HELP: winding a small coil

Hello

I have a small coil whose wire is cut somewhere in the interior. I believe that to fix it I should unwind the copper wire and wind again the coil with new wire.

I have measured the wire diameter, and it seems to be about 0.07 mm. I have purchased enough 0.071 mm wire (45 SWG) and am ready for everything.

And here is where I would specially acknowledge any assistance: Do you have any hints on how to wind so small a coil, with so thin a wire? Any recommendation will be highly appreciated).

Thanks and best regards.

Jesus, in Spain jbenajesATmotDOTupvDOTes

Reply to
J.B.
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Hello

I have a small coil whose wire is cut somewhere in the interior. I believe that to fix it I should unwind the copper wire and wind again the coil with new wire.

I have measured the wire diameter, and it seems to be about 0.07 mm. I have purchased enough 0.071 mm wire (45 SWG) and am ready for everything.

And here is where I would specially acknowledge any assistance: Do you have any hints on how to wind so small a coil, with so thin a wire? Any recommendation will be highly appreciated).

Thanks and best regards.

Jesus, in Spain jbenajesATmotDOTupvDOTes

Reply to
J.B.
041116 0718 - J.B. posted:

I can't see your coil form so this would be a suggestion. Use a drill motor with a trigger control and fasten it in a vise or use a chain vise grip to fasten it to a workbench somehow. Most coil forms have a hollow, and you can fit a long screw -- maybe 1/4-20 x 4" -- into the hollow and fasten it with some fender washers and a nut. You can fit the beginning of the wire through a hole in the form and then start the motor turning slowly and feed the wire with your other hand carefully onto the form. This is a tedious process at best, but you can make the coil look professional with careful attention to feeding the wire onto the form. Once you get going you can even up the speed of the motor. Someone could even work the motor while you feed the wire onto the form, and with careful attention by both of you the job could be completed quite competently.

Reply to
indago

sometimes it is helpful to apply clear nail polish or a thin lacquer after each layer. let dry then proceed. this holds the fine wire in place for the next layer

Reply to
TimPerry

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