Removing fine burrs

[Steve CrowParticipant @stevecrow46066]

I've cut a number of small clock wheels.

I find that when I try to clean up/polish the face of the wheel, whatever method I use, it throws up very fine burrs on the teeth.

I've tried adhesive lapping film stuck to glass (a method I use for sharpening my leather knives) and fine wet and dry but I still get a tiny burr.

Has anyone any suggestions for a method for this?

I keep hearing about Carat paper used by jewellers. Is that a solution?

George Daniels recommends flattened Water of Ayr stone under running water. Good luck to anybody trying to get that!

Cheers,

Steve

Edited By Steve Crow on 15/08/2022 18:16:37

[Steve CrowParticipant @stevecrow46066]

[John HaineParticipant @johnhaine32865]

Running water or the stone?

I use a Noga deburrer and a triangular scraper.

[Iain DownsParticipant @iaindowns78295]

I believe (though only through what I've read), that the correct approach is some pegwood and fine grinding paste.

Iain

[Martin KyteParticipant @martinkyte99762]

A good modern substitute for Water of Ayr stone, now the mine has closed, is a Shah stone.

Personally I would not worry over much. The burrs will disappear with first meshing with the pinions. Of course if you are making Daniels grade watches that may be different.

regards Martin

[bernard towersParticipant @bernardtowers37738]

Try tumbling , there are various mediums for different materials and degrees of aggression

[Neil LickfoldParticipant @neillickfold44316]

The very light grey scotchbrite pads, are very good for removing fine burs on all sorts of things, brass, steel, Al, copper etc.

[Martin KyteParticipant @martinkyte99762]

What grit are you going down to when you are finishing. The wheels you show are no where near polished. You need to go to at least 5 micron or 1200 grit and then some. Finish of with Autosol.

regards Martin

[Steve CrowParticipant @stevecrow46066]

No, I haven't started on these wheels yet, they are straight from the milling machine.

I have tried beyond 1200 but a tiny burr remains on the teeth.

[Steve CrowParticipant @stevecrow46066]

Posted by Martin Kyte on 15/08/2022 19:14:37:

Personally I would not worry over much. The burrs will disappear with first meshing with the pinions. Of course if you are making Daniels grade watches that may be different.

regards Martin

Thanks Martin. When I've finished making my depthing tool, I'll give them a good run round with a pinion and see if that does the trick.

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