surface rough pocket machining

[David Colin]

Hi all!

 

I'm just new to level 3 and i have some probs with pocket machining (surface). This is a pretty simple cylinder with fillets at the bottom end. I'd like to machine flat zone at the bottom but i can't do something clean... tool seems to zigzag at this depth.

 

File: pocket and fillet on cadcam's FTP

 

Thanks for all your helps

[mold100]

Is finish boundry set? And also there are a # of differant paths to use I for round stuff use the true spiral with a heliical lead in.

 

I havent looked at your file yet.

[Surface]

David, I looked at your file and see where you are getting some strange tool movement. I think this is caused by the tolerance of the surface and is exagerated by the flat bottom. I re-created the surfaces (revolved) and my toolpath looks fine. Often when I get some unusual tool movement, if I leave just the smallest amount of material (stock to leave), or in this case, by adjusting the maximum depth, it will fix the problem.

[David Colin]

Ok, thanks all.

I finally fixed it by re-creating surfaces (tangents fillets were apparently the prob so i made a spline for this 2 arcs then revolved it) and it s much better. However, really weird results sometimes with Z-depth cut (horizontal zone and flats). I think multisurface machining requires many experimentations and tricks to make toolpath just as you want they look like.

[mold100]

quote:

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I think multisurface machining requires many experimentations and tricks to make toolpath just as you want they look like.

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Takes time and dont be afraid to try differant paths and options there is always more than 1 way to do something, Practice and when you do something you really liked how it works save in another folder to keep as referance.