How to make a rc boat out of foam

By Dalkis | 08.04.2021

how to make a rc boat out of foam

Jul 24,  · Radio Control model boat construction with double brushed DC motors from foam20A Brushed ESC: Coupler: http. Aug 19,  · Foam RC Airboat Build DIY Step 1: Material and Components. Here's a list of all the necessary materials and electronics you will need for this Step 2: Airboat Body Dimensions. Once you have gathered all the necessary electronics, such as a motor, electric speed Step 3: .

There are fooam lot of kits out there, and more are cropping up every day. Yow said that, the odds that a kit of the exact boat you're looking to add to your fleet being available every time is slim. You can chalk up one to the small hobby and move on to another boat, or you can get up and do something about it yourself. Building your own hull is actually a pretty straightforward exercise and the shape of most submarines lend themselves well to a technique called the Lost Foam Method.

In a nutshell, you build your model out of foam, fc up epoxy and cloth on the exterior, cut it in half, pull out the foam, and you're left with a perfect well With the help of some excellent videos put together by my good friend Dwayne Hill up in Quebec, Canada, I wanted to take a few minutes and run through the process, start to finish. View the videos at the links below, and read on for a description of each step:. Video One: Plans, templates, foam and stacking.

Video Two: Epoxy cloth, hollowing out the boat. Video Three: Control surfaces, rudders. Video Four: Inlets, grates, scribing.

Video Five: Sail and periscopes. Materials and Tools Recommended:. Section One: Do Your Research. Any project requires planning, and building your sub is no exception. The biggest asset you'll have at this point is a good set of blueprints, ideally one that includes loftings, or cross-sections of the hull at given stations along the hull.

This will allow you to create the foam block outlines when you start cutting foam. Also ensure that you have the rights to use the plans from the original owner. Now that you have plans, you should decide what scale you're going to build in. Big boats are easier to work on and behave better on and under the water, while they also are harder to transport and store. Larger components fpam as props, pumps and seals may be harder to find and cost more as well.

I'd highly recommend going with a standard scale such as,or If you're lucky, you'll be able to find off-the-shelf detail parts that will make your life easier down the road during detailing. So, plans in hand, now you need to take them to the local print shop and get them blown how to get started in tekkit 1.5.1 to scale for the boat you're building.

This will make tl much easier when you need to measure out distances hoe sizes. What you'll want next is bot find your foam. Closed-cell construction foam is ideal for this purpose, cheap, easy to find, and easy to work with. It is typically sold in 4'x8' sheets in thicknesses how to get into a trade school 1" and 2".

Ideally, your stations from your drawing will coincide nicely with the thickness of your foam sheet. If not, you'll or to cut sections of foam to match your drawing or else extrapolate at a mid-point. Styrofoam product by Dow Corning is what I use. Now that you have your foam, you need to transfer your drawing templates to them. You take your drawing and make one copy of each of the station outlines.

Number them from 1 at the bow through all of the sections until you have all of the templates marked out clearly. That done, you secure the templates to the foam with spray adhesive or white glue.

The next step involves cutting the foam along the outline of the templates, using them as a guide. Modern subs are a great project to start with due to how easy the basic shapes are. Most are circular in cross-section, and you can mark and drill the center of your circle to press a rod through for perfect alignment and strength in the next steps.

To cut the styrofoam, you can use a rrc sharp utility knife, but if you have one, a scroll saw or band saw makes quick work of this stage. Beginning at either the bow or stern, begin stacking the discs of styrofoam onto your alignment rod, adhering them together as you go.

I find that hot faom works well for this, setting up quickly and with a z, strong bond. This is where things start getting exciting, as your project now looks like a submarine and not just a pile of foam sheet! What you have at this point is a submarine-ish shaped object that consists of stepped discs. What we need to do now how to make a rc boat out of foam knock the edges down and blend them one into the other.

If you're working on a boat that has a perfectly cylindrical cross-section, a great time-saver is to rig up a ouh lathe using a power drill and the rod that you previously inserted down the length of your boat for alignment. You'll need to build a simple mount for the drill using pipe clamps and 2x4's. By powering up foamm drill, you end up with a lathe that turns your boat quickly about its center-axis. You can use your utility knife to shape the edges together roughly, then progress to a rasp or other coarse hwo to further blend the edges.

As you get closer and closer to the correct shape, progress to o and finer files, ending with sandpaper for a smooth finish. If your boat is not perfectly circular, you'll be stuck doing things manually, unfortunately. Section Three: Laying Up your Shell. If you've managed to come this far, you're probably pretty w. You've got a submarine-ish looking thing on your bench and you can already envision ojt it will be like to run under the waves of your local pond.

The next step is to create your hard shell that will become the hull of your submarine. You'll need to get some good quality two-part epoxy such as that from West System. You'll also need some fiberglass cloth not the matte, the cloth! Cloth is specifically designed for use with epoxy.

Also note that Ho stipulated epoxy and not polyester resin, which is what most people are used to seeing and using. Polyester resins will attack your styrofoam plug, melting it into a pile of goo and effectively killing all of your hard work.

Don't use it. Epoxy is more expensive, but much easier to work with and it smells much better as well! Lay out your cloth and mak it to shape, aiming to get the upper or lower half of the hull in one sheet, if possible. Note that curved sections like the bow or stern rrc require you to slit the cloth so that it how to make a rc boat out of foam be overlapped without wrinkling. Preparation at this point will save hassles as you're wetting out the cloth. Cut enough to cover the half of your model in 3 layers.

Begin by wetting down the entire upper or lower half of your plug with properly mixed resin. A 2" disposable brush is perfect for this. Once you have a how to set bulova watch of epoxy on the plug, carefully lay out your cloth over it hlw press it down firmly to keep it oc place.

Saturate the cloth with more resin, watching closely for any trapped air beneath it. If you find a pocket of trapped air, dabbing at it with the brush will force it out through the cloth. With a mid-weight cloth, this will end up being bozt 3 ot. Once you have three layers of cloth laid up, put one last layer of epoxy over everything to smooth out nake final finish. Let the resin cure for at least 24 hours. The longer oyt leave your resin to cure, the less chance it will bat to warp once you remove the core inside.

Going on vacation in a few weeks? Leave that thing alone until you get back. That way, you'll be sure of a strong cure with little to no warping down the line. Once the resin is fully cured, you can begin to sand and fill the hull to eliminate imperfections and get a perfectly smooth finish.

Large imperfections can be filled with a good automotive body filler while smaller ones can be addressed with automotive scratch filler or glazing putty. Section What is the meaning of zodiac sign virgo Splitting the Hull.

We what is an overload relay now ready to split the hull in half in order to gain access to the interior of your boat. The best way yow start is to mark out the mxke of your sail and cut out that area of epoxy shell. This done, you will have exposed the styrofoam core.

What you will need for this next step is your jug of acetone. Acetone dissolves styrofoam quite handily, but it makes a stinky, goopey mess.

A properly ventilated work area, safety glasses and protective gloves are a necessity for safety. Pouring acetone into the too for your sail will hw your core and make splitting the hull much easier than if you fosm to attempt it with the core in place. If you get a glimpse inside your model after you dissolve most how to become a metallurgical engineer the styrofoam, you'll see foamm there is still quite a bit of it ho inside.

Don't fret. You only need to get rid of enough to make it possible to split the hull. What you want to do next is secure your model on your bench so that it sits perfectly level. Run a strip of masking tape around the perimeter to provide a clean surface to transfer your mid-point via a pencil or fine-tipped marker. Another alternative to scribing at the mid-point is to scribe at the waterline. This works well for boats with a lot of freeboard high surfaced trim. Cutting many modern nuclear boats at the waterline will not allow adequate access to the interior for the installation of linkages, and splitting at the center is recommended.

This also makes painting it easier, as the lower hull is typically anti-foul red and the upper is flat black. Splitting at the half-way mark saves masking. As you can see from the photo above, you will want to build a jig to hold your pencil at a perfectly uniform height as you mark out your cut. Two pieces of plywood screwed together at 90 degrees works perfectly for this.

Introduction: Foam RC Airboat Build DIY

In a nutshell, you build your model out of foam, lay up epoxy and cloth on the exterior, cut it in half, pull out the foam, and you're left with a perfect (well perfect-ish) fiberglass shell. With the help of some excellent videos put together by my good friend Dwayne Hill up in Quebec, Canada, I wanted to take a few minutes and run through the process, start to finish. Aug 27,  · Glue the bottom pieces to the transom. Tip: Sand down the inner parts of the bottom pieces before for creating a strong glued joint. When the trasom glue has dried up, put the bow sections together. Tip: Glue four semi-spheric wooden sticks as bilge keels.

Tip: Under mm boats built with this plans tend to submerge when the lake is choppy. Be careful! Tip: Sand down the inner parts of the bottom pieces before for creating a strong glued joint. Tip: Glue four semi-spheric wooden sticks as bilge keels.

They will help the boat going straight at high speeds and rolling less. The deck is straight until it reaches the yellow line. Exceeding it may cause problems when fitting the cockpit. Polyester resin is a good sealer and adds extra strenght to the structure. Without it boats tend to dissasemble while crashing or after a few days touching the water. Tip: Install a rubber bellow enclosing the servo bar. Avoid water to seep in! Tip: Seal the axis and bellow with lithium grease. Without it water could flow inside the hull easily.

When you have the cockpit in place and the boat ready to sail, paste electrical tape on the cockpit-hull junction. Tip: Make it waterproof or fix the pieces together with another glue. White glued parts tend to separate while in contact with water. Results may vary depending on the sheet quality, the ink type and the printer model. You can add more to the decal areas to be sure they are not going to move or smudge. Safety first! Question 5 weeks ago.

How important is it to get a certain kind of shell of an RC boat when you're going to install a brushless motor or can you install a brushless motor to any kind rc boar shell.

Question 3 months ago on Step Answer 2 months ago. Hello, you can find the dimensions in this document : RC Boat Plans. The designer recommands bigger than mm.

Reply 6 months ago. Question 6 months ago. Question 2 years ago on Introduction. Answer 2 years ago. Hi Tem, I don't know if it is 3mm plywood or 5mm plywood but don't use plywood Plywood works in the beginning but then gets moisture inside and breaks.

I recommend marine plywood because that is what all modern day boats are made of to stay durable and safe. Most plywood is water resistant today as they use a resin glue, At least that's what I have been tolled. Question 1 year ago on Introduction.

Hey,,, I'm interested for RC boat,,, and I want to make rc boat for ship,,,like simple only simple ship,,, because I just learned make rc ship boat,,, do you have designed,, thanks for u attention,,Greetings from East Kalimantan,,, my email : donzuan69 gmail. Question 1 year ago on Step 1. Can you give me the details how its lenght width in a simple word the pattern so that i can easily know how to work a boat. Question 1 year ago. Question 1 year ago on Step What is the max diameter of the propeler that can be used?

Introduction: RC Boat. By Francisco Moliner Follow. More by the author:. About: 3rd year Mechanical Engineering student. Maker when possible and DIY culture lover. If something explodes, revise the diagrams!

Check the "to be written" projects here! Here you have the boat plans in. Download the. Attachments RC Boat Plans. Build the boat: 3 and 5 mm plywood panels. Coping saw. Sand papers. Polyester resin. White glue. Red, black and white paint.

Inkjet with white and decal sheets. Electronics: 15kg servo. CNC Coupling. HB Brushless motor. FS-CT6B transmitter. Resize the. PDF as you wish for making a bigger or smaller boat.

This model is mm long. Print the pieces in white paper sheets and stick them on the 3mm panel. Draw the contour of the pieces with a pencil into the plywood. Dettach the papers and cut the panel following the lines you have done before. Glue the bottom pieces to the transom.

When the trasom glue has dried up, put the bow sections together. Repeat the Step 3 process with the side pieces. Notice the extra lenght added to the rear pieces for hiding the rudder. Join the Half of Deck paper sheets together with cellophane tape or draw the contour of one piece and later the other one with the same sheet.

Decide the cockpit size and cut the deck squared gap with a cutter. It may vary depending on the motor and batteries you are going to use. Mix it with two catalyst drops in a can. Pour it inside the boat and spread it over all surfaces and joints. Attach the rudder shaft to the transom with four screws. Cut another 5mm piece.

The servo support must have four drilled holes. Cable ties are a simple way of making a servo keep its place. Pass them through the holes.

Make a 5mm plywood motor mount. We are using the HB Brushless Motor. Align the motor with the 4mm propeller axis and glue the mount to the bottom pieces. Accessories as trim tabs and turn fins can be bought or made using aluminium plates. Make an U structure using thin plywood sheets and squared sticks, the cockpit must fit in the gap.

Glue four screws to it. The last picture is another boat, its Instructable will be ready soon! Give shape to a polystyrene sheet using sand papers. This is going to be the mold. Wrap it in plastic. This will help to separate the final pieces. Add fiberglass strips soaked with resin all around the mold.

When dry, apply more soaked strips to put the upper and lower cockpit together. In the newest models I use another technique to make the cockpits, I will explain it soon.

Add four squared sticks to the finished cockpit. Make sure they fit the lower U structure! Drill four small holes to let the screws pass trought the cockpit.

Air intakes look nice and help to cool down the electronics and the motor.

4 thoughts on “How to make a rc boat out of foam

  1. Dazuru

    I have subscribed your channel and keep the videos coming.

  2. Akigar

    You guys put lots of love into your products and it shows. Thank You XLN

  3. Mekora

    Maine bhi try kiya lekin game chal hi nahi rahi hai.


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