Thanks for the link! I had a look at it but it seems like it would be too short for where the existing allen key screw is on my scroll saw. But i now have another idea for making my own adapters rather than drilling holes in my saw and possibly weakening it!

But if you refer to the attached photos i do think that my initial idea would work.....

Attachment 179589
Attachment 179590
Attachment 179591
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Attachment 179593


Any more thoughts?