selecting contour

[tazbierek]

My next problem is with selecting contour, 

I tried to draw a rectangle but always making a bad selecting. 

 

I need to cut this firs pocket using contour , after that i need using slot mil, but my problem is with selecting the geometry, how is the good way to do that ?

[cncappsjames]

If this is a real world part you're going to cut, the best way to do this section of the part is to stand it up like a "U" and pick the two single inside top edges as a contour, set your entry and exit values so you're out side the part when you plunge down, pick the floor for your depth. With it standing up like that, you can then get that undercut with a keyway cutter.

[tazbierek]

this is real part, I have it on rotate table. first setup i will do bores, thenrotate 90 degree and do that part.the thing is i have to do thin on this setup so XYZ have to be as shown ,  I know i can be frustrating for u guys, but i have to say again i do that part on fusion 360 and it was peace of cake. but here i have like tons of questions. Sorry for that and english again and hope for your help 

[tazbierek]

Ok guys i think i did it. i simply draw rectangle at the pocket and select it s a contour. 

idk if i have to did that but it works so it works

[#Rekd™]

Create curve on one edge and select each edge. No sense having ends that join them if using contour. 

Not sure contour is the best choice but without see the file. Is it from billet or casting ect and what (how rigid) the machine is or what the setup is.

 

 

[tazbierek]

Its casting,But thats true no sense joining them, 

Thank you again

[#Rekd™]

If you create a curve on each side you can use Lead In/Out to extend the start and the exit if using contour toolpath.