surface finish help

[wildcat99]

Using Surface Finish Contour in X for the finish cut on a foam pattern. There are small "gouges" left on the part that also shows in Verify.

 

Will changing the Filter/Tolerance settings fix this? Thanks for your help.

 

[heavychevy2155]

can you tighten up your tolerances in your filter maybe 2:1 and total tolerance of .0005. It could be in your graphics also. Do you have Metacut, I would look at the code in that if you have it.

[Ocean Lacky™]

Look at your toolpath....are there up and down motions associated with the "gouges"? If so, it could be your Roll Tool setting.

[wildcat99]

heavy:

Thanks, I'll tighten up the tolerance and change filter to 2:1. If it looks good in Verify, I'll go with it and see what the part looks like when we cut tomorrow.

 

Ocean:

The toolpath looks clean, nothing strange there. ??? The roll tool is set to Automatic and a sharp corner tolerance of 100% of cut tol.

[heavychevy2155]

if you are still worried about the path get some scrap alum. and make some test cuts, just to be on the safeside. Im sure it'll come out just fine.

[Chris Rizzo]

Try turning the filter off and verifying and see what the screen looks like. That should give you a baseline of "smooth" in regards to your graphics card.

[heavychevy2155]

did it work for you?

[wildcat99]

Just finished cutting and Yes it worked great!!! Used .0005 tolerance and 2:1 filter. I also discovered the Spiral Limit option and used it this time. I've always used Highfeed and with the looser tolerance, there would always be some direction changes the cutter was moving way too fast. This time the whole program was smoother.

 

There are still some minor marks in the pattern, but we can live with that. If I had more machine time I could use a smaller stepover. Would and even tighter tolerance, like .0001, and maybe a 1:1 filter ratio help the surface finish even more? Where's the limit?

 

Thanks for your help

[Keith @ Solid Code Solutions]

Wildcat,

 

There are limits and comprimises. If you tighten up the tollerence too far you could still choke the machine depending on you machine of course.