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    Model Boats Website
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    Forum
    EeZeBilts From Keil Kraft
    ".... I have also been looking on utube at DIY CNC Machines using old DVD
    Drive
    s and an Arduino board...." You can probably make a machine for nothing out of scrap if you know what you're doing - but I wouldn't advise a beginner to learn that way! The issue is getting the precision of movement together with enough stiffness to be able to apply adequate force when cutting and not have the structure bend. For modelling, we have an advantage in that many of our materials are thin and easy to cut, compared to typical professional requirements. A common cutting tool is a Dremel - which we often have, and you can see that a model boat motor can easily cut balsa - and probably light ply...
    5 years ago by DodgyGeezer
    Forum
    EeZeBilts From Keil Kraft
    Hi DG, I have seen your thread on your CNC Machine and I have also been looking on utube at DIY CNC Machines using old DVD
    Drive
    s and an Arduino board. I will have to do a lot more research in to it as it is a good way to cut bits out for model making. Martin555.
    5 years ago by Martin555
    Forum
    Air Sea Rescue Launch 123
    Doug, yes I intend to reduce the rudder throw as it is to severe. However when I ran the boat in the video I had the rudder control on the Tx back to front which rather complicated matters. This is now reset. The speed controller is an Mtroniks viper marine 15 amp unit suitable for up to 12 volts. Unfortunately the motor is the original 6 volt jumbo 540 from the 1970s. I am running it on a 7.2 volt Nimh pack. I contacted Mtroniks and they said if the voltage to the ESC drops below 6 volts then the BEC will not work. I think under full load the voltage may drop to 6 volts but when I have checked the battery voltage after the problem occurs it is at 6.7 volts. Anyway putting the receiver pack in has solved the problem because when the main
    Drive
    battery has run down now the boat speed slows but control is maintained.
    5 years ago by Will-I-Am


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