Boat – an indispensable vehicle in areas surrounded by water. Also for any lover of fishing a good boat is an indispensable tool. To make a boat with your own hands, it will take a lot of time and effort, it also applies to the financial side. However, today there are many materials that allow you to quickly build a watercraft at no extra cost, one of which is foam plastic. The following information will help to understand that the manufacture of boats from foam is quite real.
- Material Features
- 2Foodmade plastic boats: drawings
- 3How to make a boat out of foam with your own hands
- 3.1 Manufacturing frame
- 3.2Production of the main plating
- 3.3Production of internal and external plating
- 4Body foam and fiberglass boat do it yourself
The polymer from which the foam is made has the appearance of a foam mass. Due to this, there is a lot of air between its particles, which allows the material not to sink in water. In addition, the foam has good thermal insulation properties, low weight, high buoyancy due to the large area of the material and lightness. Polyfoam at the cost is accessible to everyone, and also is easily processed by the tool and well glued together. But, this material is easily destroyed, so it cannot be bent and give it complex shapes. Therefore, to give the strength of a homemade boat, its body is made not of solid foam, but of sandwich sheathing consisting of a layer of foam with glass mat. The technology of the sandwich is that between the two layers of the main load-bearing material, there is a separating layer of lighter material. Thus, the two layers of fiberglass are separated by foam.
You can use ordinary extruded polystyrene without glass fiber, but such a homemade foam boat will require plywood or other protective material on the outside, such as film or tarpaulin.
Homemade foam boats: drawings
Before you make a boat of foam, it is necessary to make her project. To do this, it is necessary to draw all the components of the future design with exact dimensions and shape. Usually the length of the boat is 2.6 m, and the width on the bottom is 0.78 m. The most difficult part in the design is to create a hull from parts that do not bend.
Drawings of the boat are recommended to be made in full size in order to avoid errors in calculations and to be able to directly mark the details of the hull. The drawing is applied on plywood, the so-called plaza. On the plaza are drawn the details of the boat, forming a bookmark, or the frame of the vessel – keel, transom, knopa, stem, stern piece, indicating width, height, cross-section of the keel. To save space on the plazas, you can draw the projections of the sides and half-widths one on another, denoting them in different colors. The projection of the hull should reflect the branches of the frame of both sides – right and left, which are best combined into the bow and stern groups.
In order for the quality of the manufactured vessel to comply with the design, it is necessary to take into account the rules for the arrangement of theoretical lines: these are the surface lines of the outer skin, the internal deck flooring, the stern and bow edges of the frames, and the carling and stringer edge lines. In more detail the design of the vessel and the assembly of the drawing can be viewed on the video.
How to make a boat of foam with their own hands
After making the drawing with a detailed application of all elements of the boat, you can proceed to the assembly of the frame. To the skeleton of the boat will be attached internal, external, and the main lining. It must be durable, because the quality of the craft depends on it. The main skin, made of foam, gives the ship stability and unsinkability on the water. Elements of the main casing should be tightly glued to each other so as not to let moisture through. The inner skin serves to protect the fragile foam from mechanical damage inside the vessel, and the outer one from the outside, it should be waterproof and durable.
The skeleton of the boat is made of wooden bars. This is an important part of the design, and it must be durable, tough and reliable. It is assembled in parts: each component is measured, and fastened to each other on screws or nails. To make the frame even more durable, you can attach metal corners and plates over the fasteners of the screws. The edges of the frame are made of plywood. When it is assembled, you can proceed to the manufacture of skins.
Making the main plating
The main plating will allow you to make the boat of foam plastic not sinking with your own hands, but rather keep well on the water. For its manufacture, you need to take sheets of foam plastic with a thickness of 5-10 cm, epoxy glue, a sharp tool for cutting polystyrene foam, as well as measuring instruments.
On the sheets of foam applied measurements of the frame area of the entire boat. Then they are divided into separate measurements, which will be collected together in the future. Since the foam cannot be bent, the corner joints are made of three elements. To attach the foam to the frame, you can use epoxy glue, which are used to glue the sheets, as well as nails with wide caps from flat metal plates.
Production of internal and external plating
The inner skin serves as a protective frame for the main foam polystyrene skin. It helps to preserve the integrity of the material from various mechanical effects, including under the pressure of the weight of the person inside the vessel. For the manufacture of inner lining can take plywood. First, the area of the inner surface of the vessel is measured. You can sew the entire area inside the boat completely or just the floor and the lower part of the sides. After measurements, they are applied to the plywood, after which it is glued to the main casing with epoxy glue in separate parts. It is necessary to ensure that the plywood does not bend under the weight of a person, damaging polystyrene foam.
External plating must be performed so that the boat does not damage the bottom or sides of the bottom irregularities or other obstacles. In addition, it will create a waterproof surface. To create a protective surface, plywood is glued to the parts of the vessel where a hole is likely to occur, as well as the bow of the boat. The rest of the body can be covered with a tarpaulin for moisture resistance.
Boat foam and fiberglass do it yourself
The home-made of polyfoam, pasted over with fiberglass, is made according to the following scheme:
- After the project of the future vessel is made, as described earlier, it is necessary to make a model of the boat from plywood. Pieces of this material are cut from the elements of the project, glued together with an epoxy-based adhesive (epoxy resin can also be used).
- Pre-prepared in accordance with the drawing, sheets of polystyrene are glued around the model of plywood. For better grip joints, they can be cut at a 45 degree angle.
- The perimeter of the boat is covered with a frame of rails 10×30 mm in size.
- The transom and forspiegel must be attached to the plywood model with screws.
- Further, the bottom is cut out and polystyrene, glued to the side and end parts, the load is placed on top. Excess material at the joints needs to be cut.
- The sides, which were fastened with screws, are now glued. They were needed in order not to vmyalsya polystyrene foam when gluing. The places of the holes from the screws are sealed with foam.
- The surface of the boat is sanded with sandpaper.
- Now you need to use fiberglass for pasting the hull on the basis of the material on 1 layer for the sides and 2 layers for the bottom.
- The body needs to be caulked, then cleaned.
- From the inside, the hull is also covered with fiberglass, the bead is in 1 layer, and the bottom is double-layered, then it is puttied and cleaned similarly to the outer surface of the boat.
A timber of 10×30 mm is also attached along the perimeter of the inner side, its fixation is made by stainless screws with countersunk heads. A hole is made between the inner and outer fenders, into which rectangular bars are inserted from both sides to fix sub-keys. Subsequently, a metal tube socket for oar keys will be welded there. Top side also pasted with fiberglass to eliminate possible leakage between the bars to the expanded polystyrene. Attach the stringer to the bottom of the screws, covered with epoxy resin. The final finish of the styrofoam boat is carried out using epoxy primer applied in two layers.