how to cut helix blade on O.D

[sunny musafir]

hello  everyone

Trying to cut  helix profile on OD, can t do it . looking for any suggestions.

if it was straight cut then I can cut on sweep option now I do no know how to cut on an angle on OD.

Attached part

[jlw™]

Are you talking about in the solid model or in a machine?

[JoshC]

10 hours ago, sunny musafir said:

hello  everyone

Trying to cut  helix profile on OD, can t do it . looking for any suggestions.

if it was straight cut then I can cut on sweep option now I do no know how to cut on an angle on OD.

Attached part

are you using a custom form tool, or a ball endmil with multiple passes to form that cut? Is this on a mill or a Lathe? Do you have a multi-axis license for mastercam?

[jlw™]

6 hours ago, JoshC said:

are you using a custom form tool, or a ball endmil with multiple passes to form that cut? Is this on a mill or a Lathe? Do you have a multi-axis license for mastercam?

a basterd file?

[crazy^millman]

Here is something I put together to see if it helps. The only thing is someone will have to download the Public Beta of 2020 to open the file.

5th Axis Helix OD Cut Mastercam 2020 file

Female Helix.

 

Male Helix:

 

Edited August 20, 2020 by crazy^millman
Pictures removed to save space

[sunny musafir]

hello everyone

I am looking to make drawing.

toolpath should be easy I am hopin.

on cad I want to make this .

[sunny musafir]

thanks for your suggestion

so far my knowledge says I can draw od & revolve to make it solid but do not know how to cut blades after that

[JoshC]

10 hours ago, sunny musafir said:

thanks for your suggestion

so far my knowledge says I can draw od & revolve to make it solid but do not know how to cut blades after that

I think Sweep Solid is your friend for this task. 

 

[JoshC]

here is an example of how i would accomplish modeling this part, keep in mind there are other ways to get this modeled too.

https://fastechincorporated-my.sharepoint.com/:v:/g/personal/joshc_fastechinc_net/Ef5O26yonCBHn2Ky8DoD_CUB--KHEi5yVtN3eveRItWyew?e=nYl33X

[crazy^millman]

On 2/28/2019 at 6:28 AM, JoshC said:

here is an example of how i would accomplish modeling this part, keep in mind there are other ways to get this modeled too.

https://fastechincorporated-my.sharepoint.com/:v:/g/personal/joshc_fastechinc_net/Ef5O26yonCBHn2Ky8DoD_CUB--KHEi5yVtN3eveRItWyew?e=nYl33X

I didn't even see that sketch the same way, but after seeing your video I could see that prospective. I used Helix and Sweep in my examples. I just added .5" spheres at the end of each Boolean Remove or Boolean add shapes.

[JoshC]

6 minutes ago, 5th Axis CGI said:

I didn't even see that sketch the same way, but after seeing your video I could see that prospective. I used Helix and Sweep in my examples. I just added .5" spheres at the end of each Boolean Remove or Boolean add shapes.

yea this is what i love about solid modeling is sometimes there is a bunch of different ways we could accomplish the same exact task, each having its own pros/cons. 

[crazy^millman]

5 minutes ago, JoshC said:

yea this is what i love about solid modeling is sometimes there is a bunch of different ways we could accomplish the same exact task, each having its own pros/cons. 

Years ago I starting teaching people who solid model in Mastercam to think of modeling from the prospective of what will the cutting tool really make. We didn't have stock models and I use to machine forgings. I would back plot the toolpaths and use the back plotted tool paths to make solids from. The part had 10 operations I would make 10 Solid Stock Models in Mastercam one by one back plotting the toolpaths saving the geometry and then doing the work of sweeping, Extruding, Male or female bodies to remove stuff. When I need a good solid to use for something on a Flight or Launch Critical parts I still make Solids per operation to analyze too. STL's are not as accurate and when people's lives are at stake I don't care how much work and effort it takes I do what I now I can trust as a process.

[sunny musafir]

thanks 5th axis CGI for your video 

I ll try