Can't create radius on back of slot on a shaft

[ian.stanyon]

Help customer has decided that the inside of slots going around O/D of shaft should have a .3mm radius. I am unable to create a toolpath that will work. I have a 4mm lollipop cutter to use and it is going on a 4axis Haas 

[ilan1204]

can you upload your file that includes the model?

[ian.stanyon]

file should be attached now. thank you 

[ian.stanyon]

   sorry hopefully should be here now

[ilan1204]

i have tried for above 30 minutes but could not get anything working correctly. sorry

[ian.stanyon]

no problem, thanks for trying, wish fusion would have better toolpaths for back deburring would be very handy

[g_bergwerf]

Hi ian.stanyon,

I think I've figured out a solution to your problem.

I got it to work by using the blend toolpath, and more specifically by setting 'stepover calculation' to 'on surface' on the passes tab.

I've attached your model with working toolpaths.

The toolpaths might look a little glitchy, but I think that's just due to the fillets not ending at a consistent angle due to them being in an inside radius.

that makes it so the tool can reach a variable amount of the fillet depending on the position.

I hope that makes sense, and I hope my solution helps you.

-Gerrit-Jan

[ilan1204]

looks good!