joints filled with thickened epoxy. Install the dagger board trunk through the hull yiur epoxy in place.
We choose to put our build your own optimist dinghy 12 logo and hull on the sides build your own Build Your Own Optimist Dinghy 12 Build Your Own Optimist Dinghy 12 optimist dinghy 12 the dagger dinghg trunk. Once again the ShopBot makes this a blank canvas for your artistry. Below one Optimist Own Your 12 Dinghy Build of the boys is rounding the edges before the dagger board trunk is installed. Shape the bottom of the dagger board trunk Build Your Own Optimist Dinghy 12 to conform to the hull bottom from the outside dnghy it is cured in place.
Install the doubler pieces on the inside Build Your Own Optimist Dinghy 12 12 Dinghy Optimist Own Build Your to help support the dagger board trunk. We installed a few wood dowels into the opttimist frame to add strength as. Sand, Build Your Own Optimist Dinghy 12Build Your Own Optimist Dinghy 12 Build Your Own Optimist Dinghy 12 Build Your Own Optimist Dinghy 12 Dinghy 12 Own Optimist Build Your rong> epoxy and finish the exterior of the hull as desired, with either paint or a clear finish. On the inside of build your own optimist dinghy 12 hull fillet the joints with thickened epoxy. Install the flotation build your own optimist dinghy 12 pads, and main sheet block pad.
Build your own optimist dinghy 12, epoxy and finish the interior of the boat Build Your Own Optimist Dinghy 12 as desired and the hull portion of your sail boat is build your own optimist dinghy 12 for hardware installation. We youg white enamel for the insides for a cleaner look. You will also find the dingghy from one otimist the internet sites.Build Your Own Optimist Dinghy 12
Download these and print copies to have available as you work. To build a race legal hull requires a measurement by build your own optimist dinghy 12 certified Optimist qualified measure person. Plan on 4 hours or more for this process.
The PDF Build Your Own Optimist Dinghy 12 Build Your Own Optimist Dinghy 12 file is the list of measurements for the hull. The tolerances are close, but with the build your own optimist dinghy 12 Build Your Own Optimist Dinghy 12 Build Your Own Optimist Dinghy 12 of the CNC controlled cutting you should have a race legal hull that your kids can be fully involved in the building Build Your Own Optimist Dinghy 12 of.
The dagger board piece and rudder build your own optimist dinghy 12 was cut will need to be shaped and Build Your Own Optimist Dinghy 12 profiled. Again we used a plane for the rough shape, followed by the belt sander.
Hardware kits are available online as well Build Your Own Optimist Dinghy 12 as sails, spars, FRP bulld and dagger boards at very reasonable prices. Sail Plan The sail can be home-made, as well, Build Your Own Optimist Dinghy 12 Build Your Own Optimist Dinghy 12 Build Your Own Optimist Dinghy 12 but with mass production the prices just are hard to beat. Again the spars can be made from PVC pipe, Wood or Aluminum tubing, but most can be purchased for a cheaper price than your time and investment. You probably won't need o;Build Your Own Optimist Dinghy 12 Build Your Own Optimist Dinghy 12 Build Your Own Optimist Dinghy 12 timist hottest racing level gear until huild see build your own optimist dinghy 12 your kids are in for it.
Then watch out if they catch the bug! You will be one proud parent to have started them out on such a great and optimidt life of sailing.
Hi Dave, I was the person who wrote the original wood build guide and instructions for the Build Your Own Optimist Dinghy 12 Build Your Own Optimist Dinghy 12 Opti. I applaud your continuation of that work by adding the CNC cutting information and some great instructions.
The jig is Build Your Own Optimist Dinghy 12 a great addition as well and should save builders a lot of grief. I had always wanted to do the CNC cut files but once my daughter aged out I was not as enthusiastic as when she was sailing the boat. One thing Build Your Own Optimist Dinghy 12 I had also dingh to do was add a line to the cut files to show the accurate bevel line on the parts.
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