How to Hand Program a Bushing on a CNC Lathe - PART 7 Bush Program Finale

April 28, 2023 10:11 am

In the final part of the bush programming series, Marc from G-Code Tutor looks at ways we can speed up the bush program we have written for mass production.

The first speed-up technique Marc talks about is to use a U drill instead of a center drill and peck drill cycle. By using U drills we can even remove the rough bore operations when machining our part.

Next, Marc talks about using Variables if we have a family of similar parts. This can speed up the programming process by reusing the same program with variables in place of dimensions.

Finally, Marc looks at using a sub-program instead of subroutines so we can reuse the profile of our part in other programs.

For more tricks and tips with g-code programming, head over to

Check out the previous video with a similar program:

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