This is not really intended as a downloadable file although you are welcome to see what you can do with it - if you have a 75mm roll of sticky tape that needs a spool this could be for you.

If you are going to print it you need to know that the centre boss is tapered from 25.5mm to 26.8mm - it makes no sense but that's how the original axle worked.

Yes we could have thrown it out and bought another one.  It's survived like this for around fifty years since it was rescued from a discard pile at my father's office.   There's no sentimental attachment but it's a tool whose time has not yet come, and at the cost of a few grams of filament it can live again.

Like my camping stools, a repair will yield much greater satisfaction than the purchase of a new object - you will be reminded of your efforts every time you use it!

Thanks for listening!