Need to figure out how to Create an Entry point/Path in Lathe

[Chaotic5555]

I'm currently working on an operation where I need to use a groove tool that must enter the original diameter offset from the tool's center line.  In order to do this I have been trying to make a tool path using the geometry to lead into the hole , cut the groove and then lead out of the same hole but I haven't had any luck in the past few days or been able to make much progress.  I have uploaded a copy of the program with a Groove operation that shows what I am trying to cut out.  I also have the stock model there if needed in the layers option.  When I was messing around with it I did notice a lead in and lead out line but I couldn't really tell how to incorporate this properly or configure it how I needed (Mainly only gave me errors).    Motor Housing Turning Operation.mcam

[Orvie]

Motor Housing Turning Operation ojs.mcam

[Chaotic5555]

24 minutes ago, Orvie said:

Motor Housing Turning Operation ojs.mcam

Wow this is exactly what I was trying to do!! I've been trying to decipher it for a few minutes now but I'm having a hard time seeing it, what exactly did you do to add that in? Thank you!

[Orvie]

I just chained the actual groove and used reference points to control entry & exit.

[crazy^millman]

Also only use Finish. You cannot rough a .155 slot with a .155 tool. You can cheat and call it a .154 tool and then leave .0002 on the walls and rough it. Your slot will then be .156, but it should come out that size anyway when you take a to size tool and cut a slot when grooving it almost never stays exactly that size.