Corner Pretreatment

[killall-9]

Hi Guys,

Im using Dynamic Mill to chisel out some .375 rad corners with a .125 rad tool with no luck for pretreatment...

[Kyle F]

I have always thought of "corner pretreatment" as a way to address the 4 sharp corners on a rectangular piece of stock... I think what you're looking for is to further rough out that red colored stock?

maybe before that 1/4 endmill dynamic finish pass you're showing in the screenshot, add a remachining contour to semi-finish those tight areas?

 

embarrassingly enough I just recently figured this out, in all my old programs I would go in and manually break wireframe geometry to remachine radii lol... sometimes I surprise myself

[TFarrell9]

2 hours ago, Kyle F said:

 

embarrassingly enough I just recently figured this out, in all my old programs I would go in and manually break wireframe geometry to remachine radii lol... sometimes I surprise myself

Even better/easier than that is Dynamic Contour or Optirest.

[CNC CHRIS]

turn on "rest material"  under "stock" 

under "all previous operations" select "one other operation" and select your stock model 

[Kyle F]

25 minutes ago, TFarrell9 said:

Even better/easier than that is Dynamic Contour or Optirest.

Yes! dynamic remachine is definitely where it's at. I'll use opti-rough + rest only if the part has a lot of 3D features, cycle-time on the 2D dynamic is usually always faster vs an opti-rough (again unless you want those step-ups for 3D stuff) Even with all the opti-rough setting tips n tricks

 

EDIT: I just now am seeing OP's second screen shot... I'll have to mess with it, seems as though I am wrong about pretreatment only for O.D. corners