square pegs in round holes

AlanT · September 23, 2014

The backgound to this topic can be read here:

Basically a fellow forumite sent me some right-angled drives for me to try to fix them.

As is often the case the flexible wire stubs were fractured.

I managed to make some new stubs based on 3mm flexible wire from a speedo drive cable.

This wire was sent in by another fellow forumite!

BUT

I think this is a far better way to fix these.

First the square peg, made from 3mm square "key-steel".

A piece of 1/8in key-steel is a perfect sliding fit in the gear-box take-off. So using 3mm generates a little clearance.

Now the converter to fit the round hole in the bevel gear:

Goes together like this:

The peg is retained in the converter by an O-ring, you can just see this , its blue, by looking down the hole:

If you ever break this peg, well just push in a new piece of key-steel!

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