Build a Magneto Magnetizer, Gingery, David J, ISBN Build a Magneto Magnetizer Many people collect and restore old engines and in the process discover that the old iron magnets in the magneto. Dave will show you how a magneto works, how to test one, how the magnetizer works and will show you in detail how to build one. He’ll give you all the tricks on .

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Mount the recharger on a wooden base large enough to also hold a single pole switch and a binding post. He has already started building one.

The Square Deal Subscription Program is designed as a paperless transaction with automatic renewals at a preferred low rate. My suggestion is to find someone who has the equipment and pay them to do it for you.

This arc is exactly what is wanted across ignitor points with battery and coil ignition, but in a magneto charger, the arc could lead to switch failure, insulation breakdown or electric shock. Chargers have been described in the following issues: In order to navigate out of this carousel please use your heading hlw key to navigate to the next or previous heading.

If you have a source of scrap iron, machine shop facilities and can come up with some surplus magnet wire, the costs can be drastically reduced.

This will not recharge newer alnico, samarium, and similar alloy magnets since these need an enormous magnetic impulse beyond the capabilities of this machine. Learn more about Amazon Prime. Hand truck after modification- ready for mounting the charger. Final assembly Now things start to get heavy, so it’s good to build the charger onto a two wheel hand truck or other cart.

Show All Member Profiles. Eventually some scrambling will occur, but try to keep it to a minimum. Although specifically designed to recharge magnets used in engine magnetos, this device can be used for producing or restoring magnets in a great variety of shapes and sizes so long as they are made of alloy steels.


The design The main criteria for any charger design is core area, number of wire turns, and amount of current flowing through the coils. This is important, because there have been cases where an enclosed switch has had the contacts stick closed even though it indicated open.

Wico AX or PR with top cover removed-ready for charging. Be sure to take advantage of the Square Deal Subscription Program. Building a Gas Fired Crucible Furnace. This is exactly the information and specifications that I have been searching for. This charger uses 3-inch diameter soft iron core pieces 6 inches long, each wound with approximately turns of 10 gauge copper magnet wire.

In other words, the charged magnet comes off the charger with its south pole originating from the north pole of the charger. Additional time does nothing but drain the battery.

How To Build a Magneto Magnetizer

How to Restore Tractor Magnetos. You can build this machine quickly and inexpensively. Cut manila folder into a strip, wind and cement it to the core between insulating washers. The other pole should attract the south seeking needle and should be marked ‘S’. All contacting surfaces should be absolutely flat and square so that there will be good metalic contact over the entire surfaces.

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We bought the book, did research and actually built one. I should have magnsto pasted in the link. The ammeter is connected in series with the switch and mounted to the wood base attached to the hand truck.


Build a Magneto Magnetizer – BritBike Forum

I shouldn’t have pasted in all the blah-blah text from the web site. Detail of the insulating end washers for the coils. The use of magnet wire is important because wire with thick insulation can’t be densely packed. I believe that there are forum rules prohibiting this kind of advertizing so maybe a note to the moderator to get this now would be in order The core ends and hw surface of the bottom bar should be faced or ground flat to minimize the air gap losses.

Withoutabox Submit to Film Festivals. To protect the coils from damage, I wound several strips of fiberglass cloth and string over the entire coil and painted them with polyester resin.

I used C steel for all components in the magnetic path. Size and expense make the magnego most practical for club or group use. If you work on magnetos and want to do it right you need to be able to re-magnetize the rotors.

Building a heavy duty magnet charger

Additional shaped pole pieces are useful for charging flywheels, rotors, etc. Testing the charger Once the unit is wired according to the wiring diagram, it’s time to test it.

A view of the finished charger. After most of the 20 pounds is wound, the winding should be planned so the wire will end near the terminal end of the coil. He’ll give you all the tricks on building the base, winding the coils, building and testing the power supply, and, of course, on using the machine. Note location of auxiliary pole pieces.

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