Spiral Project Shallow Dish

[CarbonCAD]

We have a concave bowl shape 4" dia and about .0004" +/-.0001 deep in the middle. Surface finish is very critical to the customer. After testing our options the spiral project is the best for the job, but when the tolerances are tightened to .00005 the posted program makes a very small z move that makes tiny gouges in the part. I have taken part of the program and removed everything but the z moves for an example. This is our Makino machine and it responds to all of these little z changes. Can I get it to not flutter, but keep the tolerance tight.

 

X.00062 Y0. Z-.0352

X-.00726 Y.09168 Z-.03519

X-.04719 Y.07957 Z-.0352

X-.06549 Y-.06673 Z-.03519

X.09562 Y0. Z-.0352

X.09542 Y.00621 Z-.03519

X-.04578 Y-.17828 Z-.03518

X.12376 Y-.13779 Z-.03519

X.14251 Y.11938 Z-.03518

X.00869 Y.24667 Z-.03517

X-.09802 Y.22712 Z-.03518

X-.16412 Y-.18666 Z-.03517

X.23441 Y-.08843 Z-.03518

X.23779 Y-.07897 Z-.03517

X.24077 Y-.06938 Z-.03518

X.24092 Y.06921 Z-.03517

 

Thanks in advance to anyone with some suggestions.

[dannysdad]

Hey Man,

 

I do not have a solution to your problem but I wanted to ask you a question about your process.

 

I also have a bowl-type feature that I must mill. The larger OD is 1.25" and the smaller OD is .8125" and the bottom of the "bowl" is .038". There is a 10 degree angle connecting the two diameters. My question is...can this surface be milled using Mastercam Mill 1 or do I have to purchase Mill3?

 

Thanks

[MotorCityMinion]

Suggestions: Try changing your output to .0004 places. Try the hst spiral, no projections. Try the arc filter. Try SF Blend with the spiral option enabled.

[CarbonCAD]

dannysdad - this is a thread that I found while looking for this type of thing earlier: http://www.emastercam.com/board/index.php?showtopic=62443&hl=+spiral%20+project#entry702074

[dannysdad]

OK CarbonCad, I got my answer.

 

Thanks

[CarbonCAD]

I killed the hst spiral after 1.5 hours of processing the toolpath. I will look into SF blend. Thanks.

[Rotary Ninja]

You can get nice results with the radial toolpath as well. Less jittery too since it will move in straight lines.

[Rotary Ninja]

And raise your filter tolerance.

[Chris Rizzo]

Got smoothing turned up all the way? Very useful setting to utilize.

[Jayson Kramer]

Dannys Dad you should be able to do this with the Wire path of Swept you will need a a start dia and a profile.

[dannysdad]

@ Jay Kramer

 

I do not know what you mean by the Wire path of swept. Do I draw the geometry with sweep...and if so, how do I apply a toolpath to it, and what toolpath? I do not have any surfacing toolpaths.

 

Sorry if I am being dense, but I am basically self-taught on Mastercam and I have not done anything this complex.

 

Thanks