Building the Minimag

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Bogstandard:
Sorry this final post has taken so long, I had done a little bit too much , so I just took a nice steady rest.

The plate that covers the rotor was made to drawings, and as you can see, it had to have a big hole in it to give the rotor somewhere to stick out into. I still thought it wasn't really swarf proof, so I turned up a disc with a very shallow spigot on it to fit into the hole and duly soft soldered it in.

Unfortunately, I had to a bit of bling as well. So my trademark of concentric circles and a bit of playing about with my latest digital toy, my rotary table, I came up with this.

The cable strain reliefs were made and fitted, just to stop the cable from flopping about all over the place due to vibration, and maybe later on causing a breakdown due to fracturing of the inner strands.

The test rig was then made up and the Minimag given a turning over. I tried to get a vid of it showing the sparks on the plug, but underneath the lights you couldn't see them hardly at all, and in the pitch black my camera wouldn't work, so my word will have to do.

So the unit has been built and tested, I will just have to wait until my big engine is built to see if it works OK on that.

I'm sorry I can't go into more detail, but this post has over run by over a week, so I must now get back to the flamelicker project, otherwise that will end up in a box somewhere.

I hope you have enjoyed the journey.

Bogs

John Stevenson:
Grab hold of the plug lead, give it a whirl and get Mo to get a video of you dancing about.

Unless you do this we won't believe you :poke:

John S.

NickG:
:lol: You should have put a disclaimer on there John S in case bogs tries it and it all goes wrong! :palm:

HS93:
Tie a chew stick to the handle and bandit will turn it for you, that way you can hold the plug and camera :lol: :lol:

:worthless:

:ddb: :ddb: peter :ddb: :ddb:

madjackghengis:
Great close to a fine build log, your bit of "bling" looks good, and I'm willing to take your word on the spark, at the same time, I will echo John S.'s comments, and Nick's as well. Is it possible for you to extrapolate some on how you found the "sweet spot" to set the points break at, and comment on the apparent lack of a condensor? I have long assumed the condensor for these modern maggies with electronic control, are embedded in that part of the magneto, but that has been an assumption, because I didn't want to tear apart a working magneto and find out. All the other magnetos I've worked on have had a condensor, and a bad one will definitely disable a working magneto. I would also say your test rig for the magneto is very good and something I will have to emulate, not having at least three hands myself. Thanks much for this very clear presentation. :nrocks: :beer: cheers, mad jack

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