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Πιο καλά είναι να βάλουμε και ένα προστατευτικο έστω πλαστική φιάλη στο μοτέρ με τρύπες για να μην ζεσταίνετε, αν το κάνουμε πολύ χρήση , πάντα χρειάζεται προσοχή, και φοράμε γυαλιά
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Grinder wheels are usualy the most reliable electric bench tools in a workshop, but sometimes (rarely....) they may not work or you don't even have a grinder wheel, and you need to have one...... well now you can make one using the motor from a washing machine, the axle of a bicycle wheel and a piece of garden hose.
What you need to do is secure the motor on a wooden base, find a way to secure the rubber hose on the motor axle and on the bike axle, and then secure the bike axle on a separate piece of wood. This way, when you tighten up the grinder wheel on the other side of the bike axle, it will be far enough to allow you to use it from both sides.
And additionally, the whole setup will be secured on a wooden base, which will allow you to place it wherever you want.
It is important to find the proper hight and secure the bike axle, so that both axles will be at the same level, both horizontaly and verticaly. Small deviations aren't important, as the rubber hose will act as a universal joint and take up any small agles when turning.
If you secure the hose with metal clamps, like I do, remember to place the screws of the clamps in diametricaly opposed positions, so that the opposed spinning masses will cancel each other's centrifugal forces, and you won't have any vibrations.
The electric connections on the motor are also simple. This is not a brushed motor, and is made to use a capacitor to start spinning, but you can use it without one. You simply have to start it by hand. Once it's got power, you can simply give it a push, and it will start spinning.
Remember to spin it only counterclockwise, as the securing screw is fastened clockwise. If you spin the wheel clockwise, eventualy it will undo the securing screw, and the wheel will fly off and start rolling on it's own.
And litteraly, this wheel is a spinning mass, and it works as a fly wheel, so only spin it counterclockwhise.
IMPORTANT:
When connecting the wires and the switch and powering it up, find out which wire is the live wire, and connect it to the switch, so that the switch will wontrol the live wire. We're talking about single phase 220 AC power, so the live wire needs to stop at the switch. If you connect the wires the other way around, the live wire will end up on the motor, and the neutral will be at the switch. Not so safe.
Alternatively, you can use a dual switch, which can supply both Live AND Neutral wires to the motor, and you won't have to search for anything.
For added safety, you can find a metal part on the motor housing, and secure a Yellow/Green wire, and connect that wire to the ground contact on the power outlet. This way the motor will also be grounded, complying to regulations and providing safety for the user.
You can add a protective cover to that spinning joint, so that you won't have any problems with that too, and also, if you want, you can add a protective cover on the whole motor and joint assembly. Just make sure there are openings to let the air circulate to cool the motor.
And always use the proper tools, gloves and goggles.
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