Form tool stepover and high feed geometry stock model calculation?

Form tool stepover and high feed geometry stock model calculation?

johnc4668
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Form tool stepover and high feed geometry stock model calculation?

johnc4668
Advocate
Advocate

Fellas,

 

Working on updating and testing hfm geometry tool shapes within powermill. I can get the cad files online and make a form tool out of them for an exact copy of what we use but how do i control the stepover on a roughing tool path with a form tool? It seems pm uses its own stepover and ignores the user input with the geometry given. Maybe theres a better way to do this? We are trying to cut stock more accurately with these hfm tool shapes because sometimes it leaves more material when we just call the cutter a tip radiused tool. See pics, thanks!

 

2022-06-16_8-59-26.png2022-06-16_9-01-04.png

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Message 2 of 4

LasseFred
Collaborator
Collaborator
Accepted solution

You have remove cusp on.

 

Se the picture:

and this link: https://help.autodesk.com/view/PWRM/2022/ENU/?guid=GUID-17FA4341-C0C8-4FCF-9A27-B14C8680BFAA

REMOVE CUSP.PNG

______________________
Lasse F.
Message 3 of 4

johnc4668
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Advocate

Ha! That was it! I was just using my roughing toolpath macro and it had it set to on. Normally with it on it doesnt effect it that much with a tip radiused tool but with a form tool its quite drastic. Thank you!

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Message 4 of 4

BS_agru
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Advocate

But be extremely careful with "remove crusp" when you are using highfeed cutters
With a too big stepover, small "islands" will form that can destroy your tool...

 

BS_agru_0-1655903795582.png

 

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