1ST time using opti rough toolpath

[Roger]

This is the 1st time for me using optirough toolpath. Please advice to any changes you would use on this part, feeds, step over, sfm, etc. Material is 304 SS, I'm going to be using Guhrings .75" RF 100 diver endmill (1.5" flute length).

RRR.mcx-9

[So not a Guru]

This is the 1st time for me using optirough toolpath. Please advice to any changes you would use on this part, feeds, step over, sfm, etc. Material is 304 SS, I'm going to be using Guhrings .75" RF 100 diver endmill (1.5" flute length).

We haven't ran any 304 here, but we use these paths on 13-8PH & 15-5PH a lot. We usually keep our stepover between 5% & 10% and the minimum radius to 2.5%. They are great material removal paths. Is this a CAT40 spindle?

[Roger]

Yes, CAT40 Haas vf-5 ss.

[JoshC]

If you go to this link

http://www.emastercam.com/board/topic/67968-important-topics-please-read-before-posting/ and look for a link to "Dynamic Mill Database" you will find a whole lot of speeds and feeds that other users have used for various Materials and tooling.

Speeds and feeds​ have a lot to do with fixturing and workpiece rigidity but your tool manufacturer can typically also give recommendations, dynamic uses technology know as Trochoidal milling and if you specify that you are cutting using this process most tooling reps will be able to give you some accurate recommended feeds and speeds and there are also calculators on the market such as G-Wizard that can also calculate for Dynamic or Trochoidal motion. Hope this helps

[Roger]

JoshC, I know all about (before posting....) And have gone to the "Dynamic Mill Database", And have reviewed other posts on this subject. Thanks for your help.

[jlw™]

Whether you use them or not the Helical solutions calc is always good for me.

 

There is also a forum member who created a calculator. HSMAdvosor IIRC but I haven't used it.

[Roger]

Just got through running the parts, see attached MCX9 file for parameters. I think this is still on the light side, will continue to experiment with these

high speed tool paths. I also downloaded the HSM Advisor, and will continue to do my research.

RRR-2.mcx-9