Elna sewing machine bobbin extractor

Bobbin extractor to suit Elna sewing machines (star series, air electronic series, Lotus series, Contessa, etc).
Original spares are no longer available.
Note the originals have a thin shaft that the spring screws over. This is where they always break. As a result, I have omitted this shaft, and replaced it with an M4 threaded hole to accept an M4 grub screw (6-8mm long). The spring then threads onto the grub screw.

To repair/replace the bobbin extractor, you need to remove the top cover of the machine (2 screws), and if it has a handle such as on the air electronic or lotus machines, also remove the clip holding the handle onto its shaft.
On the top of the bobbin extractor tube (near the light) there is a screw that screws into the top end of the extractor spring. If you are unsure which one it is, try lifting it up: the screw extractor crew will lift up under spring tension (if the old extractor is still attached), or without tension if it has snapped off as they usually do.
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