Sunday, 25 January 2026

Turning and Turning

Screw you Caterham!

Part of the rear suspension of my Caterham has gone rusty so I've removed it, wire brushed it and repainted it. To refit it I needed a new pair of nylon washers. They're an odd size 17.5mm ID. 1mm thick. The good news was that these washers were easily available directly from Caterham. The bad news was that, with shipping, these two flimsy washers would have cost £10.

As It happens I have a short length of nylon bar stock, so, out of spite, I decided to make the replacements myself. I drilled and bored out the centre, faced off the stock, and then parted off two very short lengths. The project was a great success, other than the huge amount of material wasted as swarf, the surface finish, the dimensional tolerances, and the massive burr I raised when the parting cut met the centre bore.

Richard "But at what cost" B  

3 comments:

  1. Being very pedantic, I find it annoying when people refer to making something on a lathe as "lathing" rather than the correct term of turning (not to mention that a lathe can be used for many other machining operations). To prove my point I started trying to think of other tools that have a verb for their use and was immediately stumped. Hammer, saw, punch, drill, plane, brush. Lathe it is then

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  2. I think you already hit the nail on the head. A lathe is for turning, facing, boring and parting. It's weird that just one of them has become the general term for lathe use.

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  3. SPADE! you don't got out and spade the garden!

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