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HomeCNC LatheHow to Cut Single Point Taper Pipe Threads on a CNC Lathe

How to Cut Single Point Taper Pipe Threads on a CNC Lathe


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Pipe threading 101. Learn how to cut single point taper pipe threads on a CNC lathe.

NWTC’s Matt Schmelzer will go through the programming and specifications before loading the programming and cutting the pipe threads. To complete this lesson you will need the Machinery’s Handbook, scientific calculator and pipe thread gauge to measure the final threads.

00:00 Introduction
01:00 Thread specifications. Use Machinery’s handbooks to find necessary dimensions to program the threads ((https://amzn.to/3BOSJdU)
03:30 Specifications demonstrated in drawings.
06:00 Dig deeper into the implications of those specifications.
07:02 Canned cycles breakdown
09:55 G-code for the application
11:53 Program is loaded in the machine, let’s make some threads!
12:15 Metal cutting!
12:40 How to use a national pipe tapered gauge to measure the threads.

Have any questions about single point tapered pipe threads? Or some tips and tricks for cutting these threads? Drop them in the comments below!

Matt Schmelzer is the CNC instructor at Northeast Wisconsin Technical College. To learn more about the manufacturing programs at Northeast Wisconsin Technical College visit

Follow Matt’s machining program on Instagram here: https://www.instagram.com/nwtc_cnc_machine_tool/

Stay tuned for more videos!

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