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    Forum
    Fast attack craft
    Hi Martin, "It will need to be bigger for RC." Actually I don't think so. There are so many mini, micro, pico, RC
    components
    available these days, look at the Deltang RXs etc for model railways for example! http://www.micronradiocontrol.co.uk/ I managed to squish two 385 motors into a sub hull WTC only 5.7cm (2.25") wide. Electronics, except ESC (visible next to the battery forward of the engine room), into a similar, but tapered, compartment in the bow. So motorisation and RC must be possible with your boat with 4.25" beam. But in your case, as you say you have no possibility to get to a sailing pond😭, I s'pose static models is the only solution ☹️ But can also be a source of satisfactionπŸ‘πŸ˜Š Cheers, Doug 😎
    26 days ago by RNinMunich
    Forum
    46'' RAF Crash Tender
    Hi Red, Just found this on the net. There are two approaches you can try for fixing warps in plastic. The first is to simply clamp the parts and adhere them with adhesive. I prefer the liquid styrene cement, which actually fuses or welds the parts as opposed to adding an adhesive to create the bond. Once so fused, they're nearly impossible to separate. Most of your alignment issues can be addressed this way. Most warping issues for these models come when you cut it to allow access for your RC
    components
    . These are usually long cuts along the mid-line of the boat. It is common for the cut parts to see warping along the length, creating gaps in the seam that are unsightly and hard to address via the first method. For these, the solution is to mechanically force the part straight, then heat the plastic up to its Glass Transition temperature for a short time, then cool it off. Polystyrene begins GT between 175-195Β° F (79-91 C) depending on its molecular weight, plasticizers, pigments and fillers. In order to straighten warped polystyrene parts, you need to get the plastic up to that temperature, allow it to settle in the proper shape, and then cool it back down again. There are a number of ways to accomplish this. The safest one for small parts is to use hot water. Simply heat up a bowl of water in the microwave to something around 200F, allow it to cool slightly and then dunk your part. Once the plastic has heated up, it should become more malleable and retain whatever shape it's put into. Dunk the part in cool water to lock in the new form and you're done! You can also use your oven, which allows for precise control of temperature in a larger format. Most sub hulls are going to be much larger than your bowls or oven, so you're going to need to use something like a hair blow dryer or, ideally, a heat gun. This takes some practice, as it's easy to overheat the parts and get warping and distortion, or even burning if you're not careful. Never focus the heat gun on one section for too long. Keep it moving at all times and use broad strokes so that you're heating up a large area. You'll see the part relax into the proper shape. Once it does, let it cool thoroughly before releasing your clamps and checking alignment. Repeat as often as necessary for a great fit. Martin.
    4 months ago by Martin555
    Forum
    Motor, speed controller
    Cheers Dogdy geezer, I think I have a good idea now of what is needed, cheep, cheerful simple about 18/24” long. I too like
    components
    gear, and will probably use their gear for this project.,,many thanks for your feedback. Cheers , Ken
    6 months ago by KenThompson


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