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**General Mach Discussion / NFS turn metric values for x axis**

« **on:**July 16, 2015, 04:08:16 AM »

Hello,

Ok, call me an idiot but I am having issues setting up values for metric threading in nfs turn wizard, my big problem is understanding what to use in the x start and x end fields, because if I follow the machinest handbook on what I thought to use I end up with something less than usable for an external thread. I am trying to make a 8mm 1.25 pitch thread using the wizard, starting with an 8mm rod and I convert all my values to inch and tpi of which is 20.32 and I get the proper pitch measured by thread gauge just not the right diameter for test fit. I am either too large or too small by just enough to not be usable, in the ballpark. I am using diameter mode.

Any help would be great

Ok, call me an idiot but I am having issues setting up values for metric threading in nfs turn wizard, my big problem is understanding what to use in the x start and x end fields, because if I follow the machinest handbook on what I thought to use I end up with something less than usable for an external thread. I am trying to make a 8mm 1.25 pitch thread using the wizard, starting with an 8mm rod and I convert all my values to inch and tpi of which is 20.32 and I get the proper pitch measured by thread gauge just not the right diameter for test fit. I am either too large or too small by just enough to not be usable, in the ballpark. I am using diameter mode.

Any help would be great