Example I gave you is only for the spiral, before that you need to finish the bore and the circular grooves.

oil_groove_2023.mcam

oil_groove.mcam

I've successfully used custom thread toolpath to machine these using a smaller full radius grooving insert. You can even create a small edge break in the contour between bore and groove .

Make a plane form solid face, program a simple toolpath like a drill, contour or face, set wcs to top and the tool and construction plane to the newly created one and post, you will see the angles in the posted program, you can use a generic 5 axis post if your machine is not 5 axis.

Yup, scrapped a part also because of this pitch glitch.

"If you really want even cuts all the way in......subtract your minor from your major, divide it by 2(per side distance) then subtract your desired finish cut amount and dived the remaining by how many cuts you want......that value would then be your step over...." And they say: Mastercam Mill delivers fast, easy, industry-proven NC programming that lets you make the most of your machines. The Mill suite of CAD/CAM tools is focused on delivering speed and efficiency to your shop.

Threaded plugs DIN 906 are used to close bore holes with cylindrical internal thread.

it is scheduled for general availability on July 29, 2015

Create as many instances you need in one revolution around the cylinder and after that use transform to translate as many times you want

Only with one transform op. 1 IN X 60 DEG HELP V2.mcx-8

I have managed to move the ribbon bar to the bottom of the screen. Here is a saved workspace http://s000.tinyupload.com/index.php?file_id=98138400428268445351