Thread Design Calculator

Mech. Designer Guys,

Does anyone know of a thread designer software/calculator that willease in designing custom stub acme, acme thread forms? Im in theoilfield downhole tools industry and we have many odd ball stubacme,acme thread sizes. I have found some onilne software, but theyonly give standard sizes, I need to be able to input a custom ODthread size.

Any help would be appericated,


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