Enter and exit in the same location

[shoang (Sonny)]

Hi, I’m looking to create a key hold so I can hang up some stuff. I want this to be a repeater process so I wanted to CNC it. I’m trying to figure out a way to create a operation to go into the mater Z depth and travel Y distance and go back to the original starting location and exit.

Is it possible to do this with CC or do I need to use Fusion360?

Thanks

[WillAdams (William Adams (Carbide 3D))]

Draw a polyline with two legs and 3 nodes:

and then drag the two open nodes to close to the desired entry point (they can’t be on top of each other or the path will close):

then use a no offset toolpath:

[themillertree (James H. Miller)]

I actually use 3 perpendicular lines to create a “U”. The line that connects the two parallel lines is only 0.0005".

[CrookedWoodTex (Tex)]

I’m confused. I think the title of this thread is doing it to me.

What is it that is trying to be accomplished? A keyhole cut?

[shoang (Sonny)]

What William suggested works. @CrookedWoodTex, yes, I want to do a key hole but I couldn’t get the bit to enter and exit the board at the same location. @themillertree, that should also work too!

[CrookedWoodTex (Tex)]

I suppose the assumption here is that you are using a special “keyhole cutter” to make the actual cut.