Finish contour or Rough contour

[Hosseinkhani]

Hello

What differences are there between Finish contouring and Rough contouring?

Thanks for your help.

[DavidB]

I always use Finish Contour only because I did a Rough Contour once and it gouged,same toolpath as a Finish Contour did not gouge.I think the Finish contour just uses tighter maths.

 

[Mike Whitten CAD/CAM Contractors]

This is a good question, I would like to know the exact difference myself.

 

DavidB. this is what I heard also. I have never seen any reference to the difference between the two in the help though.

 

Thanks

[TREV]

good day,

the way i have been told is the only diff between the 2 is a visual to see in your op manager.it is there so if you set up your op defaults you could always have the rough contour leave say .01 and a step down of say .02. therefore there would be no need to alter all your parameters.

hth,if i have been mis informed some one let me know. cnc you out there?

trevor

[Mike Whitten CAD/CAM Contractors]

This makes sense because the help never makes any reference about them being different.

 

Thanks

[TheePres]

Hope to see in future version, wear compensation with lead-in/lead-out on Finish Contour.

[cadist]

I don't think there's difference. It's just a shortcut available under roughing as well as finishing for surface contouring.

[crazy^millman]

Might take a look at the Toolpath Configration C-hook for cutting flats areas with this toolpath. Seems like a very handy chook for this toolpath.

 

Here from help:

quote:

---

Use the Toolpath Configuration C-Hook to enable the option to add additional cuts to flat or very shallow areas of your surface toolpath. Once the option has been selected, create the additional cuts by choosing the Flats button on the Rough contour parameters or Finish contour parameters dialog box:

 

Mastercam already includes the Shallow option, which adds additional cuts in shallow areas of the part, but these additional passes are at different Z depths. In contrast, the extra cuts added with the Flats option are at the same Z depth, making them appropriate for perfectly flat areas or other areas shallow enough that different cuts at the same Z depth are within your application tolerance.

---

Might be worth taking a look at to get more use out of this toolpath.

 

Here is what it's name is in the Chook Folder.

 

The files for this C-Hook include:

 

¨ tpcfg.dll

 

¨ tpcfg.doc

 

¨ tpcfg.txt

 

Note: Your C-Hook might show more tabs and options than those listed here. Options not described here are for internal use only, and do not have any useful function for most users.

 

 

HTH

[cadist]

Hey welcome hussienkhani

Welcome to the forum. Its nice to have another one from this part of world. Keep visiting

[Jim at Gentex]

I never realized they were the same!

I always use a rough toolpath w/ depth cuts to step down, near the surface, then a finish toolpath w/o depth cuts and a tighter step increment. Works like a charm!

[Tcommis]

I used rough to finish accidently once as i was copying ops. and only problem i had was the tool kept hopping around. i think their right, finish just uses tighter math caculations. I notice rough seems to make toolpaths much faster probably for the same reason.

[Chris Rizzo]

Thanks for that tip Crazy,

 

I was just using contour on a dome shape yesterday, and the shallow feature was not working so well...(especially on a perfectly flat area). I'll have to play around with that c-hook. Steeper areas it's great, and granted contour is'nt really designed for shallow surface angles, but it would be nice to have the flexibilty.

 

Hey, wa'nt there another thread recently about contour and steep/shallow?

 

thx!

[DavidB]

If you want the toolpath to cut at certain deepths in the cut deepths box ticke select deepths then you can select heights from your modal that you want extra passes put in.