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Go find an an old bulk magnetic tape eraser. This works well. I used it to degaus the roll bar on and RV-8.
Carl |
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I thought the rudder cable needed to go down the middle, between the two legs of the soldering gun. Does it just need to be near? Perhaps something like this might work? https://frys.com/search?search_type=...toreName=false Also - I will definitely pull the magnetometer out before I do this. Do I need to pull other stuff - GSA28 servos, transponder, etc - that is mounted aft? Thanks |
Solder gun
That's where the field is. You can also make a bigger loop with #12 Rolex. Strip a piece and insert the ends in the solder gun screw clamps.
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$15 |
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The Thorsen coil linked earlier is simply multiple turns of heavy gauge 'magnet' wire (enamel insulation), wrapped with tape, with an in-line on-off switch. The original use was degaussing picture tubes (CRT). Normal use is to hold the coil flat, parallel to the face of the CRT, moving it in a spiraling circular motion. (Plenty of utube videos on how to use one.)The field is strongest closest to the coil; its strength drops rapidly as you move away, just like a regular magnet.
The bulk tape eraser would be my 1st choice, if available, but the methods I described are still important, to avoid re-magnetizing the material. Charlie |
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Realistic - that is the one.
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Use a pocket magnetic compass to wave over the part and see it is magnetized, then put it on a wood or plastic table and wave the tool in a circular motion over the top 5-8", working down to the end of a cable. Continue the circular motion while with drawing the tool to about 3 feet then turn it off. Recheck the part with the compass. I took my rudder cables and pulled out about 3 feet to do them in free air. The stretching and swaging process imparts some magnetism. Get some instructions for the tool as it has a limited duty cycle. |
Thanks.
I'm gonna try the soldering gun first, as I have one of those. Hopefully I will be able to do it in place. I also found (based on a suggestion from the aeroelectric list) a phone app that accesses the magnetometer in the iphone. Messing around here at the house with magnets, etc it seems to be pretty sensitive. |
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