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I didn't say I wanted to invent a new spline Kelly. What I said was that I'm 'looking for an element of patentable novelty'. In this instance, using what is already out there in spades reduces my...

As I hinted at in my original post, but no one seemed to notice, a standard would be fine if I were not looking for an element of patentable novelty...

JB your direct approach is far from...

Thank you very much JB. Very enlightening.

The measure of turque we are seeing is from an instrument running through the whole thing's centre line and is displayed in Nm. Rather than 'pester you',...

JBoggs many many thanks. That makes so much sense and is very enlightening.

We are using a meter placed inline with the centre spindle, so would I be right in presuming the measured force is...

This image shows how the adapter fits over the spindle
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This image is a modification and has my question.
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Sorry posted pre-edited image :bash:

Kelly

The internal stainless spindle has an OD of 5.6mm but it has an M3.5 threaded hole in it. The splines on that spindle are just 0.4mm deep in their centre and 1.33mm wide.

The OD of the...

Hi Kelly.
Under 10 Newton's. A screw thread on the stainless centre fails at 7.1N
Hope that helps

Hello everyone.

Unfortunately, I am an 'instinctive' inventor. As such I fully realise just how much I do not know. That said, invariably 'things' work and are reliable.

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This image is of...