Brett Flemming Cutting and Threading a Fork

part-1-threading-a-fork

Parting off to ensure square machined surface cut. Also a small 30° chamfer is added before parting cut is complete.

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Once parted, the fork lands in terry cloth “nest”.

part-3-threading-a-fork

Fork adjusted in special holder for zero runout at crown race. Single point threading tool squared to work with threading gage.

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One of several threading passes.

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Threading complete! 

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Test fit of adjusting cone.

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