Threadmill ANPT with NPTF threadmill ???

[RandleXX]

A question for you Aerospace guys. Do you know if an internal 1/4-18 ANPT tapered pipe thread form can be machined with a 1/4-18 NPTF threadmill?? I have been digging through the specs and cannot find any differences in the two thread forms..

 

 

Any help would be great..

 

Thanks.

[B. Rad]

the only place I could find with ANPT and NPTF is at www.hemccogages.com they seem to be the same taper and thread? http://hemcogages.com/pdf/page14.pdf

[B. Rad]

sorry drop a "c" www.hemcogages.com

[RandleXX]

Thanks B.Rad,

 

From everything I have found so far I can just cut with an NPT and gauge with an ANPT. If that makes sense..

 

 

I sure like X4's new threadmilling dialog. It's layed out well and very easy to use when threadmilling tapered threads where a conical helix is needed.

[B. Rad]

Randle,

Do you make your threadmill geometry or import it from a tool manufacturer or other resource.the reason I am asking is that I usually draw theprofile on a level and then define the tool shape with the geometry from that level. Is there some place that I can get thread mills

already defined for Mastercam?

Thanks,

Brad

[ReDEyZZ]

quote:

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Is there some place that I can get thread mills

already defined for Mastercam?

---

Not that I know of, but you don't need to define them, just specify the Dia of threadmill(use a standard endmill for tool data), Threads per inch, and how many teeth are being used in the parameters.

[Ron Branch @ Verisurf]

Look on the FTP I have put up a bunch of tools I have made from threadmills to port tool and etc...

 

HTH

[RandleXX]

I dont make custom geometry for threadmills. I just use a dia. Verify is not 100% effective this way, but I dont have time to draw threads for every tool.

[B. Rad]

Thanks,

I have made geometry in the past so that I could see what was going on in verify, plus it looks cool for the dog and pony shows when the boss brings a tour through.I am going to use just a tool with righ dia. from now on.